./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya --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 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:07:36,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:07:36,595 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:07:36,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:07:36,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:07:36,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:07:36,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:07:36,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:07:36,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:07:36,625 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:07:36,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:07:36,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:07:36,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:07:36,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:07:36,628 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:07:36,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:07:36,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:07:36,630 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:07:36,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:07:36,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:07:36,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:07:36,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:07:36,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:07:36,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:07:36,633 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:07:36,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:07:36,634 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:07:36,635 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:07:36,635 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:07:36,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:07:36,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:07:36,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:07:36,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:07:36,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:07:36,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:07:36,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:07:36,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:07:36,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:07:36,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:07:36,639 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:07:36,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:07:36,639 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:07:36,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:07:36,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:07:36,640 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_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2023-11-29 00:07:36,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:07:36,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:07:36,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:07:36,899 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:07:36,900 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:07:36,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2023-11-29 00:07:39,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:07:40,079 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:07:40,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2023-11-29 00:07:40,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/data/020b086cf/10187da289554b9a9b1bdde736ff116a/FLAGaa6102f78 [2023-11-29 00:07:40,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/data/020b086cf/10187da289554b9a9b1bdde736ff116a [2023-11-29 00:07:40,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:07:40,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:07:40,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:07:40,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:07:40,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:07:40,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:40,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b6a74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40, skipping insertion in model container [2023-11-29 00:07:40,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:40,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:07:40,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:07:40,711 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:07:40,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:07:40,836 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:07:40,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40 WrapperNode [2023-11-29 00:07:40,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:07:40,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:07:40,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:07:40,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:07:40,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:40,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:40,925 INFO L138 Inliner]: procedures = 177, calls = 228, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 925 [2023-11-29 00:07:40,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:07:40,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:07:40,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:07:40,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:07:40,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:40,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:40,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,024 INFO L175 MemorySlicer]: Split 211 memory accesses to 3 slices as follows [2, 5, 204]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 51 writes are split as follows [0, 1, 50]. [2023-11-29 00:07:41,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:07:41,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:07:41,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:07:41,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:07:41,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (1/1) ... [2023-11-29 00:07:41,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:07:41,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:41,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:07:41,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:07:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:07:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:07:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:07:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:07:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:07:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:07:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:07:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:07:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:07:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:07:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:07:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:07:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:07:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:07:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:07:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:07:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:07:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:07:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:07:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:07:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:07:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:07:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:07:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:07:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:07:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:07:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:07:41,406 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:07:41,409 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:07:42,452 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:07:42,498 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:07:42,498 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-11-29 00:07:42,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:07:42 BoogieIcfgContainer [2023-11-29 00:07:42,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:07:42,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:07:42,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:07:42,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:07:42,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:07:40" (1/3) ... [2023-11-29 00:07:42,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6a2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:07:42, skipping insertion in model container [2023-11-29 00:07:42,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:40" (2/3) ... [2023-11-29 00:07:42,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6a2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:07:42, skipping insertion in model container [2023-11-29 00:07:42,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:07:42" (3/3) ... [2023-11-29 00:07:42,508 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-2.i [2023-11-29 00:07:42,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:07:42,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 00:07:42,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:07:42,596 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;@665d69be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:07:42,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 00:07:42,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 218 states have (on average 1.6972477064220184) internal successors, (370), 224 states have internal predecessors, (370), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:42,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 00:07:42,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:42,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:07:42,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:42,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:42,613 INFO L85 PathProgramCache]: Analyzing trace with hash 903059780, now seen corresponding path program 1 times [2023-11-29 00:07:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:42,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711388293] [2023-11-29 00:07:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:42,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:42,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:42,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711388293] [2023-11-29 00:07:42,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711388293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:42,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:42,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:07:42,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283866685] [2023-11-29 00:07:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:42,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:07:42,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:07:42,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:07:42,883 INFO L87 Difference]: Start difference. First operand has 229 states, 218 states have (on average 1.6972477064220184) internal successors, (370), 224 states have internal predecessors, (370), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 00:07:43,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:43,002 INFO L93 Difference]: Finished difference Result 636 states and 1052 transitions. [2023-11-29 00:07:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:07:43,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 00:07:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:43,019 INFO L225 Difference]: With dead ends: 636 [2023-11-29 00:07:43,019 INFO L226 Difference]: Without dead ends: 370 [2023-11-29 00:07:43,024 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 [2023-11-29 00:07:43,028 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 260 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:43,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 680 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:07:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-29 00:07:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 191. [2023-11-29 00:07:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 181 states have (on average 1.5082872928176796) internal successors, (273), 186 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 279 transitions. [2023-11-29 00:07:43,094 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 279 transitions. Word has length 5 [2023-11-29 00:07:43,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:43,094 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 279 transitions. [2023-11-29 00:07:43,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 00:07:43,095 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 279 transitions. [2023-11-29 00:07:43,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 00:07:43,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:43,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:07:43,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:07:43,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:43,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:43,097 INFO L85 PathProgramCache]: Analyzing trace with hash 902408182, now seen corresponding path program 1 times [2023-11-29 00:07:43,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:43,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250779905] [2023-11-29 00:07:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:43,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:43,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:43,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250779905] [2023-11-29 00:07:43,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250779905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:43,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:43,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:07:43,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128935914] [2023-11-29 00:07:43,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:43,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:07:43,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:43,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:07:43,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:07:43,304 INFO L87 Difference]: Start difference. First operand 191 states and 279 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 00:07:43,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:43,355 INFO L93 Difference]: Finished difference Result 197 states and 285 transitions. [2023-11-29 00:07:43,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:07:43,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-29 00:07:43,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:43,358 INFO L225 Difference]: With dead ends: 197 [2023-11-29 00:07:43,358 INFO L226 Difference]: Without dead ends: 196 [2023-11-29 00:07:43,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:07:43,360 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 2 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:43,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 807 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:07:43,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-29 00:07:43,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2023-11-29 00:07:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 184 states have (on average 1.5) internal successors, (276), 189 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 282 transitions. [2023-11-29 00:07:43,378 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 282 transitions. Word has length 5 [2023-11-29 00:07:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:43,379 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 282 transitions. [2023-11-29 00:07:43,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 00:07:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 282 transitions. [2023-11-29 00:07:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:07:43,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:43,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:07:43,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:07:43,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:43,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:43,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2090117355, now seen corresponding path program 1 times [2023-11-29 00:07:43,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:43,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24613104] [2023-11-29 00:07:43,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:43,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:43,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:43,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24613104] [2023-11-29 00:07:43,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24613104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:43,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:43,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:07:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543950575] [2023-11-29 00:07:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:43,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:07:43,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:43,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:07:43,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:07:43,502 INFO L87 Difference]: Start difference. First operand 194 states and 282 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:43,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:43,533 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2023-11-29 00:07:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:07:43,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 00:07:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:43,535 INFO L225 Difference]: With dead ends: 196 [2023-11-29 00:07:43,535 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 00:07:43,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:07:43,537 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:43,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:07:43,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 00:07:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-11-29 00:07:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.4972972972972973) internal successors, (277), 190 states have internal predecessors, (277), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 283 transitions. [2023-11-29 00:07:43,550 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 283 transitions. Word has length 6 [2023-11-29 00:07:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:43,551 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 283 transitions. [2023-11-29 00:07:43,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 283 transitions. [2023-11-29 00:07:43,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:07:43,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:43,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:43,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:07:43,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:43,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:43,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1393315929, now seen corresponding path program 1 times [2023-11-29 00:07:43,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:43,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911968230] [2023-11-29 00:07:43,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:43,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:43,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:43,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911968230] [2023-11-29 00:07:43,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911968230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:43,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:43,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:07:43,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566754159] [2023-11-29 00:07:43,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:43,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:07:43,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:43,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:07:43,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:07:43,917 INFO L87 Difference]: Start difference. First operand 195 states and 283 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2023-11-29 00:07:44,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:44,022 INFO L93 Difference]: Finished difference Result 388 states and 564 transitions. [2023-11-29 00:07:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:07:44,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2023-11-29 00:07:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:44,025 INFO L225 Difference]: With dead ends: 388 [2023-11-29 00:07:44,025 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 00:07:44,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:07:44,027 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 169 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:44,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 592 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:07:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 00:07:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2023-11-29 00:07:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.4594594594594594) internal successors, (270), 190 states have internal predecessors, (270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 276 transitions. [2023-11-29 00:07:44,040 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 276 transitions. Word has length 79 [2023-11-29 00:07:44,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:44,040 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 276 transitions. [2023-11-29 00:07:44,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2023-11-29 00:07:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 276 transitions. [2023-11-29 00:07:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:07:44,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:44,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:44,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:07:44,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:44,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:44,046 INFO L85 PathProgramCache]: Analyzing trace with hash -824176229, now seen corresponding path program 1 times [2023-11-29 00:07:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:44,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610036694] [2023-11-29 00:07:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:44,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610036694] [2023-11-29 00:07:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610036694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:44,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:44,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:07:44,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043582794] [2023-11-29 00:07:44,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:44,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:07:44,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:44,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:07:44,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:07:44,268 INFO L87 Difference]: Start difference. First operand 195 states and 276 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2023-11-29 00:07:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:44,336 INFO L93 Difference]: Finished difference Result 345 states and 480 transitions. [2023-11-29 00:07:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:07:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2023-11-29 00:07:44,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:44,339 INFO L225 Difference]: With dead ends: 345 [2023-11-29 00:07:44,339 INFO L226 Difference]: Without dead ends: 156 [2023-11-29 00:07:44,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:07:44,341 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 78 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:44,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 460 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:07:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-29 00:07:44,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-11-29 00:07:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 146 states have (on average 1.3630136986301369) internal successors, (199), 151 states have internal predecessors, (199), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:44,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2023-11-29 00:07:44,349 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 79 [2023-11-29 00:07:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:44,349 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2023-11-29 00:07:44,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2023-11-29 00:07:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2023-11-29 00:07:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:07:44,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:44,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:44,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:07:44,353 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:44,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1700195235, now seen corresponding path program 1 times [2023-11-29 00:07:44,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:44,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210980549] [2023-11-29 00:07:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:44,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:44,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:44,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210980549] [2023-11-29 00:07:44,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210980549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:44,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:44,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:07:44,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207656446] [2023-11-29 00:07:44,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:44,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:07:44,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:44,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:07:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:07:44,513 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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) [2023-11-29 00:07:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:44,582 INFO L93 Difference]: Finished difference Result 376 states and 502 transitions. [2023-11-29 00:07:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:07:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2023-11-29 00:07:44,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:44,586 INFO L225 Difference]: With dead ends: 376 [2023-11-29 00:07:44,586 INFO L226 Difference]: Without dead ends: 226 [2023-11-29 00:07:44,587 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 [2023-11-29 00:07:44,588 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 52 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:44,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 377 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:07:44,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-29 00:07:44,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2023-11-29 00:07:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 216 states have (on average 1.3703703703703705) internal successors, (296), 221 states have internal predecessors, (296), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2023-11-29 00:07:44,598 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 79 [2023-11-29 00:07:44,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:44,598 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2023-11-29 00:07:44,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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) [2023-11-29 00:07:44,599 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2023-11-29 00:07:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 00:07:44,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:44,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:44,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:07:44,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:44,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:44,602 INFO L85 PathProgramCache]: Analyzing trace with hash -182524790, now seen corresponding path program 1 times [2023-11-29 00:07:44,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:44,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901411479] [2023-11-29 00:07:44,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:44,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:44,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:44,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901411479] [2023-11-29 00:07:44,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901411479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:44,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:44,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:07:44,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568898582] [2023-11-29 00:07:44,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:44,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:07:44,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:07:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:07:44,863 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:07:45,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:45,139 INFO L93 Difference]: Finished difference Result 228 states and 307 transitions. [2023-11-29 00:07:45,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:07:45,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2023-11-29 00:07:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:45,143 INFO L225 Difference]: With dead ends: 228 [2023-11-29 00:07:45,143 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 00:07:45,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:07:45,145 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 111 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:45,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 523 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:07:45,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 00:07:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2023-11-29 00:07:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 216 states have (on average 1.3657407407407407) internal successors, (295), 220 states have internal predecessors, (295), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:07:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 301 transitions. [2023-11-29 00:07:45,158 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 301 transitions. Word has length 92 [2023-11-29 00:07:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:45,158 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 301 transitions. [2023-11-29 00:07:45,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:07:45,159 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 301 transitions. [2023-11-29 00:07:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 00:07:45,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:45,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:45,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:07:45,161 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:45,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:45,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1363300413, now seen corresponding path program 1 times [2023-11-29 00:07:45,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:45,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677099621] [2023-11-29 00:07:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:45,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677099621] [2023-11-29 00:07:45,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677099621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:45,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:45,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:07:45,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664118929] [2023-11-29 00:07:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:45,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:07:45,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:07:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:07:45,433 INFO L87 Difference]: Start difference. First operand 225 states and 301 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:07:45,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:45,725 INFO L93 Difference]: Finished difference Result 288 states and 390 transitions. [2023-11-29 00:07:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:07:45,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-29 00:07:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:45,729 INFO L225 Difference]: With dead ends: 288 [2023-11-29 00:07:45,729 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 00:07:45,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:07:45,730 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 96 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:45,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 714 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:07:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 00:07:45,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2023-11-29 00:07:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 273 states have (on average 1.3516483516483517) internal successors, (369), 277 states have internal predecessors, (369), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:07:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 381 transitions. [2023-11-29 00:07:45,748 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 381 transitions. Word has length 93 [2023-11-29 00:07:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:45,749 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 381 transitions. [2023-11-29 00:07:45,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:07:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 381 transitions. [2023-11-29 00:07:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 00:07:45,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:45,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:45,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:07:45,751 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:45,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:45,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1255003336, now seen corresponding path program 1 times [2023-11-29 00:07:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341362228] [2023-11-29 00:07:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:46,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341362228] [2023-11-29 00:07:46,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341362228] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:46,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391737652] [2023-11-29 00:07:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:46,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:46,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:07:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:46,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:07:46,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:46,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:46,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391737652] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:07:46,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:07:46,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 00:07:46,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11073820] [2023-11-29 00:07:46,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:07:46,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:07:46,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:46,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:07:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:07:46,850 INFO L87 Difference]: Start difference. First operand 285 states and 381 transitions. Second operand has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:47,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:47,225 INFO L93 Difference]: Finished difference Result 434 states and 589 transitions. [2023-11-29 00:07:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:07:47,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-29 00:07:47,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:47,229 INFO L225 Difference]: With dead ends: 434 [2023-11-29 00:07:47,230 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 00:07:47,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:07:47,231 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 457 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:47,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1429 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:07:47,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 00:07:47,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 423. [2023-11-29 00:07:47,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 408 states have (on average 1.3504901960784315) internal successors, (551), 412 states have internal predecessors, (551), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:07:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 569 transitions. [2023-11-29 00:07:47,253 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 569 transitions. Word has length 97 [2023-11-29 00:07:47,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:47,253 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 569 transitions. [2023-11-29 00:07:47,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 569 transitions. [2023-11-29 00:07:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 00:07:47,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:47,255 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:47,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:07:47,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:47,456 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:47,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:47,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1255654934, now seen corresponding path program 1 times [2023-11-29 00:07:47,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:47,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572105502] [2023-11-29 00:07:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:47,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:48,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:48,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572105502] [2023-11-29 00:07:48,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572105502] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:48,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777465140] [2023-11-29 00:07:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:48,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:48,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:48,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:48,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:07:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:48,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:07:48,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:48,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:49,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777465140] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:07:49,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:07:49,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-29 00:07:49,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188813413] [2023-11-29 00:07:49,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:07:49,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:07:49,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:49,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:07:49,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:07:49,028 INFO L87 Difference]: Start difference. First operand 423 states and 569 transitions. Second operand has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:49,661 INFO L93 Difference]: Finished difference Result 577 states and 784 transitions. [2023-11-29 00:07:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:07:49,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-29 00:07:49,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:49,667 INFO L225 Difference]: With dead ends: 577 [2023-11-29 00:07:49,667 INFO L226 Difference]: Without dead ends: 576 [2023-11-29 00:07:49,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:07:49,669 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 385 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:49,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 2149 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:07:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-29 00:07:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 563. [2023-11-29 00:07:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 545 states have (on average 1.348623853211009) internal successors, (735), 549 states have internal predecessors, (735), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:07:49,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 759 transitions. [2023-11-29 00:07:49,706 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 759 transitions. Word has length 97 [2023-11-29 00:07:49,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:49,707 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 759 transitions. [2023-11-29 00:07:49,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:49,707 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 759 transitions. [2023-11-29 00:07:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 00:07:49,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:49,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:49,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:07:49,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:49,909 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:49,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash -270597215, now seen corresponding path program 1 times [2023-11-29 00:07:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:49,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453099443] [2023-11-29 00:07:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:50,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:50,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453099443] [2023-11-29 00:07:50,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453099443] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:50,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779616016] [2023-11-29 00:07:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:50,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:50,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:50,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:50,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:07:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:50,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:07:50,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:51,191 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:51,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:51,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779616016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:07:51,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:07:51,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-29 00:07:51,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116359759] [2023-11-29 00:07:51,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:07:51,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:07:51,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:07:51,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:07:51,383 INFO L87 Difference]: Start difference. First operand 563 states and 759 transitions. Second operand has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:51,862 INFO L93 Difference]: Finished difference Result 574 states and 781 transitions. [2023-11-29 00:07:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:07:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 98 [2023-11-29 00:07:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:51,867 INFO L225 Difference]: With dead ends: 574 [2023-11-29 00:07:51,867 INFO L226 Difference]: Without dead ends: 573 [2023-11-29 00:07:51,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:07:51,868 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 577 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:51,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 2282 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:07:51,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-29 00:07:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 564. [2023-11-29 00:07:51,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 546 states have (on average 1.3443223443223444) internal successors, (734), 550 states have internal predecessors, (734), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:07:51,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 758 transitions. [2023-11-29 00:07:51,902 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 758 transitions. Word has length 98 [2023-11-29 00:07:51,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:51,902 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 758 transitions. [2023-11-29 00:07:51,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:51,903 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 758 transitions. [2023-11-29 00:07:51,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-29 00:07:51,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:51,907 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:51,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:07:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:52,108 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:52,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 915907235, now seen corresponding path program 1 times [2023-11-29 00:07:52,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:52,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949997456] [2023-11-29 00:07:52,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:52,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 00:07:52,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:52,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949997456] [2023-11-29 00:07:52,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949997456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:52,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:52,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:07:52,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135554739] [2023-11-29 00:07:52,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:52,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:07:52,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:52,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:07:52,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:07:52,651 INFO L87 Difference]: Start difference. First operand 564 states and 758 transitions. Second operand has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:07:52,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:52,942 INFO L93 Difference]: Finished difference Result 566 states and 772 transitions. [2023-11-29 00:07:52,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:07:52,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 251 [2023-11-29 00:07:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:52,948 INFO L225 Difference]: With dead ends: 566 [2023-11-29 00:07:52,948 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 00:07:52,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:07:52,949 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 106 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:52,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 531 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:07:52,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 00:07:52,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2023-11-29 00:07:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 546 states have (on average 1.3406593406593406) internal successors, (732), 549 states have internal predecessors, (732), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:07:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 756 transitions. [2023-11-29 00:07:52,984 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 756 transitions. Word has length 251 [2023-11-29 00:07:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:52,985 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 756 transitions. [2023-11-29 00:07:52,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:07:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 756 transitions. [2023-11-29 00:07:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 00:07:52,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:52,990 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:52,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:07:52,990 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:52,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:52,991 INFO L85 PathProgramCache]: Analyzing trace with hash 118992408, now seen corresponding path program 1 times [2023-11-29 00:07:52,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:52,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250140873] [2023-11-29 00:07:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:52,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:53,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:53,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250140873] [2023-11-29 00:07:53,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250140873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:53,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190380449] [2023-11-29 00:07:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:53,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:53,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:07:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:54,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:07:54,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:54,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190380449] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:07:55,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:07:55,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2023-11-29 00:07:55,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063731810] [2023-11-29 00:07:55,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:07:55,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:07:55,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:55,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:07:55,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:07:55,370 INFO L87 Difference]: Start difference. First operand 563 states and 756 transitions. Second operand has 17 states, 17 states have (on average 29.058823529411764) internal successors, (494), 16 states have internal predecessors, (494), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:56,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:56,028 INFO L93 Difference]: Finished difference Result 982 states and 1343 transitions. [2023-11-29 00:07:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:07:56,029 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 29.058823529411764) internal successors, (494), 16 states have internal predecessors, (494), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 255 [2023-11-29 00:07:56,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:56,037 INFO L225 Difference]: With dead ends: 982 [2023-11-29 00:07:56,037 INFO L226 Difference]: Without dead ends: 976 [2023-11-29 00:07:56,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:07:56,039 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1180 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:56,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 2718 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:07:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-29 00:07:56,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 970. [2023-11-29 00:07:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 944 states have (on average 1.3432203389830508) internal successors, (1268), 947 states have internal predecessors, (1268), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:07:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1310 transitions. [2023-11-29 00:07:56,090 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1310 transitions. Word has length 255 [2023-11-29 00:07:56,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:56,090 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1310 transitions. [2023-11-29 00:07:56,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 29.058823529411764) internal successors, (494), 16 states have internal predecessors, (494), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:07:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1310 transitions. [2023-11-29 00:07:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-29 00:07:56,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:56,098 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:56,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:07:56,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 00:07:56,299 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:07:56,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:56,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2123120989, now seen corresponding path program 1 times [2023-11-29 00:07:56,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:56,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818153284] [2023-11-29 00:07:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:56,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:59,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:07:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:59,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:07:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:07:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818153284] [2023-11-29 00:07:59,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818153284] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067633864] [2023-11-29 00:07:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:59,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:59,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:59,651 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:59,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:08:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:00,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:08:00,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:08:01,188 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:01,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:08:01,796 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:01,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067633864] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:08:01,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:08:01,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-29 00:08:01,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740761110] [2023-11-29 00:08:01,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:08:01,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 00:08:01,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:08:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 00:08:01,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:08:01,800 INFO L87 Difference]: Start difference. First operand 970 states and 1310 transitions. Second operand has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:08:02,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:08:02,676 INFO L93 Difference]: Finished difference Result 1412 states and 1930 transitions. [2023-11-29 00:08:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 00:08:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 334 [2023-11-29 00:08:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:08:02,689 INFO L225 Difference]: With dead ends: 1412 [2023-11-29 00:08:02,689 INFO L226 Difference]: Without dead ends: 1411 [2023-11-29 00:08:02,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1079, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 00:08:02,691 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 2384 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:08:02,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 3453 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:08:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2023-11-29 00:08:02,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1384. [2023-11-29 00:08:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1349 states have (on average 1.3432171979243885) internal successors, (1812), 1352 states have internal predecessors, (1812), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:08:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1872 transitions. [2023-11-29 00:08:02,758 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1872 transitions. Word has length 334 [2023-11-29 00:08:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:08:02,759 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1872 transitions. [2023-11-29 00:08:02,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:08:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1872 transitions. [2023-11-29 00:08:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-11-29 00:08:02,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:08:02,767 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:08:02,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:08:02,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 00:08:02,968 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:08:02,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:08:02,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1392241144, now seen corresponding path program 1 times [2023-11-29 00:08:02,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:08:02,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666279547] [2023-11-29 00:08:02,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:08:02,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:08:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:05,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:08:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:05,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:08:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:05,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:08:05,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666279547] [2023-11-29 00:08:05,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666279547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:08:05,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419841392] [2023-11-29 00:08:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:08:05,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:08:05,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:08:05,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:08:05,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:08:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:06,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 00:08:06,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:08:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:07,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:08:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:07,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419841392] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:08:07,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:08:07,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-29 00:08:07,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855435167] [2023-11-29 00:08:07,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:08:07,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 00:08:07,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:08:07,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 00:08:07,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:08:07,646 INFO L87 Difference]: Start difference. First operand 1384 states and 1872 transitions. Second operand has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:08:08,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:08:08,322 INFO L93 Difference]: Finished difference Result 1406 states and 1924 transitions. [2023-11-29 00:08:08,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 00:08:08,323 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 335 [2023-11-29 00:08:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:08:08,333 INFO L225 Difference]: With dead ends: 1406 [2023-11-29 00:08:08,333 INFO L226 Difference]: Without dead ends: 1405 [2023-11-29 00:08:08,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=782, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:08:08,335 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 2010 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:08:08,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 3531 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:08:08,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2023-11-29 00:08:08,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1385. [2023-11-29 00:08:08,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1350 states have (on average 1.3392592592592591) internal successors, (1808), 1353 states have internal predecessors, (1808), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:08:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1868 transitions. [2023-11-29 00:08:08,405 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1868 transitions. Word has length 335 [2023-11-29 00:08:08,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:08:08,406 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 1868 transitions. [2023-11-29 00:08:08,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:08:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1868 transitions. [2023-11-29 00:08:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2023-11-29 00:08:08,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:08:08,422 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:08:08,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:08:08,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:08:08,623 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:08:08,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:08:08,623 INFO L85 PathProgramCache]: Analyzing trace with hash -406463528, now seen corresponding path program 2 times [2023-11-29 00:08:08,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:08:08,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346010393] [2023-11-29 00:08:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:08:08,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:08:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:08:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:08:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:08:10,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:10,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:08:10,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346010393] [2023-11-29 00:08:10,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346010393] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:08:10,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265078272] [2023-11-29 00:08:10,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:08:10,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:08:10,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:08:10,586 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:08:10,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:08:11,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:08:11,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:08:11,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:08:11,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:08:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:12,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:08:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:08:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265078272] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:08:12,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:08:12,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 22 [2023-11-29 00:08:12,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661618335] [2023-11-29 00:08:12,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:08:12,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 00:08:12,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:08:12,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 00:08:12,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:08:12,802 INFO L87 Difference]: Start difference. First operand 1385 states and 1868 transitions. Second operand has 22 states, 22 states have (on average 33.36363636363637) internal successors, (734), 21 states have internal predecessors, (734), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:08:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:08:13,474 INFO L93 Difference]: Finished difference Result 1393 states and 1906 transitions. [2023-11-29 00:08:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:08:13,475 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 33.36363636363637) internal successors, (734), 21 states have internal predecessors, (734), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 571 [2023-11-29 00:08:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:08:13,485 INFO L225 Difference]: With dead ends: 1393 [2023-11-29 00:08:13,485 INFO L226 Difference]: Without dead ends: 1387 [2023-11-29 00:08:13,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1129 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:08:13,487 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 2040 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:08:13,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 3222 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:08:13,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2023-11-29 00:08:13,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1385. [2023-11-29 00:08:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1350 states have (on average 1.337037037037037) internal successors, (1805), 1353 states have internal predecessors, (1805), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:08:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1865 transitions. [2023-11-29 00:08:13,548 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1865 transitions. Word has length 571 [2023-11-29 00:08:13,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:08:13,549 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 1865 transitions. [2023-11-29 00:08:13,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 33.36363636363637) internal successors, (734), 21 states have internal predecessors, (734), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:08:13,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1865 transitions. [2023-11-29 00:08:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2023-11-29 00:08:13,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:08:13,580 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:08:13,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 00:08:13,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 00:08:13,781 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:08:13,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:08:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1023378257, now seen corresponding path program 3 times [2023-11-29 00:08:13,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:08:13,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206092740] [2023-11-29 00:08:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:08:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:13:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:13:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 514 proven. 2 refuted. 0 times theorem prover too weak. 3034 trivial. 0 not checked. [2023-11-29 00:13:21,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:21,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206092740] [2023-11-29 00:13:21,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206092740] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:13:21,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805973412] [2023-11-29 00:13:21,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:13:21,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:13:21,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:13:21,099 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:13:21,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:13:22,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:13:22,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:13:22,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 00:13:22,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:13:22,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 2903 trivial. 0 not checked. [2023-11-29 00:13:22,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:13:22,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805973412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:22,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:13:22,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2023-11-29 00:13:22,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792322627] [2023-11-29 00:13:22,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:22,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:13:22,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:22,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:13:22,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:13:22,314 INFO L87 Difference]: Start difference. First operand 1385 states and 1865 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:13:22,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:22,487 INFO L93 Difference]: Finished difference Result 2833 states and 3850 transitions. [2023-11-29 00:13:22,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:13:22,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 808 [2023-11-29 00:13:22,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:22,493 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 00:13:22,493 INFO L226 Difference]: Without dead ends: 1485 [2023-11-29 00:13:22,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 805 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:13:22,496 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 23 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:22,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 624 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:13:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-11-29 00:13:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1455. [2023-11-29 00:13:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1420 states have (on average 1.3274647887323943) internal successors, (1885), 1423 states have internal predecessors, (1885), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:13:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1945 transitions. [2023-11-29 00:13:22,558 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1945 transitions. Word has length 808 [2023-11-29 00:13:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:22,558 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1945 transitions. [2023-11-29 00:13:22,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:13:22,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1945 transitions. [2023-11-29 00:13:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2023-11-29 00:13:22,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:22,568 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:13:22,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:13:22,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 00:13:22,770 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:13:22,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash -213142287, now seen corresponding path program 1 times [2023-11-29 00:13:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:22,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091411799] [2023-11-29 00:13:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 00:13:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 00:13:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:24,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3595 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 3270 trivial. 0 not checked. [2023-11-29 00:13:24,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:24,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091411799] [2023-11-29 00:13:24,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091411799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:24,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:24,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:13:24,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302806625] [2023-11-29 00:13:24,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:24,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:13:24,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:13:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:13:24,728 INFO L87 Difference]: Start difference. First operand 1455 states and 1945 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:13:25,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:25,315 INFO L93 Difference]: Finished difference Result 2848 states and 3852 transitions. [2023-11-29 00:13:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:13:25,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 818 [2023-11-29 00:13:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:25,323 INFO L225 Difference]: With dead ends: 2848 [2023-11-29 00:13:25,323 INFO L226 Difference]: Without dead ends: 1437 [2023-11-29 00:13:25,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:13:25,326 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 10 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:25,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 787 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:13:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2023-11-29 00:13:25,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1425. [2023-11-29 00:13:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1390 states have (on average 1.3201438848920863) internal successors, (1835), 1393 states have internal predecessors, (1835), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:13:25,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1895 transitions. [2023-11-29 00:13:25,378 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1895 transitions. Word has length 818 [2023-11-29 00:13:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:25,378 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 1895 transitions. [2023-11-29 00:13:25,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:13:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1895 transitions. [2023-11-29 00:13:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2023-11-29 00:13:25,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:25,386 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:13:25,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 00:13:25,387 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:13:25,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:25,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1756358713, now seen corresponding path program 1 times [2023-11-29 00:13:25,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:25,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500462165] [2023-11-29 00:13:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:25,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:13:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 00:13:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 3297 trivial. 0 not checked. [2023-11-29 00:13:26,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500462165] [2023-11-29 00:13:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500462165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:26,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:26,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:13:26,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971224423] [2023-11-29 00:13:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:26,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:13:26,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:26,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:13:26,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:13:26,798 INFO L87 Difference]: Start difference. First operand 1425 states and 1895 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:13:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:27,172 INFO L93 Difference]: Finished difference Result 2848 states and 3834 transitions. [2023-11-29 00:13:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:13:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 828 [2023-11-29 00:13:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:27,180 INFO L225 Difference]: With dead ends: 2848 [2023-11-29 00:13:27,180 INFO L226 Difference]: Without dead ends: 1467 [2023-11-29 00:13:27,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:13:27,183 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 6 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:27,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 704 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:13:27,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2023-11-29 00:13:27,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1455. [2023-11-29 00:13:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1420 states have (on average 1.3133802816901408) internal successors, (1865), 1423 states have internal predecessors, (1865), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:13:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1925 transitions. [2023-11-29 00:13:27,226 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1925 transitions. Word has length 828 [2023-11-29 00:13:27,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:27,227 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1925 transitions. [2023-11-29 00:13:27,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:13:27,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1925 transitions. [2023-11-29 00:13:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2023-11-29 00:13:27,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:27,235 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:13:27,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 00:13:27,235 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:13:27,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:27,236 INFO L85 PathProgramCache]: Analyzing trace with hash -236457277, now seen corresponding path program 1 times [2023-11-29 00:13:27,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:27,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037980604] [2023-11-29 00:13:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:27,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:16:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:16:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:16:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 00:16:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:16:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 532 proven. 2 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2023-11-29 00:16:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037980604] [2023-11-29 00:16:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037980604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:16:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735835438] [2023-11-29 00:16:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:15,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:15,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:15,231 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:15,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:17:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:17:32,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 3871 conjuncts, 920 conjunts are in the unsatisfiable core [2023-11-29 00:17:32,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:17:32,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 00:17:32,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-11-29 00:17:33,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2023-11-29 00:17:33,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-11-29 00:17:33,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 00:17:33,191 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 00:17:33,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-29 00:17:33,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-29 00:17:33,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 00:17:33,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 00:17:33,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 00:17:33,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 00:17:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 3105 trivial. 0 not checked. [2023-11-29 00:17:33,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:17:33,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735835438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:17:33,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:17:33,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 15 [2023-11-29 00:17:33,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536273437] [2023-11-29 00:17:33,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:17:33,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:17:33,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:17:33,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:17:33,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:17:33,514 INFO L87 Difference]: Start difference. First operand 1455 states and 1925 transitions. Second operand has 12 states, 11 states have (on average 14.181818181818182) internal successors, (156), 10 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:17:36,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 00:17:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:17:37,636 INFO L93 Difference]: Finished difference Result 2827 states and 3741 transitions. [2023-11-29 00:17:37,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:17:37,637 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.181818181818182) internal successors, (156), 10 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 828 [2023-11-29 00:17:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:17:37,644 INFO L225 Difference]: With dead ends: 2827 [2023-11-29 00:17:37,644 INFO L226 Difference]: Without dead ends: 1457 [2023-11-29 00:17:37,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:17:37,647 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 124 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:17:37,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 957 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 00:17:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-11-29 00:17:37,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2023-11-29 00:17:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1422 states have (on average 1.3129395218002813) internal successors, (1867), 1424 states have internal predecessors, (1867), 30 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:17:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1927 transitions. [2023-11-29 00:17:37,705 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1927 transitions. Word has length 828 [2023-11-29 00:17:37,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:17:37,705 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1927 transitions. [2023-11-29 00:17:37,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.181818181818182) internal successors, (156), 10 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:17:37,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1927 transitions. [2023-11-29 00:17:37,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2023-11-29 00:17:37,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:17:37,716 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:17:37,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 00:17:37,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:17:37,916 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:17:37,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:17:37,917 INFO L85 PathProgramCache]: Analyzing trace with hash 37704033, now seen corresponding path program 1 times [2023-11-29 00:17:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:17:37,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797041531] [2023-11-29 00:17:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:17:37,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:19:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 00:19:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 532 proven. 4 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2023-11-29 00:19:54,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:54,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797041531] [2023-11-29 00:19:54,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797041531] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:19:54,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945224065] [2023-11-29 00:19:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:54,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:19:54,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:19:54,007 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:19:54,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:20:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:58,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 3886 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:20:58,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:20:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 534 proven. 1 refuted. 0 times theorem prover too weak. 3107 trivial. 0 not checked. [2023-11-29 00:20:58,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:20:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3642 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 3107 trivial. 0 not checked. [2023-11-29 00:20:59,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945224065] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:20:59,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:20:59,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 9 [2023-11-29 00:20:59,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379433042] [2023-11-29 00:20:59,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:59,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:20:59,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:59,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:20:59,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:20:59,032 INFO L87 Difference]: Start difference. First operand 1457 states and 1927 transitions. Second operand has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:20:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:20:59,084 INFO L93 Difference]: Finished difference Result 2827 states and 3760 transitions. [2023-11-29 00:20:59,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:20:59,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 829 [2023-11-29 00:20:59,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:20:59,092 INFO L225 Difference]: With dead ends: 2827 [2023-11-29 00:20:59,093 INFO L226 Difference]: Without dead ends: 1461 [2023-11-29 00:20:59,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1664 GetRequests, 1657 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:20:59,096 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 3 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:20:59,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 379 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:20:59,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-11-29 00:20:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2023-11-29 00:20:59,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1425 states have (on average 1.3136842105263158) internal successors, (1872), 1427 states have internal predecessors, (1872), 30 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2023-11-29 00:20:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1942 transitions. [2023-11-29 00:20:59,143 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1942 transitions. Word has length 829 [2023-11-29 00:20:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:20:59,144 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 1942 transitions. [2023-11-29 00:20:59,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:20:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1942 transitions. [2023-11-29 00:20:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2023-11-29 00:20:59,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:20:59,152 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:20:59,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 00:20:59,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b24d544c-8ebf-4951-b55b-4a8f59fda4db/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:20:59,353 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:20:59,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:59,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1771533005, now seen corresponding path program 2 times [2023-11-29 00:20:59,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:59,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960128485] [2023-11-29 00:20:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:59,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms