./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uniq-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_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/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_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/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_e16d457a-d480-45ab-8160-16d149c460ff/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 1c4309acb998a26f408a5a77bdd700985c40cebdb2b8a8c74b4449e908f8325f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:41,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:41,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:51:41,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:41,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:41,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:41,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:41,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:41,471 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:41,472 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:41,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:41,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:41,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:41,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:41,475 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:41,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:41,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:41,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:41,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:41,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:41,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:41,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:41,481 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:51:41,481 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:41,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:41,483 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:41,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:41,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:41,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:41,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:41,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:41,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:41,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:41,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:41,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:41,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:41,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:41,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:41,491 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:41,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:41,492 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:41,493 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_e16d457a-d480-45ab-8160-16d149c460ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c4309acb998a26f408a5a77bdd700985c40cebdb2b8a8c74b4449e908f8325f [2023-11-26 11:51:41,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:41,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:41,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:41,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:41,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:41,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-26 11:51:45,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:45,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:45,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-26 11:51:45,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/data/9f999af68/44c47c7cbfd44640a82c2127184e9056/FLAGbcca272ca [2023-11-26 11:51:45,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/data/9f999af68/44c47c7cbfd44640a82c2127184e9056 [2023-11-26 11:51:45,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:45,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:45,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:45,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:45,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:45,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b24587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:45, skipping insertion in model container [2023-11-26 11:51:45,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:45" (1/1) ... [2023-11-26 11:51:45,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:47,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:47,804 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:47,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:48,206 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,206 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,206 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,207 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,207 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,207 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,208 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:48,216 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:48,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48 WrapperNode [2023-11-26 11:51:48,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:48,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:48,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:48,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:48,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,514 INFO L138 Inliner]: procedures = 600, calls = 440, calls flagged for inlining = 31, calls inlined = 30, statements flattened = 1898 [2023-11-26 11:51:48,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:48,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:48,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:48,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:48,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,717 INFO L175 MemorySlicer]: Split 292 memory accesses to 21 slices as follows [2, 33, 11, 3, 6, 29, 2, 17, 14, 3, 16, 17, 1, 1, 3, 3, 54, 44, 20, 7, 6]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 0, 3, 0, 0, 0, 0, 1, 0, 16, 4, 0, 0, 0, 0, 17, 0, 0, 0, 0]. The 83 writes are split as follows [0, 13, 4, 0, 2, 0, 1, 3, 6, 0, 0, 4, 1, 1, 0, 0, 23, 12, 3, 7, 3]. [2023-11-26 11:51:48,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:48,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:48,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:48,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:48,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:48,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:49,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:49,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure xopen [2023-11-26 11:51:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure xopen [2023-11-26 11:51:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-26 11:51:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#0 [2023-11-26 11:51:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#1 [2023-11-26 11:51:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#2 [2023-11-26 11:51:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#3 [2023-11-26 11:51:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#4 [2023-11-26 11:51:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#5 [2023-11-26 11:51:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#6 [2023-11-26 11:51:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#7 [2023-11-26 11:51:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#8 [2023-11-26 11:51:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#9 [2023-11-26 11:51:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#10 [2023-11-26 11:51:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#11 [2023-11-26 11:51:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#12 [2023-11-26 11:51:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#13 [2023-11-26 11:51:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#14 [2023-11-26 11:51:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#15 [2023-11-26 11:51:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#16 [2023-11-26 11:51:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#17 [2023-11-26 11:51:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#18 [2023-11-26 11:51:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#19 [2023-11-26 11:51:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#20 [2023-11-26 11:51:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#0 [2023-11-26 11:51:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#1 [2023-11-26 11:51:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#2 [2023-11-26 11:51:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#3 [2023-11-26 11:51:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#4 [2023-11-26 11:51:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#5 [2023-11-26 11:51:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#6 [2023-11-26 11:51:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#7 [2023-11-26 11:51:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#8 [2023-11-26 11:51:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#9 [2023-11-26 11:51:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#10 [2023-11-26 11:51:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#11 [2023-11-26 11:51:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#12 [2023-11-26 11:51:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#13 [2023-11-26 11:51:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#14 [2023-11-26 11:51:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#15 [2023-11-26 11:51:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#16 [2023-11-26 11:51:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#17 [2023-11-26 11:51:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#18 [2023-11-26 11:51:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#19 [2023-11-26 11:51:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#20 [2023-11-26 11:51:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-26 11:51:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-26 11:51:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-26 11:51:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-26 11:51:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 11:51:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 11:51:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 11:51:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 11:51:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 11:51:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 11:51:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 11:51:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 11:51:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-26 11:51:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-26 11:51:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-26 11:51:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-26 11:51:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-26 11:51:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-26 11:51:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-26 11:51:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-26 11:51:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-26 11:51:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-26 11:51:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-26 11:51:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2023-11-26 11:51:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2023-11-26 11:51:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-26 11:51:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-26 11:51:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-26 11:51:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 11:51:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 11:51:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 11:51:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 11:51:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 11:51:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 11:51:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 11:51:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 11:51:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-26 11:51:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-26 11:51:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-26 11:51:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-26 11:51:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-26 11:51:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-26 11:51:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-26 11:51:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-26 11:51:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-26 11:51:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-26 11:51:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-26 11:51:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-26 11:51:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2023-11-26 11:51:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:51:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:51:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:51:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:51:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:51:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:51:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:51:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:51:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:51:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 11:51:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 11:51:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 11:51:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 11:51:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 11:51:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 11:51:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-26 11:51:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-26 11:51:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-26 11:51:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-26 11:51:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-26 11:51:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-26 11:51:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:51:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 11:51:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:51:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:51:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:51:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:51:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:51:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:51:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:51:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:51:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:51:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 11:51:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 11:51:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 11:51:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 11:51:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 11:51:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 11:51:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-26 11:51:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-26 11:51:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-26 11:51:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-26 11:51:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-26 11:51:49,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-26 11:51:49,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2023-11-26 11:51:49,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2023-11-26 11:51:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2023-11-26 11:51:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2023-11-26 11:51:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2023-11-26 11:51:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2023-11-26 11:51:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2023-11-26 11:51:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2023-11-26 11:51:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2023-11-26 11:51:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2023-11-26 11:51:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2023-11-26 11:51:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2023-11-26 11:51:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2023-11-26 11:51:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2023-11-26 11:51:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2023-11-26 11:51:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2023-11-26 11:51:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2023-11-26 11:51:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2023-11-26 11:51:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2023-11-26 11:51:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#19 [2023-11-26 11:51:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#20 [2023-11-26 11:51:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2023-11-26 11:51:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2023-11-26 11:51:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2023-11-26 11:51:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2023-11-26 11:51:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2023-11-26 11:51:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2023-11-26 11:51:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2023-11-26 11:51:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2023-11-26 11:51:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2023-11-26 11:51:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2023-11-26 11:51:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2023-11-26 11:51:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2023-11-26 11:51:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2023-11-26 11:51:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2023-11-26 11:51:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2023-11-26 11:51:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2023-11-26 11:51:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2023-11-26 11:51:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2023-11-26 11:51:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2023-11-26 11:51:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#19 [2023-11-26 11:51:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#20 [2023-11-26 11:51:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-26 11:51:49,122 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-26 11:51:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 11:51:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 11:51:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 11:51:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 11:51:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 11:51:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 11:51:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 11:51:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 11:51:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-26 11:51:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-26 11:51:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-26 11:51:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-26 11:51:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-26 11:51:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-26 11:51:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-26 11:51:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-26 11:51:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-26 11:51:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-26 11:51:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-26 11:51:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2023-11-26 11:51:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2023-11-26 11:51:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 11:51:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 11:51:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 11:51:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 11:51:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 11:51:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 11:51:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 11:51:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 11:51:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-26 11:51:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-26 11:51:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-26 11:51:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-26 11:51:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-26 11:51:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-26 11:51:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-26 11:51:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-26 11:51:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-26 11:51:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-26 11:51:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-26 11:51:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-26 11:51:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2023-11-26 11:51:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-26 11:51:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-26 11:51:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:51:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:51:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:51:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:51:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-26 11:51:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-26 11:51:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-26 11:51:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-26 11:51:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-26 11:51:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-26 11:51:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-26 11:51:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-26 11:51:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-26 11:51:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-11-26 11:51:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2023-11-26 11:51:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2023-11-26 11:51:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2023-11-26 11:51:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2023-11-26 11:51:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2023-11-26 11:51:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2023-11-26 11:51:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2023-11-26 11:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-26 11:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-26 11:51:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-26 11:51:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-26 11:51:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-26 11:51:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-26 11:51:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-26 11:51:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-26 11:51:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-26 11:51:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-11-26 11:51:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2023-11-26 11:51:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2023-11-26 11:51:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2023-11-26 11:51:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2023-11-26 11:51:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2023-11-26 11:51:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2023-11-26 11:51:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2023-11-26 11:51:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:51:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:51:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:51:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:51:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:51:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:51:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:51:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:51:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:51:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 11:51:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 11:51:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 11:51:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 11:51:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 11:51:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 11:51:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-26 11:51:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-26 11:51:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-26 11:51:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-26 11:51:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-26 11:51:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-26 11:51:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-26 11:51:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:51:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:51:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:51:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:51:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:51:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:51:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:51:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:51:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:51:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 11:51:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 11:51:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 11:51:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 11:51:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-26 11:51:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-26 11:51:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-26 11:51:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-26 11:51:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-26 11:51:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-26 11:51:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-26 11:51:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-26 11:51:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-26 11:51:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-26 11:51:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:51:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:51:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:51:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:51:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:51:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:51:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:51:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:51:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:51:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 11:51:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 11:51:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 11:51:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 11:51:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 11:51:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 11:51:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-26 11:51:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-26 11:51:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-26 11:51:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-26 11:51:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-26 11:51:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-26 11:51:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-26 11:51:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-26 11:51:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-26 11:51:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:51:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:51:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:51:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:51:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:51:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:51:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:51:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:51:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 11:51:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 11:51:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 11:51:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 11:51:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 11:51:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 11:51:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-26 11:51:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-26 11:51:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-26 11:51:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-26 11:51:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-26 11:51:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-26 11:51:49,956 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:49,960 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:52,498 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:52,607 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:52,607 INFO L309 CfgBuilder]: Removed 53 assume(true) statements. [2023-11-26 11:51:52,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:52 BoogieIcfgContainer [2023-11-26 11:51:52,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:52,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:52,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:52,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:52,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:45" (1/3) ... [2023-11-26 11:51:52,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7506642c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:52, skipping insertion in model container [2023-11-26 11:51:52,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48" (2/3) ... [2023-11-26 11:51:52,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7506642c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:52, skipping insertion in model container [2023-11-26 11:51:52,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:52" (3/3) ... [2023-11-26 11:51:52,620 INFO L112 eAbstractionObserver]: Analyzing ICFG uniq-2.i [2023-11-26 11:51:52,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:52,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2023-11-26 11:51:52,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:52,742 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;@65e23327, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:52,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2023-11-26 11:51:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 452 states have (on average 1.7278761061946903) internal successors, (781), 523 states have internal predecessors, (781), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:51:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:51:52,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:52,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:51:52,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:52,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:52,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2450362, now seen corresponding path program 1 times [2023-11-26 11:51:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:52,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701465583] [2023-11-26 11:51:52,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:52,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:53,461 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 11:51:53,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:53,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701465583] [2023-11-26 11:51:53,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701465583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:53,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:53,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:51:53,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508510494] [2023-11-26 11:51:53,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:53,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:53,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:53,529 INFO L87 Difference]: Start difference. First operand has 571 states, 452 states have (on average 1.7278761061946903) internal successors, (781), 523 states have internal predecessors, (781), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) 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 11:51:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:53,866 INFO L93 Difference]: Finished difference Result 1121 states and 1701 transitions. [2023-11-26 11:51:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:53,869 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 11:51:53,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:53,895 INFO L225 Difference]: With dead ends: 1121 [2023-11-26 11:51:53,895 INFO L226 Difference]: Without dead ends: 542 [2023-11-26 11:51:53,907 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 11:51:53,913 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 3 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:53,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1479 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:51:53,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-26 11:51:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2023-11-26 11:51:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 433 states have (on average 1.6120092378752886) internal successors, (698), 504 states have internal predecessors, (698), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:54,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 756 transitions. [2023-11-26 11:51:54,053 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 756 transitions. Word has length 3 [2023-11-26 11:51:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:54,054 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 756 transitions. [2023-11-26 11:51:54,054 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 11:51:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 756 transitions. [2023-11-26 11:51:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:51:54,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:54,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:51:54,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:54,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:54,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash 75962152, now seen corresponding path program 1 times [2023-11-26 11:51:54,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:54,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512743071] [2023-11-26 11:51:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:54,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:54,227 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 11:51:54,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:54,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512743071] [2023-11-26 11:51:54,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512743071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:54,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:54,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:51:54,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626291123] [2023-11-26 11:51:54,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:54,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:54,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:54,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:54,234 INFO L87 Difference]: Start difference. First operand 542 states and 756 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:54,400 INFO L93 Difference]: Finished difference Result 1083 states and 1511 transitions. [2023-11-26 11:51:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:54,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-26 11:51:54,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:54,406 INFO L225 Difference]: With dead ends: 1083 [2023-11-26 11:51:54,407 INFO L226 Difference]: Without dead ends: 545 [2023-11-26 11:51:54,408 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 11:51:54,410 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 0 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:54,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1443 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:54,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-11-26 11:51:54,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-11-26 11:51:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 436 states have (on average 1.6077981651376148) internal successors, (701), 507 states have internal predecessors, (701), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 759 transitions. [2023-11-26 11:51:54,439 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 759 transitions. Word has length 4 [2023-11-26 11:51:54,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:54,439 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 759 transitions. [2023-11-26 11:51:54,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 759 transitions. [2023-11-26 11:51:54,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:51:54,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:54,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 11:51:54,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:54,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:54,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:54,442 INFO L85 PathProgramCache]: Analyzing trace with hash -458376137, now seen corresponding path program 1 times [2023-11-26 11:51:54,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:54,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888885460] [2023-11-26 11:51:54,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:54,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:54,614 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 11:51:54,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:54,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888885460] [2023-11-26 11:51:54,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888885460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:54,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:54,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:54,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324392328] [2023-11-26 11:51:54,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:54,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:54,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:54,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:54,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:54,618 INFO L87 Difference]: Start difference. First operand 545 states and 759 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 11:51:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:54,764 INFO L93 Difference]: Finished difference Result 545 states and 759 transitions. [2023-11-26 11:51:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:54,765 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 11:51:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:54,771 INFO L225 Difference]: With dead ends: 545 [2023-11-26 11:51:54,771 INFO L226 Difference]: Without dead ends: 544 [2023-11-26 11:51:54,772 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 11:51:54,777 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 0 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:54,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1442 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:54,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-26 11:51:54,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 542. [2023-11-26 11:51:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 434 states have (on average 1.608294930875576) internal successors, (698), 504 states have internal predecessors, (698), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 756 transitions. [2023-11-26 11:51:54,846 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 756 transitions. Word has length 7 [2023-11-26 11:51:54,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:54,847 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 756 transitions. [2023-11-26 11:51:54,847 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 11:51:54,847 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 756 transitions. [2023-11-26 11:51:54,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 11:51:54,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:54,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:54,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:51:54,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:54,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1555365206, now seen corresponding path program 1 times [2023-11-26 11:51:54,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:54,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266049453] [2023-11-26 11:51:54,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:54,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:51:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:55,093 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 11:51:55,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:55,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266049453] [2023-11-26 11:51:55,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266049453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:55,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184988703] [2023-11-26 11:51:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:55,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:55,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:55,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:51:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:55,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:55,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:55,719 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 11:51:55,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:55,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184988703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:55,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:51:55,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 11:51:55,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421168457] [2023-11-26 11:51:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:55,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:55,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:55,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:55,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:55,723 INFO L87 Difference]: Start difference. First operand 542 states and 756 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 11:51:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:55,884 INFO L93 Difference]: Finished difference Result 542 states and 756 transitions. [2023-11-26 11:51:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:55,885 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 11:51:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:55,890 INFO L225 Difference]: With dead ends: 542 [2023-11-26 11:51:55,890 INFO L226 Difference]: Without dead ends: 540 [2023-11-26 11:51:55,890 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 11:51:55,891 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 544 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:55,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 893 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:55,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-26 11:51:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2023-11-26 11:51:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 434 states have (on average 1.6036866359447004) internal successors, (696), 502 states have internal predecessors, (696), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 754 transitions. [2023-11-26 11:51:55,919 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 754 transitions. Word has length 12 [2023-11-26 11:51:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:55,921 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 754 transitions. [2023-11-26 11:51:55,921 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 11:51:55,921 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 754 transitions. [2023-11-26 11:51:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:51:55,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:55,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:55,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:56,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:56,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:56,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:56,133 INFO L85 PathProgramCache]: Analyzing trace with hash -971680191, now seen corresponding path program 1 times [2023-11-26 11:51:56,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:56,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66334098] [2023-11-26 11:51:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:56,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:56,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:51:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:56,428 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 11:51:56,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:56,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66334098] [2023-11-26 11:51:56,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66334098] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115477942] [2023-11-26 11:51:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:56,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:56,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:56,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:56,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:51:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:56,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:51:56,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:57,002 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 11:51:57,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:57,035 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 11:51:57,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115477942] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:57,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:51:57,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 6 [2023-11-26 11:51:57,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926122830] [2023-11-26 11:51:57,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:57,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:57,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:57,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:57,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:57,038 INFO L87 Difference]: Start difference. First operand 540 states and 754 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 11:51:57,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:57,238 INFO L93 Difference]: Finished difference Result 1084 states and 1514 transitions. [2023-11-26 11:51:57,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:57,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 11:51:57,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:57,246 INFO L225 Difference]: With dead ends: 1084 [2023-11-26 11:51:57,246 INFO L226 Difference]: Without dead ends: 549 [2023-11-26 11:51:57,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:57,252 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 4 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:57,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2156 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:57,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-26 11:51:57,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-11-26 11:51:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 443 states have (on average 1.5914221218961626) internal successors, (705), 511 states have internal predecessors, (705), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 763 transitions. [2023-11-26 11:51:57,282 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 763 transitions. Word has length 13 [2023-11-26 11:51:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:57,282 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 763 transitions. [2023-11-26 11:51:57,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 11:51:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 763 transitions. [2023-11-26 11:51:57,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 11:51:57,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:57,284 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:57,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:57,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:57,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:57,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:57,493 INFO L85 PathProgramCache]: Analyzing trace with hash -443468878, now seen corresponding path program 2 times [2023-11-26 11:51:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:57,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32887343] [2023-11-26 11:51:57,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:57,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:51:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,898 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 11:51:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32887343] [2023-11-26 11:51:57,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32887343] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:57,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397300247] [2023-11-26 11:51:57,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:51:57,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:57,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:57,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:57,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:51:58,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:51:58,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:58,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:58,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:58,595 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 11:51:58,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:58,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397300247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:58,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:51:58,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-26 11:51:58,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109862022] [2023-11-26 11:51:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:58,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:51:58,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:58,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:58,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:51:58,599 INFO L87 Difference]: Start difference. First operand 549 states and 763 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 11:51:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:58,964 INFO L93 Difference]: Finished difference Result 549 states and 763 transitions. [2023-11-26 11:51:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:51:58,965 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 11:51:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:58,970 INFO L225 Difference]: With dead ends: 549 [2023-11-26 11:51:58,970 INFO L226 Difference]: Without dead ends: 547 [2023-11-26 11:51:58,971 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 11:51:58,972 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 543 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:58,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 2278 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:51:58,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-26 11:51:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-11-26 11:51:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.5869074492099322) internal successors, (703), 509 states have internal predecessors, (703), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 761 transitions. [2023-11-26 11:51:59,004 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 761 transitions. Word has length 22 [2023-11-26 11:51:59,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:59,005 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 761 transitions. [2023-11-26 11:51:59,005 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 11:51:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 761 transitions. [2023-11-26 11:51:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 11:51:59,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:59,007 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 11:51:59,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:59,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:59,217 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:59,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:59,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1501348998, now seen corresponding path program 1 times [2023-11-26 11:51:59,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:59,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411375781] [2023-11-26 11:51:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:59,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:51:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,447 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 11:51:59,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:59,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411375781] [2023-11-26 11:51:59,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411375781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:59,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:59,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:59,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608814519] [2023-11-26 11:51:59,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:59,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:59,449 INFO L87 Difference]: Start difference. First operand 547 states and 761 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 11:51:59,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:59,573 INFO L93 Difference]: Finished difference Result 1077 states and 1506 transitions. [2023-11-26 11:51:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:59,574 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 11:51:59,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:59,580 INFO L225 Difference]: With dead ends: 1077 [2023-11-26 11:51:59,580 INFO L226 Difference]: Without dead ends: 550 [2023-11-26 11:51:59,582 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 11:51:59,583 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 1 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:59,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-26 11:51:59,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-11-26 11:51:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 446 states have (on average 1.5829596412556053) internal successors, (706), 512 states have internal predecessors, (706), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:51:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 764 transitions. [2023-11-26 11:51:59,609 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 764 transitions. Word has length 27 [2023-11-26 11:51:59,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:59,609 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 764 transitions. [2023-11-26 11:51:59,610 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 11:51:59,610 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 764 transitions. [2023-11-26 11:51:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 11:51:59,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:59,612 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:59,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:51:59,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:51:59,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:59,613 INFO L85 PathProgramCache]: Analyzing trace with hash -313885368, now seen corresponding path program 1 times [2023-11-26 11:51:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:59,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437202815] [2023-11-26 11:51:59,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:59,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:51:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,832 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 11:51:59,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:59,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437202815] [2023-11-26 11:51:59,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437202815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:59,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:59,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154329765] [2023-11-26 11:51:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:59,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:59,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:59,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:59,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:59,835 INFO L87 Difference]: Start difference. First operand 550 states and 764 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:59,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:59,996 INFO L93 Difference]: Finished difference Result 824 states and 1177 transitions. [2023-11-26 11:51:59,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:59,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-26 11:51:59,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:00,003 INFO L225 Difference]: With dead ends: 824 [2023-11-26 11:52:00,003 INFO L226 Difference]: Without dead ends: 822 [2023-11-26 11:52:00,003 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 11:52:00,004 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 387 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:00,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1418 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:00,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-11-26 11:52:00,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 554. [2023-11-26 11:52:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 450 states have (on average 1.58) internal successors, (711), 516 states have internal predecessors, (711), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 769 transitions. [2023-11-26 11:52:00,035 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 769 transitions. Word has length 29 [2023-11-26 11:52:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:00,036 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 769 transitions. [2023-11-26 11:52:00,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:52:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 769 transitions. [2023-11-26 11:52:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:52:00,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:00,038 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 11:52:00,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:52:00,038 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:00,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:00,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1100464031, now seen corresponding path program 1 times [2023-11-26 11:52:00,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:00,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86418271] [2023-11-26 11:52:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:52:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,243 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 11:52:00,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:00,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86418271] [2023-11-26 11:52:00,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86418271] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259324058] [2023-11-26 11:52:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:00,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:00,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:00,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:52:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:52:00,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:00,852 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 11:52:00,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:00,997 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 11:52:00,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259324058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:00,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:00,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-26 11:52:00,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916780364] [2023-11-26 11:52:00,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:00,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:52:00,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:01,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:52:01,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:52:01,001 INFO L87 Difference]: Start difference. First operand 554 states and 769 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 11:52:01,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:01,359 INFO L93 Difference]: Finished difference Result 1111 states and 1547 transitions. [2023-11-26 11:52:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:52:01,360 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 11:52:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:01,364 INFO L225 Difference]: With dead ends: 1111 [2023-11-26 11:52:01,364 INFO L226 Difference]: Without dead ends: 571 [2023-11-26 11:52:01,366 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 11:52:01,368 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 7 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:01,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4262 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:52:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-26 11:52:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-11-26 11:52:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 468 states have (on average 1.5555555555555556) internal successors, (728), 533 states have internal predecessors, (728), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 786 transitions. [2023-11-26 11:52:01,409 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 786 transitions. Word has length 30 [2023-11-26 11:52:01,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:01,411 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 786 transitions. [2023-11-26 11:52:01,412 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 11:52:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 786 transitions. [2023-11-26 11:52:01,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:52:01,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:01,418 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 11:52:01,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:01,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:01,630 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:01,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash 255448739, now seen corresponding path program 1 times [2023-11-26 11:52:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:01,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742160116] [2023-11-26 11:52:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:01,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:01,835 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 11:52:01,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:01,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742160116] [2023-11-26 11:52:01,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742160116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:01,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:01,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:01,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612430917] [2023-11-26 11:52:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:01,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:01,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:01,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:01,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:01,839 INFO L87 Difference]: Start difference. First operand 571 states and 786 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 11:52:01,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:01,954 INFO L93 Difference]: Finished difference Result 571 states and 786 transitions. [2023-11-26 11:52:01,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:01,955 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 11:52:01,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:01,959 INFO L225 Difference]: With dead ends: 571 [2023-11-26 11:52:01,959 INFO L226 Difference]: Without dead ends: 570 [2023-11-26 11:52:01,960 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 11:52:01,961 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 0 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:01,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1429 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-26 11:52:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2023-11-26 11:52:01,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 466 states have (on average 1.555793991416309) internal successors, (725), 530 states have internal predecessors, (725), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:01,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 783 transitions. [2023-11-26 11:52:01,991 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 783 transitions. Word has length 49 [2023-11-26 11:52:01,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:01,992 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 783 transitions. [2023-11-26 11:52:01,993 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 11:52:01,993 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 783 transitions. [2023-11-26 11:52:01,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:52:01,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:01,996 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 11:52:01,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:52:01,996 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:01,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:01,997 INFO L85 PathProgramCache]: Analyzing trace with hash 255447010, now seen corresponding path program 1 times [2023-11-26 11:52:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:01,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193700244] [2023-11-26 11:52:01,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:01,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:02,218 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 11:52:02,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:02,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193700244] [2023-11-26 11:52:02,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193700244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:02,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:02,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:02,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683606233] [2023-11-26 11:52:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:02,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:02,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:02,221 INFO L87 Difference]: Start difference. First operand 568 states and 783 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 11:52:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:02,380 INFO L93 Difference]: Finished difference Result 579 states and 796 transitions. [2023-11-26 11:52:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:02,381 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 11:52:02,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:02,385 INFO L225 Difference]: With dead ends: 579 [2023-11-26 11:52:02,385 INFO L226 Difference]: Without dead ends: 577 [2023-11-26 11:52:02,386 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 11:52:02,386 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 2 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:02,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1424 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-11-26 11:52:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 576. [2023-11-26 11:52:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 474 states have (on average 1.5506329113924051) internal successors, (735), 538 states have internal predecessors, (735), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 793 transitions. [2023-11-26 11:52:02,418 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 793 transitions. Word has length 49 [2023-11-26 11:52:02,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:02,419 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 793 transitions. [2023-11-26 11:52:02,419 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 11:52:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 793 transitions. [2023-11-26 11:52:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 11:52:02,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:02,420 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:02,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:52:02,421 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:02,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:02,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1640018433, now seen corresponding path program 1 times [2023-11-26 11:52:02,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:02,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510469643] [2023-11-26 11:52:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:02,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:02,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:52:02,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:02,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510469643] [2023-11-26 11:52:02,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510469643] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:02,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352651941] [2023-11-26 11:52:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:02,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:02,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:02,684 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:02,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:52:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:03,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:03,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:52:03,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352651941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:03,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:52:03,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-26 11:52:03,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484669226] [2023-11-26 11:52:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:03,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:03,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:03,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:52:03,395 INFO L87 Difference]: Start difference. First operand 576 states and 793 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:52:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:03,698 INFO L93 Difference]: Finished difference Result 848 states and 1205 transitions. [2023-11-26 11:52:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2023-11-26 11:52:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:03,704 INFO L225 Difference]: With dead ends: 848 [2023-11-26 11:52:03,705 INFO L226 Difference]: Without dead ends: 847 [2023-11-26 11:52:03,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 11:52:03,706 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 774 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:03,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2145 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-11-26 11:52:03,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 575. [2023-11-26 11:52:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 474 states have (on average 1.5485232067510548) internal successors, (734), 537 states have internal predecessors, (734), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 792 transitions. [2023-11-26 11:52:03,741 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 792 transitions. Word has length 51 [2023-11-26 11:52:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:03,741 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 792 transitions. [2023-11-26 11:52:03,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:52:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 792 transitions. [2023-11-26 11:52:03,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 11:52:03,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:03,743 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:03,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:03,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:52:03,952 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:03,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:03,953 INFO L85 PathProgramCache]: Analyzing trace with hash -699035138, now seen corresponding path program 1 times [2023-11-26 11:52:03,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:03,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060639532] [2023-11-26 11:52:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:52:04,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:04,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060639532] [2023-11-26 11:52:04,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060639532] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:04,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795111768] [2023-11-26 11:52:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:04,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:04,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:04,279 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:04,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:52:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:04,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:04,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:52:04,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:52:05,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795111768] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:05,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:05,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:52:05,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013589349] [2023-11-26 11:52:05,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:05,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:52:05,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:05,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:52:05,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:52:05,022 INFO L87 Difference]: Start difference. First operand 575 states and 792 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:52:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:05,467 INFO L93 Difference]: Finished difference Result 1660 states and 2434 transitions. [2023-11-26 11:52:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:05,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-26 11:52:05,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:05,479 INFO L225 Difference]: With dead ends: 1660 [2023-11-26 11:52:05,480 INFO L226 Difference]: Without dead ends: 1659 [2023-11-26 11:52:05,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 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 11:52:05,484 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 2320 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:05,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 3544 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:52:05,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2023-11-26 11:52:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 587. [2023-11-26 11:52:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 486 states have (on average 1.5411522633744856) internal successors, (749), 549 states have internal predecessors, (749), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 807 transitions. [2023-11-26 11:52:05,539 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 807 transitions. Word has length 52 [2023-11-26 11:52:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:05,540 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 807 transitions. [2023-11-26 11:52:05,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:52:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 807 transitions. [2023-11-26 11:52:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 11:52:05,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:05,541 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 11:52:05,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:05,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:52:05,755 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:05,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:05,756 INFO L85 PathProgramCache]: Analyzing trace with hash -239927925, now seen corresponding path program 1 times [2023-11-26 11:52:05,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:05,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859720119] [2023-11-26 11:52:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:05,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:06,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:06,030 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 11:52:06,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859720119] [2023-11-26 11:52:06,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859720119] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920942699] [2023-11-26 11:52:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:06,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:06,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:06,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:06,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:52:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:06,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:52:06,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:06,674 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 11:52:06,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:06,697 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 11:52:06,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920942699] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:06,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:06,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-26 11:52:06,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762749498] [2023-11-26 11:52:06,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:06,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:52:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:52:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:52:06,700 INFO L87 Difference]: Start difference. First operand 587 states and 807 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 11:52:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:06,885 INFO L93 Difference]: Finished difference Result 1149 states and 1591 transitions. [2023-11-26 11:52:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:06,886 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 11:52:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:06,890 INFO L225 Difference]: With dead ends: 1149 [2023-11-26 11:52:06,890 INFO L226 Difference]: Without dead ends: 605 [2023-11-26 11:52:06,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 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 11:52:06,893 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 4 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:06,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2851 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-11-26 11:52:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2023-11-26 11:52:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 504 states have (on average 1.5218253968253967) internal successors, (767), 567 states have internal predecessors, (767), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:52:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 825 transitions. [2023-11-26 11:52:06,927 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 825 transitions. Word has length 57 [2023-11-26 11:52:06,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:06,927 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 825 transitions. [2023-11-26 11:52:06,928 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 11:52:06,928 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 825 transitions. [2023-11-26 11:52:06,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-26 11:52:06,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:06,929 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:06,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:07,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:52:07,149 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:07,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash -473809611, now seen corresponding path program 1 times [2023-11-26 11:52:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:07,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188412901] [2023-11-26 11:52:07,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:07,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:07,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:52:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:07,415 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 11:52:07,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:07,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188412901] [2023-11-26 11:52:07,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188412901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:07,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:07,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:07,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392163992] [2023-11-26 11:52:07,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:07,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:07,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:07,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:07,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:07,417 INFO L87 Difference]: Start difference. First operand 605 states and 825 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:52:08,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:08,407 INFO L93 Difference]: Finished difference Result 1201 states and 1675 transitions. [2023-11-26 11:52:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-26 11:52:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:08,414 INFO L225 Difference]: With dead ends: 1201 [2023-11-26 11:52:08,415 INFO L226 Difference]: Without dead ends: 702 [2023-11-26 11:52:08,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:08,417 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 279 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:08,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1523 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:52:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-26 11:52:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 645. [2023-11-26 11:52:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 543 states have (on average 1.5119705340699816) internal successors, (821), 606 states have internal predecessors, (821), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:08,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 881 transitions. [2023-11-26 11:52:08,462 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 881 transitions. Word has length 60 [2023-11-26 11:52:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:08,462 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 881 transitions. [2023-11-26 11:52:08,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:52:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 881 transitions. [2023-11-26 11:52:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 11:52:08,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:08,464 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:08,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:52:08,465 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:08,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash -64469702, now seen corresponding path program 1 times [2023-11-26 11:52:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:08,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862659670] [2023-11-26 11:52:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:52:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:08,727 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 11:52:08,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:08,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862659670] [2023-11-26 11:52:08,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862659670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:08,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319903950] [2023-11-26 11:52:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:08,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:08,729 INFO L87 Difference]: Start difference. First operand 645 states and 881 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:09,540 INFO L93 Difference]: Finished difference Result 649 states and 884 transitions. [2023-11-26 11:52:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2023-11-26 11:52:09,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:09,545 INFO L225 Difference]: With dead ends: 649 [2023-11-26 11:52:09,545 INFO L226 Difference]: Without dead ends: 647 [2023-11-26 11:52:09,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:09,546 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 159 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:09,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1590 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:52:09,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-26 11:52:09,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2023-11-26 11:52:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 543 states have (on average 1.5082872928176796) internal successors, (819), 606 states have internal predecessors, (819), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:09,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 879 transitions. [2023-11-26 11:52:09,585 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 879 transitions. Word has length 62 [2023-11-26 11:52:09,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:09,586 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 879 transitions. [2023-11-26 11:52:09,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 879 transitions. [2023-11-26 11:52:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:52:09,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:09,587 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:09,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:52:09,587 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:09,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 627266963, now seen corresponding path program 2 times [2023-11-26 11:52:09,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:09,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399713760] [2023-11-26 11:52:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:09,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:52:09,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:09,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399713760] [2023-11-26 11:52:09,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399713760] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:09,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849024459] [2023-11-26 11:52:09,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:09,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:09,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:10,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:52:10,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:52:10,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:10,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:52:10,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-26 11:52:10,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:10,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849024459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:10,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:52:10,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-26 11:52:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83253676] [2023-11-26 11:52:10,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:10,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:10,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:10,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:10,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:52:10,720 INFO L87 Difference]: Start difference. First operand 645 states and 879 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 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 11:52:11,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:11,114 INFO L93 Difference]: Finished difference Result 1216 states and 1678 transitions. [2023-11-26 11:52:11,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:11,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 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 64 [2023-11-26 11:52:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:11,118 INFO L225 Difference]: With dead ends: 1216 [2023-11-26 11:52:11,119 INFO L226 Difference]: Without dead ends: 645 [2023-11-26 11:52:11,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:11,121 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 544 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:11,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 2945 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:52:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-11-26 11:52:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2023-11-26 11:52:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 543 states have (on average 1.5064456721915285) internal successors, (818), 606 states have internal predecessors, (818), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:11,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 878 transitions. [2023-11-26 11:52:11,155 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 878 transitions. Word has length 64 [2023-11-26 11:52:11,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:11,156 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 878 transitions. [2023-11-26 11:52:11,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 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 11:52:11,156 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 878 transitions. [2023-11-26 11:52:11,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:52:11,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:11,157 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:11,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:11,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:52:11,367 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:11,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash -631192135, now seen corresponding path program 2 times [2023-11-26 11:52:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:11,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641381492] [2023-11-26 11:52:11,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:11,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-26 11:52:11,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:11,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641381492] [2023-11-26 11:52:11,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641381492] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:11,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452569015] [2023-11-26 11:52:11,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:11,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:11,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:11,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:11,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:52:12,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:52:12,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:12,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:52:12,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-26 11:52:12,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-26 11:52:12,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452569015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:12,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:12,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-26 11:52:12,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115187971] [2023-11-26 11:52:12,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:12,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:52:12,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:12,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:52:12,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:52:12,708 INFO L87 Difference]: Start difference. First operand 645 states and 878 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 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 11:52:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:13,332 INFO L93 Difference]: Finished difference Result 1273 states and 1749 transitions. [2023-11-26 11:52:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:52:13,334 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-26 11:52:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:13,338 INFO L225 Difference]: With dead ends: 1273 [2023-11-26 11:52:13,338 INFO L226 Difference]: Without dead ends: 680 [2023-11-26 11:52:13,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-26 11:52:13,341 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 11 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:13,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3539 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:52:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-26 11:52:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2023-11-26 11:52:13,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 579 states have (on average 1.4732297063903281) internal successors, (853), 641 states have internal predecessors, (853), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 913 transitions. [2023-11-26 11:52:13,383 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 913 transitions. Word has length 75 [2023-11-26 11:52:13,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:13,384 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 913 transitions. [2023-11-26 11:52:13,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 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 11:52:13,384 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 913 transitions. [2023-11-26 11:52:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-26 11:52:13,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:13,386 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:13,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:13,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 11:52:13,595 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:13,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1708177713, now seen corresponding path program 1 times [2023-11-26 11:52:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:13,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552437141] [2023-11-26 11:52:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552437141] [2023-11-26 11:52:14,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552437141] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:14,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711824601] [2023-11-26 11:52:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:14,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:14,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:14,213 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:14,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:52:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:15,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:52:15,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:15,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:15,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711824601] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:15,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:15,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-26 11:52:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157024214] [2023-11-26 11:52:15,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:15,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:52:15,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:15,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:52:15,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:52:15,237 INFO L87 Difference]: Start difference. First operand 680 states and 913 transitions. Second operand has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 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 11:52:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:16,302 INFO L93 Difference]: Finished difference Result 3785 states and 5549 transitions. [2023-11-26 11:52:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:52:16,303 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 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 99 [2023-11-26 11:52:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:16,330 INFO L225 Difference]: With dead ends: 3785 [2023-11-26 11:52:16,330 INFO L226 Difference]: Without dead ends: 3784 [2023-11-26 11:52:16,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 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 11:52:16,333 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 5038 mSDsluCounter, 7802 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5118 SdHoareTripleChecker+Valid, 8511 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:16,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5118 Valid, 8511 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:52:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2023-11-26 11:52:16,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 704. [2023-11-26 11:52:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 603 states have (on average 1.4643449419568824) internal successors, (883), 665 states have internal predecessors, (883), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 943 transitions. [2023-11-26 11:52:16,423 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 943 transitions. Word has length 99 [2023-11-26 11:52:16,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:16,423 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 943 transitions. [2023-11-26 11:52:16,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 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 11:52:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 943 transitions. [2023-11-26 11:52:16,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:52:16,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:16,425 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:16,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:16,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:16,635 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:16,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1482261864, now seen corresponding path program 1 times [2023-11-26 11:52:16,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:16,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589923975] [2023-11-26 11:52:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:16,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:16,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:16,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:16,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589923975] [2023-11-26 11:52:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589923975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:16,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:16,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:16,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49943970] [2023-11-26 11:52:16,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:16,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:16,911 INFO L87 Difference]: Start difference. First operand 704 states and 943 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:17,850 INFO L93 Difference]: Finished difference Result 1223 states and 1696 transitions. [2023-11-26 11:52:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:17,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-26 11:52:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:17,855 INFO L225 Difference]: With dead ends: 1223 [2023-11-26 11:52:17,856 INFO L226 Difference]: Without dead ends: 779 [2023-11-26 11:52:17,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:17,858 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 273 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:17,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1695 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:52:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-11-26 11:52:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 707. [2023-11-26 11:52:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 608 states have (on average 1.4588815789473684) internal successors, (887), 668 states have internal predecessors, (887), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 947 transitions. [2023-11-26 11:52:17,939 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 947 transitions. Word has length 104 [2023-11-26 11:52:17,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:17,940 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 947 transitions. [2023-11-26 11:52:17,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 947 transitions. [2023-11-26 11:52:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:52:17,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:17,941 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:17,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:52:17,942 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:17,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1481629373, now seen corresponding path program 1 times [2023-11-26 11:52:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:17,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752579719] [2023-11-26 11:52:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:18,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:18,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:18,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752579719] [2023-11-26 11:52:18,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752579719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:18,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:18,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106143845] [2023-11-26 11:52:18,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:18,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:18,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:18,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:18,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:18,286 INFO L87 Difference]: Start difference. First operand 707 states and 947 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:19,177 INFO L93 Difference]: Finished difference Result 713 states and 956 transitions. [2023-11-26 11:52:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:19,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-26 11:52:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:19,182 INFO L225 Difference]: With dead ends: 713 [2023-11-26 11:52:19,183 INFO L226 Difference]: Without dead ends: 710 [2023-11-26 11:52:19,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:19,184 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 498 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:19,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1145 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:52:19,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-26 11:52:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 704. [2023-11-26 11:52:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 608 states have (on average 1.4539473684210527) internal successors, (884), 665 states have internal predecessors, (884), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 944 transitions. [2023-11-26 11:52:19,230 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 944 transitions. Word has length 104 [2023-11-26 11:52:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:19,231 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 944 transitions. [2023-11-26 11:52:19,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 944 transitions. [2023-11-26 11:52:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:52:19,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:19,233 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:19,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:52:19,233 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:19,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:19,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1294523698, now seen corresponding path program 1 times [2023-11-26 11:52:19,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:19,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234176120] [2023-11-26 11:52:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:19,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:19,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:19,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:19,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234176120] [2023-11-26 11:52:19,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234176120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:19,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:19,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950748972] [2023-11-26 11:52:19,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:19,536 INFO L87 Difference]: Start difference. First operand 704 states and 944 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:20,442 INFO L93 Difference]: Finished difference Result 1229 states and 1704 transitions. [2023-11-26 11:52:20,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:20,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2023-11-26 11:52:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:20,447 INFO L225 Difference]: With dead ends: 1229 [2023-11-26 11:52:20,448 INFO L226 Difference]: Without dead ends: 781 [2023-11-26 11:52:20,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:20,450 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 393 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:20,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1461 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:52:20,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2023-11-26 11:52:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 689. [2023-11-26 11:52:20,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 597 states have (on average 1.4472361809045227) internal successors, (864), 650 states have internal predecessors, (864), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:20,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 924 transitions. [2023-11-26 11:52:20,498 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 924 transitions. Word has length 105 [2023-11-26 11:52:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:20,498 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 924 transitions. [2023-11-26 11:52:20,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 924 transitions. [2023-11-26 11:52:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:52:20,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:20,501 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:20,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:52:20,501 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:20,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1314130979, now seen corresponding path program 1 times [2023-11-26 11:52:20,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:20,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519873066] [2023-11-26 11:52:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:20,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:20,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:20,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519873066] [2023-11-26 11:52:20,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519873066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:20,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:20,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305596079] [2023-11-26 11:52:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:20,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:20,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:20,812 INFO L87 Difference]: Start difference. First operand 689 states and 924 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:21,817 INFO L93 Difference]: Finished difference Result 738 states and 998 transitions. [2023-11-26 11:52:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2023-11-26 11:52:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:21,822 INFO L225 Difference]: With dead ends: 738 [2023-11-26 11:52:21,823 INFO L226 Difference]: Without dead ends: 737 [2023-11-26 11:52:21,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:21,824 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 527 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:21,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1197 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:52:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-26 11:52:21,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 688. [2023-11-26 11:52:21,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 597 states have (on average 1.4455611390284757) internal successors, (863), 649 states have internal predecessors, (863), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 923 transitions. [2023-11-26 11:52:21,882 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 923 transitions. Word has length 105 [2023-11-26 11:52:21,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:21,883 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 923 transitions. [2023-11-26 11:52:21,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 923 transitions. [2023-11-26 11:52:21,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:52:21,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:21,885 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:21,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:52:21,886 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:21,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1750160058, now seen corresponding path program 1 times [2023-11-26 11:52:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:21,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851710885] [2023-11-26 11:52:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:22,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:22,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851710885] [2023-11-26 11:52:22,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851710885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628776469] [2023-11-26 11:52:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:22,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:22,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:22,326 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:22,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:52:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:23,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:52:23,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:52:23,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:23,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628776469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:23,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:52:23,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-26 11:52:23,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024445338] [2023-11-26 11:52:23,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:23,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:52:23,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:23,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:52:23,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:52:23,291 INFO L87 Difference]: Start difference. First operand 688 states and 923 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:52:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:23,587 INFO L93 Difference]: Finished difference Result 1257 states and 1733 transitions. [2023-11-26 11:52:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:52:23,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 106 [2023-11-26 11:52:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:23,592 INFO L225 Difference]: With dead ends: 1257 [2023-11-26 11:52:23,592 INFO L226 Difference]: Without dead ends: 760 [2023-11-26 11:52:23,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:52:23,595 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 560 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:23,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1508 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-11-26 11:52:23,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 687. [2023-11-26 11:52:23,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 598 states have (on average 1.4381270903010033) internal successors, (860), 648 states have internal predecessors, (860), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 920 transitions. [2023-11-26 11:52:23,691 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 920 transitions. Word has length 106 [2023-11-26 11:52:23,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:23,692 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 920 transitions. [2023-11-26 11:52:23,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:52:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 920 transitions. [2023-11-26 11:52:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 11:52:23,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:23,694 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:23,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:23,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e16d457a-d480-45ab-8160-16d149c460ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:23,905 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:23,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1723397449, now seen corresponding path program 1 times [2023-11-26 11:52:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:23,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88762504] [2023-11-26 11:52:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-26 11:52:24,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:24,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88762504] [2023-11-26 11:52:24,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88762504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:24,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:24,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:52:24,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859790168] [2023-11-26 11:52:24,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:24,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:52:24,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:24,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:52:24,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:24,221 INFO L87 Difference]: Start difference. First operand 687 states and 920 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:25,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:25,025 INFO L93 Difference]: Finished difference Result 689 states and 923 transitions. [2023-11-26 11:52:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:52:25,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 108 [2023-11-26 11:52:25,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:25,030 INFO L225 Difference]: With dead ends: 689 [2023-11-26 11:52:25,030 INFO L226 Difference]: Without dead ends: 688 [2023-11-26 11:52:25,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:52:25,032 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 160 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:25,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1550 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 11:52:25,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-11-26 11:52:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 686. [2023-11-26 11:52:25,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 598 states have (on average 1.4364548494983278) internal successors, (859), 647 states have internal predecessors, (859), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:52:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 919 transitions. [2023-11-26 11:52:25,079 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 919 transitions. Word has length 108 [2023-11-26 11:52:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:25,079 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 919 transitions. [2023-11-26 11:52:25,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:52:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 919 transitions. [2023-11-26 11:52:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-26 11:52:25,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:25,081 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:25,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 11:52:25,082 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-26 11:52:25,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1885714408, now seen corresponding path program 1 times [2023-11-26 11:52:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533087598] [2023-11-26 11:52:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:25,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:52:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:52:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-26 11:52:25,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:25,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533087598] [2023-11-26 11:52:25,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533087598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:25,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:52:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934573419] [2023-11-26 11:52:25,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:25,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:52:25,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:25,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:52:25,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:52:25,809 INFO L87 Difference]: Start difference. First operand 686 states and 919 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)