./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.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_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/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_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/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_b2984c57-3ebd-4ecb-b177-83f3647d780a/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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:10:41,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:10:41,648 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:10:41,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:10:41,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:10:41,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:10:41,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:10:41,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:10:41,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:10:41,679 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:10:41,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:10:41,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:10:41,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:10:41,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:10:41,682 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:10:41,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:10:41,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:10:41,683 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:10:41,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:10:41,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:10:41,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:10:41,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:10:41,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:10:41,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:10:41,687 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:10:41,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:10:41,688 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:10:41,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:10:41,688 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:10:41,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:10:41,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:10:41,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:10:41,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:10:41,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:10:41,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:10:41,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:10:41,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:10:41,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:10:41,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:10:41,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:10:41,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:10:41,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:10:41,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:10:41,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:10:41,695 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_b2984c57-3ebd-4ecb-b177-83f3647d780a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2023-11-29 04:10:41,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:10:41,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:10:41,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:10:41,926 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:10:41,927 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:10:41,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-29 04:10:44,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:10:44,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:10:44,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-29 04:10:44,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/data/bc7e4903e/44eb33e8afc843efa076acf64a91f2d6/FLAG6dc5b1d34 [2023-11-29 04:10:44,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/data/bc7e4903e/44eb33e8afc843efa076acf64a91f2d6 [2023-11-29 04:10:44,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:10:44,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:10:44,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:10:44,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:10:45,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:10:45,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:10:44" (1/1) ... [2023-11-29 04:10:45,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61574a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45, skipping insertion in model container [2023-11-29 04:10:45,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:10:44" (1/1) ... [2023-11-29 04:10:45,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:10:45,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:10:45,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:10:45,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:10:45,740 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:10:45,748 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:10:45,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45 WrapperNode [2023-11-29 04:10:45,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:10:45,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:10:45,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:10:45,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:10:45,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:45,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:45,874 INFO L138 Inliner]: procedures = 177, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2218 [2023-11-29 04:10:45,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:10:45,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:10:45,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:10:45,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:10:45,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:45,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:45,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,080 INFO L175 MemorySlicer]: Split 453 memory accesses to 5 slices as follows [2, 417, 5, 5, 24]. 92 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 101 writes are split as follows [0, 98, 1, 1, 1]. [2023-11-29 04:10:46,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:10:46,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:10:46,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:10:46,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:10:46,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (1/1) ... [2023-11-29 04:10:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:10:46,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:46,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:10:46,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:10:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 04:10:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 04:10:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:10:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:10:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:10:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 04:10:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 04:10:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:10:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:10:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:10:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:10:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:10:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 04:10:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 04:10:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 04:10:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 04:10:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 04:10:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 04:10:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 04:10:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 04:10:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 04:10:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 04:10:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 04:10:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 04:10:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:10:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:10:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:10:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:10:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:10:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 04:10:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:10:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:10:46,529 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:10:46,530 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:10:48,595 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:10:48,656 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:10:48,656 INFO L309 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-29 04:10:48,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:10:48 BoogieIcfgContainer [2023-11-29 04:10:48,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:10:48,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:10:48,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:10:48,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:10:48,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:10:44" (1/3) ... [2023-11-29 04:10:48,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef74f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:10:48, skipping insertion in model container [2023-11-29 04:10:48,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:45" (2/3) ... [2023-11-29 04:10:48,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef74f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:10:48, skipping insertion in model container [2023-11-29 04:10:48,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:10:48" (3/3) ... [2023-11-29 04:10:48,666 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2023-11-29 04:10:48,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:10:48,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-29 04:10:48,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:10:48,755 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;@21f38880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:10:48,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-29 04:10:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 580 states, 553 states have (on average 1.7124773960217) internal successors, (947), 570 states have internal predecessors, (947), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:10:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 04:10:48,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:48,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 04:10:48,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:48,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:48,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1986901419, now seen corresponding path program 1 times [2023-11-29 04:10:48,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:48,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476109965] [2023-11-29 04:10:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:48,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:48,942 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 04:10:48,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:48,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476109965] [2023-11-29 04:10:48,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476109965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:48,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:48,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:48,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556493684] [2023-11-29 04:10:48,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:48,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:10:48,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:48,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:10:48,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:10:48,981 INFO L87 Difference]: Start difference. First operand has 580 states, 553 states have (on average 1.7124773960217) internal successors, (947), 570 states have internal predecessors, (947), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) 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 04:10:49,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:49,066 INFO L93 Difference]: Finished difference Result 1155 states and 1949 transitions. [2023-11-29 04:10:49,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:10:49,069 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) 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 04:10:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:49,084 INFO L225 Difference]: With dead ends: 1155 [2023-11-29 04:10:49,084 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 04:10:49,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:10:49,094 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:49,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 854 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:49,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 04:10:49,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2023-11-29 04:10:49,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 491 states have (on average 1.525458248472505) internal successors, (749), 503 states have internal predecessors, (749), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:10:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 771 transitions. [2023-11-29 04:10:49,162 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 771 transitions. Word has length 5 [2023-11-29 04:10:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:49,163 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 771 transitions. [2023-11-29 04:10:49,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) 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 04:10:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 771 transitions. [2023-11-29 04:10:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:10:49,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:49,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:10:49,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:10:49,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:49,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1518243630, now seen corresponding path program 1 times [2023-11-29 04:10:49,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:49,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525818085] [2023-11-29 04:10:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:49,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:49,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:49,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525818085] [2023-11-29 04:10:49,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 04:10:49,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500341472] [2023-11-29 04:10:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:49,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:49,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:49,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:49,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:10:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:49,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:10:49,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:49,474 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 04:10:49,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:49,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500341472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:49,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:49,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:49,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779081168] [2023-11-29 04:10:49,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:49,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:49,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:49,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:49,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:49,478 INFO L87 Difference]: Start difference. First operand 512 states and 771 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 04:10:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:49,574 INFO L93 Difference]: Finished difference Result 1174 states and 1779 transitions. [2023-11-29 04:10:49,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:49,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 04:10:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:49,582 INFO L225 Difference]: With dead ends: 1174 [2023-11-29 04:10:49,582 INFO L226 Difference]: Without dead ends: 1013 [2023-11-29 04:10:49,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:10:49,585 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 737 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:49,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1552 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2023-11-29 04:10:49,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 664. [2023-11-29 04:10:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 638 states have (on average 1.536050156739812) internal successors, (980), 655 states have internal predecessors, (980), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1012 transitions. [2023-11-29 04:10:49,621 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1012 transitions. Word has length 6 [2023-11-29 04:10:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:49,621 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 1012 transitions. [2023-11-29 04:10:49,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 04:10:49,621 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1012 transitions. [2023-11-29 04:10:49,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:10:49,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:49,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:10:49,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:10:49,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:49,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:49,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1476494570, now seen corresponding path program 1 times [2023-11-29 04:10:49,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:49,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517474816] [2023-11-29 04:10:49,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:49,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:49,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:49,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47239262] [2023-11-29 04:10:49,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:49,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:49,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:49,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:49,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:10:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:50,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:50,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:50,071 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 04:10:50,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:50,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:50,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517474816] [2023-11-29 04:10:50,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:50,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47239262] [2023-11-29 04:10:50,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47239262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:50,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:50,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:10:50,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902285120] [2023-11-29 04:10:50,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:50,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:50,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:50,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:50,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:50,074 INFO L87 Difference]: Start difference. First operand 664 states and 1012 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 04:10:50,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:50,159 INFO L93 Difference]: Finished difference Result 1014 states and 1532 transitions. [2023-11-29 04:10:50,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:50,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 04:10:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:50,167 INFO L225 Difference]: With dead ends: 1014 [2023-11-29 04:10:50,167 INFO L226 Difference]: Without dead ends: 1011 [2023-11-29 04:10:50,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:10:50,169 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 730 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:50,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1520 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-11-29 04:10:50,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 668. [2023-11-29 04:10:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 642 states have (on average 1.529595015576324) internal successors, (982), 659 states have internal predecessors, (982), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1014 transitions. [2023-11-29 04:10:50,200 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1014 transitions. Word has length 6 [2023-11-29 04:10:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:50,201 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1014 transitions. [2023-11-29 04:10:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 04:10:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1014 transitions. [2023-11-29 04:10:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:10:50,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:50,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:50,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:10:50,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:50,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:50,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1293079480, now seen corresponding path program 1 times [2023-11-29 04:10:50,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:50,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562585627] [2023-11-29 04:10:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:50,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:50,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:50,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093464175] [2023-11-29 04:10:50,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:50,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:50,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:50,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:50,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:10:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:50,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:50,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:50,991 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 04:10:50,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:50,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:50,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562585627] [2023-11-29 04:10:50,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:50,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093464175] [2023-11-29 04:10:50,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093464175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:50,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:50,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:10:50,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56556220] [2023-11-29 04:10:50,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:50,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:50,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:50,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:50,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:50,996 INFO L87 Difference]: Start difference. First operand 668 states and 1014 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 04:10:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:51,099 INFO L93 Difference]: Finished difference Result 1351 states and 2053 transitions. [2023-11-29 04:10:51,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:51,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2023-11-29 04:10:51,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:51,104 INFO L225 Difference]: With dead ends: 1351 [2023-11-29 04:10:51,104 INFO L226 Difference]: Without dead ends: 689 [2023-11-29 04:10:51,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 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 04:10:51,107 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 9 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:51,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1482 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:51,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-29 04:10:51,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 688. [2023-11-29 04:10:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 662 states have (on average 1.513595166163142) internal successors, (1002), 679 states have internal predecessors, (1002), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1034 transitions. [2023-11-29 04:10:51,131 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1034 transitions. Word has length 150 [2023-11-29 04:10:51,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:51,132 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 1034 transitions. [2023-11-29 04:10:51,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 04:10:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1034 transitions. [2023-11-29 04:10:51,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:10:51,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:51,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:51,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:10:51,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:51,338 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:51,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:51,339 INFO L85 PathProgramCache]: Analyzing trace with hash -858573882, now seen corresponding path program 1 times [2023-11-29 04:10:51,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:51,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855518630] [2023-11-29 04:10:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:51,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:51,456 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:51,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497541695] [2023-11-29 04:10:51,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:51,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:51,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:51,461 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:51,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:10:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:51,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:51,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:51,910 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 04:10:51,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:51,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:51,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855518630] [2023-11-29 04:10:51,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:51,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497541695] [2023-11-29 04:10:51,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497541695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:51,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:51,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:10:51,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592599729] [2023-11-29 04:10:51,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:51,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:51,914 INFO L87 Difference]: Start difference. First operand 688 states and 1034 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 04:10:52,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:52,007 INFO L93 Difference]: Finished difference Result 1391 states and 2093 transitions. [2023-11-29 04:10:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:52,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2023-11-29 04:10:52,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:52,014 INFO L225 Difference]: With dead ends: 1391 [2023-11-29 04:10:52,014 INFO L226 Difference]: Without dead ends: 709 [2023-11-29 04:10:52,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 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 04:10:52,016 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 9 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:52,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1482 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-11-29 04:10:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 708. [2023-11-29 04:10:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 682 states have (on average 1.498533724340176) internal successors, (1022), 699 states have internal predecessors, (1022), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1054 transitions. [2023-11-29 04:10:52,033 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1054 transitions. Word has length 150 [2023-11-29 04:10:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:52,033 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1054 transitions. [2023-11-29 04:10:52,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 04:10:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1054 transitions. [2023-11-29 04:10:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:10:52,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:52,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:10:52,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:52,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:52,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash -804180984, now seen corresponding path program 1 times [2023-11-29 04:10:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:52,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344468923] [2023-11-29 04:10:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:52,309 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:52,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997386862] [2023-11-29 04:10:52,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:52,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:52,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:52,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:10:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:52,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:52,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:52,771 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 04:10:52,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:52,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344468923] [2023-11-29 04:10:52,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997386862] [2023-11-29 04:10:52,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997386862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:52,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:52,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:10:52,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108263291] [2023-11-29 04:10:52,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:52,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:10:52,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:10:52,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:10:52,774 INFO L87 Difference]: Start difference. First operand 708 states and 1054 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 04:10:52,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:52,890 INFO L93 Difference]: Finished difference Result 1397 states and 2089 transitions. [2023-11-29 04:10:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:10:52,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 150 [2023-11-29 04:10:52,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:52,895 INFO L225 Difference]: With dead ends: 1397 [2023-11-29 04:10:52,895 INFO L226 Difference]: Without dead ends: 695 [2023-11-29 04:10:52,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 04:10:52,898 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 165 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:52,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2071 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:52,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-11-29 04:10:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 694. [2023-11-29 04:10:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 668 states have (on average 1.498502994011976) internal successors, (1001), 685 states have internal predecessors, (1001), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1033 transitions. [2023-11-29 04:10:52,924 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1033 transitions. Word has length 150 [2023-11-29 04:10:52,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:52,924 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 1033 transitions. [2023-11-29 04:10:52,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 04:10:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1033 transitions. [2023-11-29 04:10:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:10:52,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:52,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 04:10:53,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:10:53,129 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:53,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:53,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1607554326, now seen corresponding path program 1 times [2023-11-29 04:10:53,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:53,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472310463] [2023-11-29 04:10:53,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:53,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:53,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429192498] [2023-11-29 04:10:53,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:53,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:53,193 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:53,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:10:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:53,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:53,620 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 04:10:53,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:53,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472310463] [2023-11-29 04:10:53,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429192498] [2023-11-29 04:10:53,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429192498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:53,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:53,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:10:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225760310] [2023-11-29 04:10:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:53,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:10:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:53,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:10:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:10:53,624 INFO L87 Difference]: Start difference. First operand 694 states and 1033 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 04:10:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:53,716 INFO L93 Difference]: Finished difference Result 1369 states and 2047 transitions. [2023-11-29 04:10:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:10:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 150 [2023-11-29 04:10:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:53,721 INFO L225 Difference]: With dead ends: 1369 [2023-11-29 04:10:53,721 INFO L226 Difference]: Without dead ends: 681 [2023-11-29 04:10:53,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 04:10:53,723 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 165 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:53,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2050 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:53,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2023-11-29 04:10:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 680. [2023-11-29 04:10:53,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 654 states have (on average 1.4984709480122325) internal successors, (980), 671 states have internal predecessors, (980), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:53,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1012 transitions. [2023-11-29 04:10:53,743 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1012 transitions. Word has length 150 [2023-11-29 04:10:53,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:53,743 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1012 transitions. [2023-11-29 04:10:53,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 04:10:53,744 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1012 transitions. [2023-11-29 04:10:53,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:10:53,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:53,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:53,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:10:53,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:53,949 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:53,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:53,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1164333112, now seen corresponding path program 1 times [2023-11-29 04:10:53,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:53,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133750330] [2023-11-29 04:10:53,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:54,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:54,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523240971] [2023-11-29 04:10:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:54,021 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:54,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:10:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:54,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:54,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:54,698 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 04:10:54,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:54,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:54,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133750330] [2023-11-29 04:10:54,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:54,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523240971] [2023-11-29 04:10:54,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523240971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:54,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:54,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:54,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317066514] [2023-11-29 04:10:54,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:54,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:10:54,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:54,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:10:54,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:10:54,701 INFO L87 Difference]: Start difference. First operand 680 states and 1012 transitions. Second operand has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 04:10:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:54,774 INFO L93 Difference]: Finished difference Result 680 states and 1012 transitions. [2023-11-29 04:10:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:10:54,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2023-11-29 04:10:54,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:54,780 INFO L225 Difference]: With dead ends: 680 [2023-11-29 04:10:54,780 INFO L226 Difference]: Without dead ends: 678 [2023-11-29 04:10:54,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 04:10:54,781 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 578 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:54,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1486 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-29 04:10:54,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2023-11-29 04:10:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 654 states have (on average 1.4954128440366972) internal successors, (978), 669 states have internal predecessors, (978), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 04:10:54,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1010 transitions. [2023-11-29 04:10:54,817 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1010 transitions. Word has length 150 [2023-11-29 04:10:54,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:54,817 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 1010 transitions. [2023-11-29 04:10:54,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 04:10:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1010 transitions. [2023-11-29 04:10:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 04:10:54,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:54,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:54,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:10:55,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:55,021 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:55,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1734586600, now seen corresponding path program 1 times [2023-11-29 04:10:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310461499] [2023-11-29 04:10:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:55,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:55,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297593613] [2023-11-29 04:10:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:55,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:55,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:55,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:10:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:55,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:10:55,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:55,729 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 04:10:55,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:55,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:55,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310461499] [2023-11-29 04:10:55,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:55,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297593613] [2023-11-29 04:10:55,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297593613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:55,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:55,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:55,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957630999] [2023-11-29 04:10:55,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:55,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:10:55,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:55,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:10:55,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:10:55,732 INFO L87 Difference]: Start difference. First operand 678 states and 1010 transitions. Second operand has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 04:10:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:55,827 INFO L93 Difference]: Finished difference Result 1032 states and 1522 transitions. [2023-11-29 04:10:55,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:10:55,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2023-11-29 04:10:55,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:55,834 INFO L225 Difference]: With dead ends: 1032 [2023-11-29 04:10:55,835 INFO L226 Difference]: Without dead ends: 1031 [2023-11-29 04:10:55,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 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 04:10:55,836 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 571 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:55,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 2381 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:55,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2023-11-29 04:10:55,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1029. [2023-11-29 04:10:55,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 999 states have (on average 1.4784784784784786) internal successors, (1477), 1014 states have internal predecessors, (1477), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:10:55,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1521 transitions. [2023-11-29 04:10:55,875 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1521 transitions. Word has length 151 [2023-11-29 04:10:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:55,876 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1521 transitions. [2023-11-29 04:10:55,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 04:10:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1521 transitions. [2023-11-29 04:10:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 04:10:55,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:55,879 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:55,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:10:56,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:56,081 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:56,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:56,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1705417667, now seen corresponding path program 1 times [2023-11-29 04:10:56,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:56,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019242358] [2023-11-29 04:10:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:56,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:56,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:56,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644413595] [2023-11-29 04:10:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:56,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:56,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:56,156 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:56,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:10:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:56,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:10:56,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:56,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:56,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:56,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019242358] [2023-11-29 04:10:56,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:56,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644413595] [2023-11-29 04:10:56,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644413595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:56,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:56,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155148365] [2023-11-29 04:10:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:56,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:56,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:56,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:56,767 INFO L87 Difference]: Start difference. First operand 1029 states and 1521 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 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 04:10:56,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:56,859 INFO L93 Difference]: Finished difference Result 1926 states and 2848 transitions. [2023-11-29 04:10:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:56,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 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 156 [2023-11-29 04:10:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:56,866 INFO L225 Difference]: With dead ends: 1926 [2023-11-29 04:10:56,867 INFO L226 Difference]: Without dead ends: 1027 [2023-11-29 04:10:56,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 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 04:10:56,869 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 123 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:56,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1488 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2023-11-29 04:10:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2023-11-29 04:10:56,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 997 states have (on average 1.4784353059177533) internal successors, (1474), 1012 states have internal predecessors, (1474), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:10:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1518 transitions. [2023-11-29 04:10:56,903 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1518 transitions. Word has length 156 [2023-11-29 04:10:56,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:56,904 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1518 transitions. [2023-11-29 04:10:56,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 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 04:10:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1518 transitions. [2023-11-29 04:10:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 04:10:56,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:56,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:56,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:10:57,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:10:57,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:57,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:57,108 INFO L85 PathProgramCache]: Analyzing trace with hash 317648009, now seen corresponding path program 1 times [2023-11-29 04:10:57,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:57,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066949386] [2023-11-29 04:10:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:57,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:57,181 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:57,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509908897] [2023-11-29 04:10:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:57,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:57,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:57,182 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:57,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:10:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:57,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:10:57,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:10:58,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:58,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:58,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066949386] [2023-11-29 04:10:58,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:58,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509908897] [2023-11-29 04:10:58,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509908897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:58,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:58,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:10:58,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026043605] [2023-11-29 04:10:58,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:58,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:58,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:58,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:58,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:58,046 INFO L87 Difference]: Start difference. First operand 1027 states and 1518 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 04:10:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:58,178 INFO L93 Difference]: Finished difference Result 1904 states and 2834 transitions. [2023-11-29 04:10:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:58,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 169 [2023-11-29 04:10:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:58,189 INFO L225 Difference]: With dead ends: 1904 [2023-11-29 04:10:58,189 INFO L226 Difference]: Without dead ends: 1179 [2023-11-29 04:10:58,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 04:10:58,192 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 486 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:58,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1660 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2023-11-29 04:10:58,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1175. [2023-11-29 04:10:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1135 states have (on average 1.4916299559471367) internal successors, (1693), 1160 states have internal predecessors, (1693), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:10:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1757 transitions. [2023-11-29 04:10:58,248 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1757 transitions. Word has length 169 [2023-11-29 04:10:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:58,249 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1757 transitions. [2023-11-29 04:10:58,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 04:10:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1757 transitions. [2023-11-29 04:10:58,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-29 04:10:58,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:58,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:10:58,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:10:58,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 04:10:58,455 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:10:58,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:58,455 INFO L85 PathProgramCache]: Analyzing trace with hash 228200449, now seen corresponding path program 1 times [2023-11-29 04:10:58,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:58,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413762939] [2023-11-29 04:10:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:58,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:58,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:10:58,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842471911] [2023-11-29 04:10:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:58,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:58,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:58,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:58,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:10:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:59,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:10:59,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:10:59,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:10:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413762939] [2023-11-29 04:10:59,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:10:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842471911] [2023-11-29 04:10:59,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842471911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:59,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:59,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:10:59,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370347553] [2023-11-29 04:10:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:59,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:10:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:10:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:10:59,664 INFO L87 Difference]: Start difference. First operand 1175 states and 1757 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:00,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:00,064 INFO L93 Difference]: Finished difference Result 2348 states and 3499 transitions. [2023-11-29 04:11:00,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:11:00,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 182 [2023-11-29 04:11:00,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:00,072 INFO L225 Difference]: With dead ends: 2348 [2023-11-29 04:11:00,072 INFO L226 Difference]: Without dead ends: 1255 [2023-11-29 04:11:00,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:11:00,074 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 12 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:00,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3282 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:11:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-11-29 04:11:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1249. [2023-11-29 04:11:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1209 states have (on average 1.4731182795698925) internal successors, (1781), 1234 states have internal predecessors, (1781), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:11:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1845 transitions. [2023-11-29 04:11:00,107 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1845 transitions. Word has length 182 [2023-11-29 04:11:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:00,107 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1845 transitions. [2023-11-29 04:11:00,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1845 transitions. [2023-11-29 04:11:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-29 04:11:00,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:00,110 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:00,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:11:00,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 04:11:00,310 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:00,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1008369801, now seen corresponding path program 1 times [2023-11-29 04:11:00,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:00,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376359597] [2023-11-29 04:11:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:00,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:00,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:00,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399513481] [2023-11-29 04:11:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:00,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:00,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:00,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:00,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:11:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:00,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 04:11:00,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 04:11:01,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:01,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:01,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376359597] [2023-11-29 04:11:01,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:01,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399513481] [2023-11-29 04:11:01,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399513481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:01,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:01,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:11:01,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824340070] [2023-11-29 04:11:01,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:01,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:11:01,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:01,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:11:01,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:11:01,186 INFO L87 Difference]: Start difference. First operand 1249 states and 1845 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:01,884 INFO L93 Difference]: Finished difference Result 2293 states and 3388 transitions. [2023-11-29 04:11:01,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:11:01,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 183 [2023-11-29 04:11:01,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:01,893 INFO L225 Difference]: With dead ends: 2293 [2023-11-29 04:11:01,894 INFO L226 Difference]: Without dead ends: 1335 [2023-11-29 04:11:01,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:11:01,896 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 24 mSDsluCounter, 4407 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5137 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:01,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5137 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:11:01,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2023-11-29 04:11:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1323. [2023-11-29 04:11:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1283 states have (on average 1.4567420109119251) internal successors, (1869), 1308 states have internal predecessors, (1869), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:11:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1933 transitions. [2023-11-29 04:11:01,943 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1933 transitions. Word has length 183 [2023-11-29 04:11:01,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:01,944 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 1933 transitions. [2023-11-29 04:11:01,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1933 transitions. [2023-11-29 04:11:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-29 04:11:01,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:01,948 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:01,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 04:11:02,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:11:02,148 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:02,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash 473225475, now seen corresponding path program 1 times [2023-11-29 04:11:02,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:02,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126284299] [2023-11-29 04:11:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:02,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:02,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801953546] [2023-11-29 04:11:02,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:02,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:02,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:02,234 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:02,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:11:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:02,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:11:02,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:11:03,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:03,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:03,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126284299] [2023-11-29 04:11:03,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:03,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801953546] [2023-11-29 04:11:03,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801953546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:03,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:03,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:11:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577471531] [2023-11-29 04:11:03,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:03,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:11:03,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:03,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:11:03,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:11:03,082 INFO L87 Difference]: Start difference. First operand 1323 states and 1933 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:03,505 INFO L93 Difference]: Finished difference Result 2541 states and 3727 transitions. [2023-11-29 04:11:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:11:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2023-11-29 04:11:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:03,512 INFO L225 Difference]: With dead ends: 2541 [2023-11-29 04:11:03,512 INFO L226 Difference]: Without dead ends: 1345 [2023-11-29 04:11:03,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:11:03,515 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 17 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:03,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3867 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:11:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-11-29 04:11:03,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1339. [2023-11-29 04:11:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1299 states have (on average 1.4572748267898383) internal successors, (1893), 1324 states have internal predecessors, (1893), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:11:03,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1957 transitions. [2023-11-29 04:11:03,546 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1957 transitions. Word has length 184 [2023-11-29 04:11:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:03,546 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1957 transitions. [2023-11-29 04:11:03,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1957 transitions. [2023-11-29 04:11:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 04:11:03,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:03,548 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:03,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 04:11:03,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:11:03,749 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:03,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:03,749 INFO L85 PathProgramCache]: Analyzing trace with hash -660531548, now seen corresponding path program 1 times [2023-11-29 04:11:03,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:03,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675046131] [2023-11-29 04:11:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:03,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:03,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:03,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726777807] [2023-11-29 04:11:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:03,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:03,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:03,823 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:03,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:11:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:04,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:11:04,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 04:11:04,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:04,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675046131] [2023-11-29 04:11:04,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726777807] [2023-11-29 04:11:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726777807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:11:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023664849] [2023-11-29 04:11:04,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:04,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:11:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:11:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:11:04,637 INFO L87 Difference]: Start difference. First operand 1339 states and 1957 transitions. Second operand has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:05,633 INFO L93 Difference]: Finished difference Result 2362 states and 3476 transitions. [2023-11-29 04:11:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:11:05,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185 [2023-11-29 04:11:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:05,641 INFO L225 Difference]: With dead ends: 2362 [2023-11-29 04:11:05,641 INFO L226 Difference]: Without dead ends: 1367 [2023-11-29 04:11:05,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:11:05,644 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 34 mSDsluCounter, 6086 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 6802 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:05,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 6802 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:11:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2023-11-29 04:11:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1355. [2023-11-29 04:11:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1315 states have (on average 1.4577946768060837) internal successors, (1917), 1340 states have internal predecessors, (1917), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:11:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1981 transitions. [2023-11-29 04:11:05,699 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1981 transitions. Word has length 185 [2023-11-29 04:11:05,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:05,699 INFO L495 AbstractCegarLoop]: Abstraction has 1355 states and 1981 transitions. [2023-11-29 04:11:05,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:05,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1981 transitions. [2023-11-29 04:11:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 04:11:05,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:05,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:05,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:11:05,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:11:05,902 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:05,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1336006933, now seen corresponding path program 1 times [2023-11-29 04:11:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:05,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158526324] [2023-11-29 04:11:05,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:05,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:05,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:05,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566243303] [2023-11-29 04:11:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:05,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:05,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:05,992 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:05,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:11:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:06,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:11:06,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:11:06,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:06,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:06,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158526324] [2023-11-29 04:11:06,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:06,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566243303] [2023-11-29 04:11:06,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566243303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:06,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:06,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:11:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880609966] [2023-11-29 04:11:06,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:06,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:11:06,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:06,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:11:06,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:11:06,739 INFO L87 Difference]: Start difference. First operand 1355 states and 1981 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:07,162 INFO L93 Difference]: Finished difference Result 2599 states and 3810 transitions. [2023-11-29 04:11:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:11:07,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 186 [2023-11-29 04:11:07,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:07,168 INFO L225 Difference]: With dead ends: 2599 [2023-11-29 04:11:07,168 INFO L226 Difference]: Without dead ends: 1383 [2023-11-29 04:11:07,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:11:07,170 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 46 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:07,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3946 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:11:07,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2023-11-29 04:11:07,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1367. [2023-11-29 04:11:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1327 states have (on average 1.4581763376036172) internal successors, (1935), 1352 states have internal predecessors, (1935), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:11:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1999 transitions. [2023-11-29 04:11:07,208 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1999 transitions. Word has length 186 [2023-11-29 04:11:07,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:07,208 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1999 transitions. [2023-11-29 04:11:07,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:07,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1999 transitions. [2023-11-29 04:11:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 04:11:07,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:07,211 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:07,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 04:11:07,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:11:07,411 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:07,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2089603535, now seen corresponding path program 1 times [2023-11-29 04:11:07,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:07,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277436420] [2023-11-29 04:11:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:07,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:07,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171657286] [2023-11-29 04:11:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:07,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:07,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:07,498 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:07,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:11:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:08,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:11:08,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 04:11:08,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:08,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:08,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277436420] [2023-11-29 04:11:08,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:08,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171657286] [2023-11-29 04:11:08,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171657286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:08,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:08,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:11:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125626930] [2023-11-29 04:11:08,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:08,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:11:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:08,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:11:08,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:11:08,193 INFO L87 Difference]: Start difference. First operand 1367 states and 1999 transitions. Second operand has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:08,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:08,752 INFO L93 Difference]: Finished difference Result 2625 states and 3849 transitions. [2023-11-29 04:11:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:11:08,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186 [2023-11-29 04:11:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:08,761 INFO L225 Difference]: With dead ends: 2625 [2023-11-29 04:11:08,761 INFO L226 Difference]: Without dead ends: 1393 [2023-11-29 04:11:08,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:11:08,764 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 58 mSDsluCounter, 5356 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 6084 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:08,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 6084 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:11:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-11-29 04:11:08,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1367. [2023-11-29 04:11:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1327 states have (on average 1.455162019593067) internal successors, (1931), 1352 states have internal predecessors, (1931), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 04:11:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1995 transitions. [2023-11-29 04:11:08,806 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1995 transitions. Word has length 186 [2023-11-29 04:11:08,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:08,807 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1995 transitions. [2023-11-29 04:11:08,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1995 transitions. [2023-11-29 04:11:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 04:11:08,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:08,810 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:08,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 04:11:09,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:11:09,010 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:09,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2026889139, now seen corresponding path program 1 times [2023-11-29 04:11:09,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:09,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570412608] [2023-11-29 04:11:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:09,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:09,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:09,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47648570] [2023-11-29 04:11:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:09,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:09,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:09,111 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:09,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:11:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:10,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:11:10,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 04:11:10,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570412608] [2023-11-29 04:11:10,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47648570] [2023-11-29 04:11:10,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47648570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:10,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:10,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:11:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291183911] [2023-11-29 04:11:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:10,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:11:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:11:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:11:10,776 INFO L87 Difference]: Start difference. First operand 1367 states and 1995 transitions. Second operand has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:10,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:10,836 INFO L93 Difference]: Finished difference Result 2561 states and 3756 transitions. [2023-11-29 04:11:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:11:10,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186 [2023-11-29 04:11:10,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:10,846 INFO L225 Difference]: With dead ends: 2561 [2023-11-29 04:11:10,846 INFO L226 Difference]: Without dead ends: 1369 [2023-11-29 04:11:10,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 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 04:11:10,849 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 1 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:10,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2240 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:11:10,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2023-11-29 04:11:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1369. [2023-11-29 04:11:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1328 states have (on average 1.4555722891566265) internal successors, (1933), 1354 states have internal predecessors, (1933), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-29 04:11:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2001 transitions. [2023-11-29 04:11:10,884 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2001 transitions. Word has length 186 [2023-11-29 04:11:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:10,884 INFO L495 AbstractCegarLoop]: Abstraction has 1369 states and 2001 transitions. [2023-11-29 04:11:10,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:11:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2001 transitions. [2023-11-29 04:11:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-29 04:11:10,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:10,886 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:10,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 04:11:11,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:11:11,087 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:11,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:11,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1181056225, now seen corresponding path program 1 times [2023-11-29 04:11:11,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:11,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961963204] [2023-11-29 04:11:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:11,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:11,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:11,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397598822] [2023-11-29 04:11:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:11,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:11,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:11,160 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:11,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:11:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:11,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 04:11:11,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:11,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:11:12,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 04:11:12,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:11:12,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 26 [2023-11-29 04:11:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:11:12,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:12,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:12,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961963204] [2023-11-29 04:11:12,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:12,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397598822] [2023-11-29 04:11:12,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397598822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:12,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:12,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:11:12,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859632733] [2023-11-29 04:11:12,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:12,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:11:12,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:12,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:11:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:11:12,608 INFO L87 Difference]: Start difference. First operand 1369 states and 2001 transitions. Second operand has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 12 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:15,973 INFO L93 Difference]: Finished difference Result 2623 states and 3836 transitions. [2023-11-29 04:11:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:11:15,973 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 12 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190 [2023-11-29 04:11:15,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:15,980 INFO L225 Difference]: With dead ends: 2623 [2023-11-29 04:11:15,980 INFO L226 Difference]: Without dead ends: 1385 [2023-11-29 04:11:15,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:11:15,982 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 1270 mSDsluCounter, 6025 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 6711 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:15,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 6711 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:11:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2023-11-29 04:11:16,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1376. [2023-11-29 04:11:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1335 states have (on average 1.453183520599251) internal successors, (1940), 1361 states have internal predecessors, (1940), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-29 04:11:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 2008 transitions. [2023-11-29 04:11:16,013 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 2008 transitions. Word has length 190 [2023-11-29 04:11:16,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:16,013 INFO L495 AbstractCegarLoop]: Abstraction has 1376 states and 2008 transitions. [2023-11-29 04:11:16,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 12 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 2008 transitions. [2023-11-29 04:11:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-29 04:11:16,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:16,015 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:16,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 04:11:16,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:16,215 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:16,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:16,216 INFO L85 PathProgramCache]: Analyzing trace with hash 108747777, now seen corresponding path program 1 times [2023-11-29 04:11:16,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:16,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785671647] [2023-11-29 04:11:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:16,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:16,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:16,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32478692] [2023-11-29 04:11:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:16,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:16,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:16,305 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:16,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 04:11:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:18,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 165 conjunts are in the unsatisfiable core [2023-11-29 04:11:18,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:18,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:11:18,484 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:11:18,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:11:18,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:18,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785671647] [2023-11-29 04:11:18,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:11:18,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32478692] [2023-11-29 04:11:18,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32478692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:18,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:18,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:11:18,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955776047] [2023-11-29 04:11:18,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:18,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:11:18,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:18,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:11:18,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:11:18,487 INFO L87 Difference]: Start difference. First operand 1376 states and 2008 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:20,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:20,310 INFO L93 Difference]: Finished difference Result 3524 states and 5184 transitions. [2023-11-29 04:11:20,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:11:20,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190 [2023-11-29 04:11:20,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:11:20,323 INFO L225 Difference]: With dead ends: 3524 [2023-11-29 04:11:20,323 INFO L226 Difference]: Without dead ends: 2289 [2023-11-29 04:11:20,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:11:20,326 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 706 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:11:20,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 3317 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:11:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2023-11-29 04:11:20,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1382. [2023-11-29 04:11:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1341 states have (on average 1.4511558538404177) internal successors, (1946), 1367 states have internal predecessors, (1946), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-29 04:11:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 2014 transitions. [2023-11-29 04:11:20,389 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 2014 transitions. Word has length 190 [2023-11-29 04:11:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:11:20,390 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 2014 transitions. [2023-11-29 04:11:20,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:11:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 2014 transitions. [2023-11-29 04:11:20,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-29 04:11:20,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:11:20,393 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:11:20,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 04:11:20,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:20,593 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 04:11:20,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:20,594 INFO L85 PathProgramCache]: Analyzing trace with hash -502521281, now seen corresponding path program 1 times [2023-11-29 04:11:20,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:20,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394783378] [2023-11-29 04:11:20,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:20,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:20,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:11:20,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372900719] [2023-11-29 04:11:20,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:20,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:11:20,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:20,674 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:11:20,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2984c57-3ebd-4ecb-b177-83f3647d780a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 04:11:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:21,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 116 conjunts are in the unsatisfiable core [2023-11-29 04:11:21,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:21,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:11:21,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:11:21,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:11:21,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:11:22,007 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 04:11:22,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-29 04:11:22,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:11:22,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 04:11:22,218 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:11:22,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 04:11:22,225 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 16 treesize of output 1 [2023-11-29 04:11:27,817 INFO L224 Elim1Store]: Index analysis took 233 ms