./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/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_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/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_e54611c7-7d5f-41e7-a902-6d6f649c1636/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 80f1df6d4bc7961b41bec7d16d328ef23e1639399b1fb3a18bcdda9891a98148 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:04:20,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:04:20,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:04:20,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:04:20,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:04:20,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:04:20,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:04:20,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:04:20,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:04:20,239 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:04:20,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:04:20,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:04:20,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:04:20,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:04:20,242 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:04:20,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:04:20,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:04:20,244 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:04:20,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:04:20,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:04:20,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:04:20,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:04:20,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:04:20,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:04:20,248 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:04:20,248 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:04:20,249 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:04:20,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:04:20,249 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:04:20,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:04:20,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:04:20,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:04:20,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:04:20,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:04:20,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:04:20,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:04:20,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:04:20,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:04:20,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:04:20,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:04:20,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:04:20,253 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:04:20,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:04:20,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:04:20,254 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_e54611c7-7d5f-41e7-a902-6d6f649c1636/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f1df6d4bc7961b41bec7d16d328ef23e1639399b1fb3a18bcdda9891a98148 [2023-11-29 03:04:20,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:04:20,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:04:20,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:04:20,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:04:20,494 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:04:20,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i [2023-11-29 03:04:23,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:04:23,515 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:04:23,516 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i [2023-11-29 03:04:23,534 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/data/573870d1f/478f71d79aef4ded9e29076bb11396c1/FLAG7403fb7f7 [2023-11-29 03:04:23,549 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/data/573870d1f/478f71d79aef4ded9e29076bb11396c1 [2023-11-29 03:04:23,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:04:23,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:04:23,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:04:23,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:04:23,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:04:23,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:23" (1/1) ... [2023-11-29 03:04:23,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b40ceb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23, skipping insertion in model container [2023-11-29 03:04:23,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:23" (1/1) ... [2023-11-29 03:04:23,621 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:04:24,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:04:24,119 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:04:24,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:04:24,262 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:04:24,269 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:04:24,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24 WrapperNode [2023-11-29 03:04:24,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:04:24,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:04:24,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:04:24,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:04:24,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,363 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1500 [2023-11-29 03:04:24,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:04:24,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:04:24,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:04:24,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:04:24,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,473 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [268, 2, 34, 5]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 63 writes are split as follows [58, 0, 4, 1]. [2023-11-29 03:04:24,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:04:24,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:04:24,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:04:24,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:04:24,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (1/1) ... [2023-11-29 03:04:24,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:04:24,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:24,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:04:24,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:04:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 03:04:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 03:04:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:04:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 03:04:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 03:04:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 03:04:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:04:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:04:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:04:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 03:04:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 03:04:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 03:04:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 03:04:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 03:04:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 03:04:24,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 03:04:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 03:04:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 03:04:24,632 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 03:04:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 03:04:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-29 03:04:24,633 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-29 03:04:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:04:24,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:04:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 03:04:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 03:04:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 03:04:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 03:04:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:04:24,634 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 03:04:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 03:04:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 03:04:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 03:04:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 03:04:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:04:24,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:04:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 03:04:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 03:04:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 03:04:24,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:04:24,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:04:24,854 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:04:24,856 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:04:26,438 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:04:26,490 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:04:26,490 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-11-29 03:04:26,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:26 BoogieIcfgContainer [2023-11-29 03:04:26,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:04:26,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:04:26,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:04:26,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:04:26,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:04:23" (1/3) ... [2023-11-29 03:04:26,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65967f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:26, skipping insertion in model container [2023-11-29 03:04:26,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:24" (2/3) ... [2023-11-29 03:04:26,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65967f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:26, skipping insertion in model container [2023-11-29 03:04:26,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:26" (3/3) ... [2023-11-29 03:04:26,500 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test8-2.i [2023-11-29 03:04:26,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:04:26,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 03:04:26,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:04:26,619 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;@686b1810, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:04:26,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 03:04:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 403 states have (on average 1.7096774193548387) internal successors, (689), 428 states have internal predecessors, (689), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 03:04:26,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:04:26,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:26,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:04:26,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:26,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:26,635 INFO L85 PathProgramCache]: Analyzing trace with hash 959732270, now seen corresponding path program 1 times [2023-11-29 03:04:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:26,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406877313] [2023-11-29 03:04:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:26,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:26,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406877313] [2023-11-29 03:04:26,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:04:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967797959] [2023-11-29 03:04:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:26,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:26,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:26,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:26,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:04:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:26,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:04:26,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:27,012 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 03:04:27,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967797959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:27,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:27,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:04:27,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505942070] [2023-11-29 03:04:27,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:27,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:04:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:27,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:04:27,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:04:27,052 INFO L87 Difference]: Start difference. First operand has 438 states, 403 states have (on average 1.7096774193548387) internal successors, (689), 428 states have internal predecessors, (689), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 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 03:04:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:27,138 INFO L93 Difference]: Finished difference Result 873 states and 1481 transitions. [2023-11-29 03:04:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:04:27,140 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 03:04:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:27,154 INFO L225 Difference]: With dead ends: 873 [2023-11-29 03:04:27,154 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 03:04:27,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 03:04:27,164 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:27,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 647 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:04:27,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 03:04:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2023-11-29 03:04:27,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 367 states have (on average 1.5286103542234333) internal successors, (561), 389 states have internal predecessors, (561), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:04:27,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 601 transitions. [2023-11-29 03:04:27,229 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 601 transitions. Word has length 6 [2023-11-29 03:04:27,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:27,229 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 601 transitions. [2023-11-29 03:04:27,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 03:04:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 601 transitions. [2023-11-29 03:04:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:04:27,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:27,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:04:27,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:27,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:04:27,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:27,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash 959734192, now seen corresponding path program 1 times [2023-11-29 03:04:27,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:27,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924911041] [2023-11-29 03:04:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:27,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:27,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:27,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559511166] [2023-11-29 03:04:27,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:27,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:27,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:27,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:27,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:04:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:27,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:04:27,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:27,689 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 03:04:27,718 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 03:04:27,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:27,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:27,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924911041] [2023-11-29 03:04:27,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:27,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559511166] [2023-11-29 03:04:27,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559511166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:27,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:27,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:04:27,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446289178] [2023-11-29 03:04:27,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:27,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:04:27,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:27,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:04:27,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:04:27,723 INFO L87 Difference]: Start difference. First operand 398 states and 601 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:27,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:27,890 INFO L93 Difference]: Finished difference Result 751 states and 1129 transitions. [2023-11-29 03:04:27,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:04:27,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 03:04:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:27,897 INFO L225 Difference]: With dead ends: 751 [2023-11-29 03:04:27,897 INFO L226 Difference]: Without dead ends: 749 [2023-11-29 03:04:27,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 03:04:27,899 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 511 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:27,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1720 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:27,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-29 03:04:27,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 404. [2023-11-29 03:04:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 373 states have (on average 1.522788203753351) internal successors, (568), 395 states have internal predecessors, (568), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:04:27,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 608 transitions. [2023-11-29 03:04:27,949 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 608 transitions. Word has length 6 [2023-11-29 03:04:27,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:27,950 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 608 transitions. [2023-11-29 03:04:27,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:27,950 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 608 transitions. [2023-11-29 03:04:27,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 03:04:27,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:27,955 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] [2023-11-29 03:04:27,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:04:28,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:28,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:28,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:28,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2055382953, now seen corresponding path program 1 times [2023-11-29 03:04:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:28,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155578140] [2023-11-29 03:04:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:28,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:28,533 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 03:04:28,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:28,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155578140] [2023-11-29 03:04:28,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155578140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:28,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:28,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:04:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039023764] [2023-11-29 03:04:28,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:28,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:04:28,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:28,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:04:28,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:04:28,537 INFO L87 Difference]: Start difference. First operand 404 states and 608 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:28,701 INFO L93 Difference]: Finished difference Result 959 states and 1451 transitions. [2023-11-29 03:04:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:04:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-11-29 03:04:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:28,707 INFO L225 Difference]: With dead ends: 959 [2023-11-29 03:04:28,708 INFO L226 Difference]: Without dead ends: 748 [2023-11-29 03:04:28,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:04:28,710 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 512 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:28,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1725 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-29 03:04:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 404. [2023-11-29 03:04:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 373 states have (on average 1.520107238605898) internal successors, (567), 395 states have internal predecessors, (567), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:04:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 607 transitions. [2023-11-29 03:04:28,732 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 607 transitions. Word has length 71 [2023-11-29 03:04:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:28,733 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 607 transitions. [2023-11-29 03:04:28,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 607 transitions. [2023-11-29 03:04:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 03:04:28,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:28,737 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] [2023-11-29 03:04:28,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:04:28,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:28,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:28,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1700485340, now seen corresponding path program 1 times [2023-11-29 03:04:28,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:28,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25512712] [2023-11-29 03:04:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:28,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:28,801 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:28,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994671945] [2023-11-29 03:04:28,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:28,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:28,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:28,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:28,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:04:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:29,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:04:29,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:29,130 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 03:04:29,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:29,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:29,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25512712] [2023-11-29 03:04:29,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:29,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994671945] [2023-11-29 03:04:29,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994671945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:29,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:29,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:04:29,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296608393] [2023-11-29 03:04:29,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:29,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:04:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:04:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:04:29,134 INFO L87 Difference]: Start difference. First operand 404 states and 607 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:29,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:29,226 INFO L93 Difference]: Finished difference Result 822 states and 1238 transitions. [2023-11-29 03:04:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:04:29,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-29 03:04:29,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:29,230 INFO L225 Difference]: With dead ends: 822 [2023-11-29 03:04:29,230 INFO L226 Difference]: Without dead ends: 425 [2023-11-29 03:04:29,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 03:04:29,232 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 9 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:29,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1140 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-29 03:04:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 424. [2023-11-29 03:04:29,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 393 states have (on average 1.4936386768447838) internal successors, (587), 415 states have internal predecessors, (587), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:04:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 627 transitions. [2023-11-29 03:04:29,250 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 627 transitions. Word has length 82 [2023-11-29 03:04:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:29,251 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 627 transitions. [2023-11-29 03:04:29,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:29,251 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 627 transitions. [2023-11-29 03:04:29,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 03:04:29,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:29,254 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] [2023-11-29 03:04:29,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:04:29,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-29 03:04:29,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:29,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:29,461 INFO L85 PathProgramCache]: Analyzing trace with hash 894112736, now seen corresponding path program 1 times [2023-11-29 03:04:29,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:29,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041917398] [2023-11-29 03:04:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:29,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:29,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:29,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868958801] [2023-11-29 03:04:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:29,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:29,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:29,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:29,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:04:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:29,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:04:29,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:29,793 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 03:04:29,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:29,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:29,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041917398] [2023-11-29 03:04:29,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:29,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868958801] [2023-11-29 03:04:29,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868958801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:29,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:29,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:04:29,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899586390] [2023-11-29 03:04:29,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:29,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:04:29,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:29,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:04:29,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:04:29,797 INFO L87 Difference]: Start difference. First operand 424 states and 627 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:29,894 INFO L93 Difference]: Finished difference Result 828 states and 1234 transitions. [2023-11-29 03:04:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:04:29,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-29 03:04:29,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:29,898 INFO L225 Difference]: With dead ends: 828 [2023-11-29 03:04:29,898 INFO L226 Difference]: Without dead ends: 411 [2023-11-29 03:04:29,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 03:04:29,900 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 165 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:29,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1558 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-11-29 03:04:29,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 410. [2023-11-29 03:04:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 379 states have (on average 1.4934036939313984) internal successors, (566), 401 states have internal predecessors, (566), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:04:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 606 transitions. [2023-11-29 03:04:29,918 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 606 transitions. Word has length 82 [2023-11-29 03:04:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:29,918 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 606 transitions. [2023-11-29 03:04:29,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 606 transitions. [2023-11-29 03:04:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 03:04:29,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:29,921 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] [2023-11-29 03:04:29,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:04:30,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:30,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:30,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash -9991662, now seen corresponding path program 1 times [2023-11-29 03:04:30,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:30,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753088561] [2023-11-29 03:04:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:30,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:30,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:30,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108453550] [2023-11-29 03:04:30,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:30,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:30,166 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:30,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:04:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:30,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:30,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:30,612 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 03:04:30,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:30,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:30,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753088561] [2023-11-29 03:04:30,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:30,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108453550] [2023-11-29 03:04:30,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108453550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:30,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:30,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:04:30,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921372385] [2023-11-29 03:04:30,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:30,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:04:30,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:30,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:04:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:04:30,616 INFO L87 Difference]: Start difference. First operand 410 states and 606 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:30,727 INFO L93 Difference]: Finished difference Result 410 states and 606 transitions. [2023-11-29 03:04:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:04:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-29 03:04:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:30,730 INFO L225 Difference]: With dead ends: 410 [2023-11-29 03:04:30,731 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 03:04:30,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 03:04:30,732 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 530 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:30,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1096 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 03:04:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-11-29 03:04:30,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 379 states have (on average 1.4907651715039578) internal successors, (565), 400 states have internal predecessors, (565), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:04:30,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 605 transitions. [2023-11-29 03:04:30,750 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 605 transitions. Word has length 82 [2023-11-29 03:04:30,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:30,751 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 605 transitions. [2023-11-29 03:04:30,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:30,751 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 605 transitions. [2023-11-29 03:04:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 03:04:30,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:30,753 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] [2023-11-29 03:04:30,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:30,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 03:04:30,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:30,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:30,954 INFO L85 PathProgramCache]: Analyzing trace with hash -309741449, now seen corresponding path program 1 times [2023-11-29 03:04:30,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:30,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152163296] [2023-11-29 03:04:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:30,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:30,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:30,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025044622] [2023-11-29 03:04:30,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:30,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:30,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:30,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:30,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:04:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:31,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:31,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:31,409 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 03:04:31,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:31,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152163296] [2023-11-29 03:04:31,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:31,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025044622] [2023-11-29 03:04:31,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025044622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:31,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:31,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:04:31,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917436720] [2023-11-29 03:04:31,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:31,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:04:31,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:04:31,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:04:31,413 INFO L87 Difference]: Start difference. First operand 409 states and 605 transitions. Second operand has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:31,510 INFO L93 Difference]: Finished difference Result 623 states and 930 transitions. [2023-11-29 03:04:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:04:31,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-11-29 03:04:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:31,518 INFO L225 Difference]: With dead ends: 623 [2023-11-29 03:04:31,518 INFO L226 Difference]: Without dead ends: 622 [2023-11-29 03:04:31,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 03:04:31,520 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 213 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:31,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1728 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-11-29 03:04:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 591. [2023-11-29 03:04:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 556 states have (on average 1.474820143884892) internal successors, (820), 577 states have internal predecessors, (820), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:04:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 868 transitions. [2023-11-29 03:04:31,547 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 868 transitions. Word has length 83 [2023-11-29 03:04:31,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:31,548 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 868 transitions. [2023-11-29 03:04:31,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:04:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 868 transitions. [2023-11-29 03:04:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 03:04:31,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:31,550 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] [2023-11-29 03:04:31,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:04:31,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:31,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:31,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:31,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1451537320, now seen corresponding path program 1 times [2023-11-29 03:04:31,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:31,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926332605] [2023-11-29 03:04:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:31,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:31,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:31,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200406550] [2023-11-29 03:04:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:31,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:31,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:31,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:31,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:04:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:32,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:32,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:32,323 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 03:04:32,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:32,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:32,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926332605] [2023-11-29 03:04:32,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:32,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200406550] [2023-11-29 03:04:32,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200406550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:32,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:32,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:04:32,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900686468] [2023-11-29 03:04:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:32,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:04:32,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:04:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:04:32,326 INFO L87 Difference]: Start difference. First operand 591 states and 868 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 03:04:32,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:32,457 INFO L93 Difference]: Finished difference Result 1197 states and 1767 transitions. [2023-11-29 03:04:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:04:32,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-29 03:04:32,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:32,463 INFO L225 Difference]: With dead ends: 1197 [2023-11-29 03:04:32,463 INFO L226 Difference]: Without dead ends: 737 [2023-11-29 03:04:32,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 03:04:32,465 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 343 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:32,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1315 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-29 03:04:32,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 734. [2023-11-29 03:04:32,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 698 states have (on average 1.488538681948424) internal successors, (1039), 719 states have internal predecessors, (1039), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 03:04:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1089 transitions. [2023-11-29 03:04:32,499 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1089 transitions. Word has length 93 [2023-11-29 03:04:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:32,499 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1089 transitions. [2023-11-29 03:04:32,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 03:04:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1089 transitions. [2023-11-29 03:04:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 03:04:32,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:32,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:04:32,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:32,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:32,702 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:32,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:32,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1174876875, now seen corresponding path program 1 times [2023-11-29 03:04:32,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:32,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116057523] [2023-11-29 03:04:32,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:32,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:32,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:32,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115212051] [2023-11-29 03:04:32,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:32,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:32,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:32,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:32,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:04:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:33,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:33,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:33,119 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 03:04:33,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 03:04:33,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:33,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:33,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116057523] [2023-11-29 03:04:33,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:33,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115212051] [2023-11-29 03:04:33,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115212051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:33,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:33,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:04:33,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534917825] [2023-11-29 03:04:33,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:33,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:04:33,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:33,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:04:33,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:04:33,379 INFO L87 Difference]: Start difference. First operand 734 states and 1089 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:04:33,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:33,645 INFO L93 Difference]: Finished difference Result 982 states and 1464 transitions. [2023-11-29 03:04:33,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:04:33,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 106 [2023-11-29 03:04:33,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:33,651 INFO L225 Difference]: With dead ends: 982 [2023-11-29 03:04:33,651 INFO L226 Difference]: Without dead ends: 981 [2023-11-29 03:04:33,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:04:33,652 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 479 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:33,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 2229 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:04:33,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2023-11-29 03:04:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 968. [2023-11-29 03:04:33,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 913 states have (on average 1.4950711938663745) internal successors, (1365), 950 states have internal predecessors, (1365), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 12 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:04:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1449 transitions. [2023-11-29 03:04:33,696 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1449 transitions. Word has length 106 [2023-11-29 03:04:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:33,697 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1449 transitions. [2023-11-29 03:04:33,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:04:33,697 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1449 transitions. [2023-11-29 03:04:33,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 03:04:33,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:33,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:04:33,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:04:33,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:33,902 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:33,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:33,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2061443858, now seen corresponding path program 1 times [2023-11-29 03:04:33,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:33,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783170620] [2023-11-29 03:04:33,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:33,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:33,954 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:33,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328643032] [2023-11-29 03:04:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:33,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:33,956 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:33,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:04:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:34,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:34,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:34,495 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 15 treesize of output 7 [2023-11-29 03:04:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 03:04:34,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:34,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783170620] [2023-11-29 03:04:34,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328643032] [2023-11-29 03:04:34,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328643032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:34,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:34,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:04:34,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232321677] [2023-11-29 03:04:34,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:34,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:04:34,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:34,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:04:34,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:04:34,508 INFO L87 Difference]: Start difference. First operand 968 states and 1449 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:04:34,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:34,841 INFO L93 Difference]: Finished difference Result 1018 states and 1529 transitions. [2023-11-29 03:04:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:04:34,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 107 [2023-11-29 03:04:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:34,849 INFO L225 Difference]: With dead ends: 1018 [2023-11-29 03:04:34,849 INFO L226 Difference]: Without dead ends: 1017 [2023-11-29 03:04:34,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:04:34,850 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 484 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:34,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 2228 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:04:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2023-11-29 03:04:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1006. [2023-11-29 03:04:34,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 935 states have (on average 1.4994652406417113) internal successors, (1402), 986 states have internal predecessors, (1402), 57 states have call successors, (57), 9 states have call predecessors, (57), 8 states have return successors, (57), 13 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 03:04:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1516 transitions. [2023-11-29 03:04:34,924 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1516 transitions. Word has length 107 [2023-11-29 03:04:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:34,924 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1516 transitions. [2023-11-29 03:04:34,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:04:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1516 transitions. [2023-11-29 03:04:34,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:04:34,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:34,927 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] [2023-11-29 03:04:34,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:04:35,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:35,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:35,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1190946266, now seen corresponding path program 1 times [2023-11-29 03:04:35,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:35,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777132972] [2023-11-29 03:04:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:35,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:35,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:35,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363360681] [2023-11-29 03:04:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:35,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:35,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:35,176 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:35,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:04:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:35,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:35,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:04:35,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:35,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777132972] [2023-11-29 03:04:35,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:35,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363360681] [2023-11-29 03:04:35,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363360681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:35,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:35,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:04:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408340592] [2023-11-29 03:04:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:35,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:04:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:35,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:04:35,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:04:35,666 INFO L87 Difference]: Start difference. First operand 1006 states and 1516 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:04:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:35,745 INFO L93 Difference]: Finished difference Result 1891 states and 2857 transitions. [2023-11-29 03:04:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:04:35,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 112 [2023-11-29 03:04:35,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:35,753 INFO L225 Difference]: With dead ends: 1891 [2023-11-29 03:04:35,753 INFO L226 Difference]: Without dead ends: 1010 [2023-11-29 03:04:35,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 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 03:04:35,756 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:35,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1754 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:04:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-11-29 03:04:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2023-11-29 03:04:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 937 states have (on average 1.5005336179295625) internal successors, (1406), 990 states have internal predecessors, (1406), 57 states have call successors, (57), 9 states have call predecessors, (57), 10 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:35,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1522 transitions. [2023-11-29 03:04:35,812 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1522 transitions. Word has length 112 [2023-11-29 03:04:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:35,813 INFO L495 AbstractCegarLoop]: Abstraction has 1010 states and 1522 transitions. [2023-11-29 03:04:35,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:04:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1522 transitions. [2023-11-29 03:04:35,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 03:04:35,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:35,815 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-11-29 03:04:35,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:04:36,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:04:36,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:36,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:36,026 INFO L85 PathProgramCache]: Analyzing trace with hash -788486866, now seen corresponding path program 1 times [2023-11-29 03:04:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:36,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744435271] [2023-11-29 03:04:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:36,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:36,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:36,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374840468] [2023-11-29 03:04:36,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:36,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:36,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:36,070 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:36,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:04:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:36,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 03:04:36,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:36,441 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 03:04:36,463 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 03:04:36,482 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 21 treesize of output 20 [2023-11-29 03:04:36,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:04:36,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 03:04:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:04:37,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:37,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:37,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744435271] [2023-11-29 03:04:37,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:37,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374840468] [2023-11-29 03:04:37,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374840468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:37,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:37,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:04:37,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746502276] [2023-11-29 03:04:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:37,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:04:37,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:37,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:04:37,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:04:37,006 INFO L87 Difference]: Start difference. First operand 1010 states and 1522 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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 03:04:40,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:40,146 INFO L93 Difference]: Finished difference Result 1989 states and 2988 transitions. [2023-11-29 03:04:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:04:40,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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 114 [2023-11-29 03:04:40,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:40,153 INFO L225 Difference]: With dead ends: 1989 [2023-11-29 03:04:40,153 INFO L226 Difference]: Without dead ends: 1062 [2023-11-29 03:04:40,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:04:40,156 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 762 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:40,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 3798 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 03:04:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-29 03:04:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1042. [2023-11-29 03:04:40,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 969 states have (on average 1.4891640866873066) internal successors, (1443), 1022 states have internal predecessors, (1443), 57 states have call successors, (57), 9 states have call predecessors, (57), 10 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1559 transitions. [2023-11-29 03:04:40,209 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1559 transitions. Word has length 114 [2023-11-29 03:04:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:40,209 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 1559 transitions. [2023-11-29 03:04:40,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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 03:04:40,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1559 transitions. [2023-11-29 03:04:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 03:04:40,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:40,212 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-11-29 03:04:40,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:04:40,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:04:40,412 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:40,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:40,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1783180564, now seen corresponding path program 1 times [2023-11-29 03:04:40,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:40,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685642510] [2023-11-29 03:04:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:40,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:40,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:40,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265487345] [2023-11-29 03:04:40,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:40,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:40,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:40,460 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:40,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:04:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:40,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:04:40,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:04:40,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:40,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:40,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685642510] [2023-11-29 03:04:40,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:40,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265487345] [2023-11-29 03:04:40,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265487345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:40,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:40,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:04:40,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148482575] [2023-11-29 03:04:40,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:40,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:04:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:04:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:04:40,861 INFO L87 Difference]: Start difference. First operand 1042 states and 1559 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 03:04:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:40,996 INFO L93 Difference]: Finished difference Result 2169 states and 3278 transitions. [2023-11-29 03:04:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:04:40,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 114 [2023-11-29 03:04:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:41,005 INFO L225 Difference]: With dead ends: 2169 [2023-11-29 03:04:41,005 INFO L226 Difference]: Without dead ends: 1230 [2023-11-29 03:04:41,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:04:41,008 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 145 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:41,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1835 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2023-11-29 03:04:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1065. [2023-11-29 03:04:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 992 states have (on average 1.4768145161290323) internal successors, (1465), 1045 states have internal predecessors, (1465), 57 states have call successors, (57), 9 states have call predecessors, (57), 10 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:41,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1581 transitions. [2023-11-29 03:04:41,101 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1581 transitions. Word has length 114 [2023-11-29 03:04:41,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:41,102 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1581 transitions. [2023-11-29 03:04:41,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 03:04:41,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1581 transitions. [2023-11-29 03:04:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 03:04:41,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:41,104 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-11-29 03:04:41,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:04:41,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:04:41,305 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:41,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:41,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1052678344, now seen corresponding path program 1 times [2023-11-29 03:04:41,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553588609] [2023-11-29 03:04:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:41,350 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:41,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709713358] [2023-11-29 03:04:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:41,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:41,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:41,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:41,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:04:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:41,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 03:04:41,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:41,726 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 03:04:41,747 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 03:04:41,764 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 21 treesize of output 20 [2023-11-29 03:04:42,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:04:42,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 03:04:42,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:04:42,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:42,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:42,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553588609] [2023-11-29 03:04:42,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:42,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709713358] [2023-11-29 03:04:42,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709713358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:42,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:42,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 03:04:42,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928960802] [2023-11-29 03:04:42,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:42,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:04:42,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:04:42,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:04:42,534 INFO L87 Difference]: Start difference. First operand 1065 states and 1581 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 13 states have internal predecessors, (104), 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 03:04:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:46,114 INFO L93 Difference]: Finished difference Result 2035 states and 3036 transitions. [2023-11-29 03:04:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:04:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 13 states have internal predecessors, (104), 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 115 [2023-11-29 03:04:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:46,122 INFO L225 Difference]: With dead ends: 2035 [2023-11-29 03:04:46,122 INFO L226 Difference]: Without dead ends: 1085 [2023-11-29 03:04:46,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:04:46,125 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 1038 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 5333 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:46,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 5333 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 03:04:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2023-11-29 03:04:46,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1067. [2023-11-29 03:04:46,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 994 states have (on average 1.4758551307847083) internal successors, (1467), 1047 states have internal predecessors, (1467), 57 states have call successors, (57), 9 states have call predecessors, (57), 10 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1583 transitions. [2023-11-29 03:04:46,180 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1583 transitions. Word has length 115 [2023-11-29 03:04:46,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:46,180 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 1583 transitions. [2023-11-29 03:04:46,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 13 states have internal predecessors, (104), 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 03:04:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1583 transitions. [2023-11-29 03:04:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 03:04:46,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:46,182 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-11-29 03:04:46,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:46,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:46,391 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:46,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash 188159541, now seen corresponding path program 1 times [2023-11-29 03:04:46,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:46,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135279018] [2023-11-29 03:04:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:46,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:46,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810813016] [2023-11-29 03:04:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:46,435 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:46,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:04:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:49,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:04:49,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:04:49,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:04:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:04:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135279018] [2023-11-29 03:04:49,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810813016] [2023-11-29 03:04:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810813016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:04:49,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:04:49,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:04:49,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20023085] [2023-11-29 03:04:49,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:04:49,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:04:49,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:49,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:04:49,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:04:49,301 INFO L87 Difference]: Start difference. First operand 1067 states and 1583 transitions. Second operand has 8 states, 6 states have (on average 20.0) internal successors, (120), 8 states have internal predecessors, (120), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:04:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:49,457 INFO L93 Difference]: Finished difference Result 1993 states and 2981 transitions. [2023-11-29 03:04:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:04:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.0) internal successors, (120), 8 states have internal predecessors, (120), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 116 [2023-11-29 03:04:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:49,465 INFO L225 Difference]: With dead ends: 1993 [2023-11-29 03:04:49,465 INFO L226 Difference]: Without dead ends: 1085 [2023-11-29 03:04:49,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:04:49,468 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 9 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:49,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2334 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:04:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2023-11-29 03:04:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1083. [2023-11-29 03:04:49,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1008 states have (on average 1.4811507936507937) internal successors, (1493), 1061 states have internal predecessors, (1493), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (61), 13 states have call predecessors, (61), 57 states have call successors, (61) [2023-11-29 03:04:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1611 transitions. [2023-11-29 03:04:49,519 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1611 transitions. Word has length 116 [2023-11-29 03:04:49,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:49,519 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1611 transitions. [2023-11-29 03:04:49,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.0) internal successors, (120), 8 states have internal predecessors, (120), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:04:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1611 transitions. [2023-11-29 03:04:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 03:04:49,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:49,522 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-29 03:04:49,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:49,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:04:49,722 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:49,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1846847565, now seen corresponding path program 2 times [2023-11-29 03:04:49,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659233260] [2023-11-29 03:04:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:49,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123437893] [2023-11-29 03:04:49,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:04:49,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:49,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:49,799 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:49,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:04:50,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:04:50,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:04:50,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:04:50,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:50,120 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 15 treesize of output 7 [2023-11-29 03:04:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 03:04:50,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:50,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:50,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659233260] [2023-11-29 03:04:50,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:50,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123437893] [2023-11-29 03:04:50,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123437893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:50,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:50,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:04:50,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205528501] [2023-11-29 03:04:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:50,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:04:50,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:04:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:04:50,126 INFO L87 Difference]: Start difference. First operand 1083 states and 1611 transitions. Second operand has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 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 03:04:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:50,160 INFO L93 Difference]: Finished difference Result 1083 states and 1611 transitions. [2023-11-29 03:04:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:04:50,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 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 120 [2023-11-29 03:04:50,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:50,168 INFO L225 Difference]: With dead ends: 1083 [2023-11-29 03:04:50,168 INFO L226 Difference]: Without dead ends: 1082 [2023-11-29 03:04:50,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 03:04:50,169 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 2 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:50,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1167 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:04:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-11-29 03:04:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1082. [2023-11-29 03:04:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1008 states have (on average 1.4801587301587302) internal successors, (1492), 1060 states have internal predecessors, (1492), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (61), 13 states have call predecessors, (61), 57 states have call successors, (61) [2023-11-29 03:04:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1610 transitions. [2023-11-29 03:04:50,217 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1610 transitions. Word has length 120 [2023-11-29 03:04:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:50,218 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1610 transitions. [2023-11-29 03:04:50,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 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 03:04:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1610 transitions. [2023-11-29 03:04:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 03:04:50,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:50,221 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 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] [2023-11-29 03:04:50,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:50,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:04:50,421 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:50,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:50,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1417699856, now seen corresponding path program 1 times [2023-11-29 03:04:50,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:50,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867467337] [2023-11-29 03:04:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:50,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:50,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718980144] [2023-11-29 03:04:50,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:50,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:50,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:50,476 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:50,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:04:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:04:51,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:04:51,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:04:51,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:04:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 03:04:51,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867467337] [2023-11-29 03:04:51,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718980144] [2023-11-29 03:04:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718980144] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:04:51,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:04:51,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-11-29 03:04:51,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680837033] [2023-11-29 03:04:51,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:04:51,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:04:51,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:04:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:04:51,183 INFO L87 Difference]: Start difference. First operand 1082 states and 1610 transitions. Second operand has 11 states, 9 states have (on average 14.11111111111111) internal successors, (127), 11 states have internal predecessors, (127), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:04:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:51,550 INFO L93 Difference]: Finished difference Result 1999 states and 2996 transitions. [2023-11-29 03:04:51,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:04:51,551 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 14.11111111111111) internal successors, (127), 11 states have internal predecessors, (127), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 121 [2023-11-29 03:04:51,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:51,557 INFO L225 Difference]: With dead ends: 1999 [2023-11-29 03:04:51,557 INFO L226 Difference]: Without dead ends: 961 [2023-11-29 03:04:51,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:04:51,560 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 102 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:51,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 2943 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:04:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2023-11-29 03:04:51,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 955. [2023-11-29 03:04:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 881 states have (on average 1.4801362088535754) internal successors, (1304), 933 states have internal predecessors, (1304), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1420 transitions. [2023-11-29 03:04:51,603 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1420 transitions. Word has length 121 [2023-11-29 03:04:51,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:51,604 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 1420 transitions. [2023-11-29 03:04:51,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 14.11111111111111) internal successors, (127), 11 states have internal predecessors, (127), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:04:51,604 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1420 transitions. [2023-11-29 03:04:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 03:04:51,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:51,606 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 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] [2023-11-29 03:04:51,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:04:51,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:04:51,807 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:51,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 584651728, now seen corresponding path program 2 times [2023-11-29 03:04:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:51,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611639670] [2023-11-29 03:04:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:51,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:51,852 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:51,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293620219] [2023-11-29 03:04:51,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:04:51,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:51,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:51,853 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:51,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:04:52,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:04:52,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:04:52,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:04:52,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 37 proven. 20 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 03:04:52,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:04:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 03:04:52,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611639670] [2023-11-29 03:04:52,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:52,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293620219] [2023-11-29 03:04:52,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293620219] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:04:52,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:04:52,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-11-29 03:04:52,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401095365] [2023-11-29 03:04:52,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:04:52,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:04:52,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:52,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:04:52,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:04:52,660 INFO L87 Difference]: Start difference. First operand 955 states and 1420 transitions. Second operand has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:04:53,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:53,368 INFO L93 Difference]: Finished difference Result 1838 states and 2747 transitions. [2023-11-29 03:04:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:04:53,369 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 125 [2023-11-29 03:04:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:53,374 INFO L225 Difference]: With dead ends: 1838 [2023-11-29 03:04:53,374 INFO L226 Difference]: Without dead ends: 971 [2023-11-29 03:04:53,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:04:53,376 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 111 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:53,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 3929 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:04:53,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-11-29 03:04:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 967. [2023-11-29 03:04:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 893 states have (on average 1.471444568868981) internal successors, (1314), 945 states have internal predecessors, (1314), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1430 transitions. [2023-11-29 03:04:53,406 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1430 transitions. Word has length 125 [2023-11-29 03:04:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:53,407 INFO L495 AbstractCegarLoop]: Abstraction has 967 states and 1430 transitions. [2023-11-29 03:04:53,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.923076923076923) internal successors, (129), 15 states have internal predecessors, (129), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:04:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1430 transitions. [2023-11-29 03:04:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 03:04:53,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:53,408 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 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] [2023-11-29 03:04:53,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 03:04:53,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:04:53,609 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:53,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:53,609 INFO L85 PathProgramCache]: Analyzing trace with hash 432606064, now seen corresponding path program 3 times [2023-11-29 03:04:53,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:53,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535855158] [2023-11-29 03:04:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:53,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:53,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:53,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719275858] [2023-11-29 03:04:53,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:04:53,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:53,668 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:53,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:04:58,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:04:58,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:04:58,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:04:58,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:04:59,016 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-11-29 03:04:59,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:04:59,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:04:59,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535855158] [2023-11-29 03:04:59,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:04:59,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719275858] [2023-11-29 03:04:59,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719275858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:04:59,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:04:59,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:04:59,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911268618] [2023-11-29 03:04:59,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:04:59,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:04:59,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:04:59,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:04:59,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:04:59,019 INFO L87 Difference]: Start difference. First operand 967 states and 1430 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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 03:04:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:04:59,385 INFO L93 Difference]: Finished difference Result 1892 states and 2817 transitions. [2023-11-29 03:04:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:04:59,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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 131 [2023-11-29 03:04:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:04:59,392 INFO L225 Difference]: With dead ends: 1892 [2023-11-29 03:04:59,392 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 03:04:59,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 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 03:04:59,395 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 16 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:04:59,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2730 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:04:59,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 03:04:59,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 975. [2023-11-29 03:04:59,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 901 states have (on average 1.4683684794672587) internal successors, (1323), 953 states have internal predecessors, (1323), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:04:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1439 transitions. [2023-11-29 03:04:59,447 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1439 transitions. Word has length 131 [2023-11-29 03:04:59,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:04:59,448 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1439 transitions. [2023-11-29 03:04:59,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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 03:04:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1439 transitions. [2023-11-29 03:04:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 03:04:59,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:04:59,450 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 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] [2023-11-29 03:04:59,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:04:59,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:59,651 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:04:59,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:04:59,651 INFO L85 PathProgramCache]: Analyzing trace with hash -249698498, now seen corresponding path program 1 times [2023-11-29 03:04:59,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:04:59,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767799186] [2023-11-29 03:04:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:59,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:04:59,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:04:59,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127695419] [2023-11-29 03:04:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:04:59,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:04:59,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:04:59,732 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:04:59,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:05:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:05:00,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:05:00,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:05:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-11-29 03:05:00,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:05:00,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:05:00,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767799186] [2023-11-29 03:05:00,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:05:00,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127695419] [2023-11-29 03:05:00,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127695419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:05:00,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:05:00,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:05:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854195878] [2023-11-29 03:05:00,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:05:00,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:05:00,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:05:00,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:05:00,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:05:00,299 INFO L87 Difference]: Start difference. First operand 975 states and 1439 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 03:05:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:05:00,559 INFO L93 Difference]: Finished difference Result 1905 states and 2828 transitions. [2023-11-29 03:05:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:05:00,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 132 [2023-11-29 03:05:00,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:05:00,565 INFO L225 Difference]: With dead ends: 1905 [2023-11-29 03:05:00,565 INFO L226 Difference]: Without dead ends: 990 [2023-11-29 03:05:00,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 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 03:05:00,568 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 45 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:05:00,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2742 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:05:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-11-29 03:05:00,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 979. [2023-11-29 03:05:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 905 states have (on average 1.4662983425414364) internal successors, (1327), 957 states have internal predecessors, (1327), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:05:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1443 transitions. [2023-11-29 03:05:00,616 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1443 transitions. Word has length 132 [2023-11-29 03:05:00,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:05:00,616 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1443 transitions. [2023-11-29 03:05:00,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 03:05:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1443 transitions. [2023-11-29 03:05:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 03:05:00,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:05:00,619 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 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] [2023-11-29 03:05:00,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:05:00,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:00,819 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:05:00,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:05:00,820 INFO L85 PathProgramCache]: Analyzing trace with hash -846159223, now seen corresponding path program 1 times [2023-11-29 03:05:00,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:05:00,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786952647] [2023-11-29 03:05:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:00,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:05:00,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:05:00,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30171222] [2023-11-29 03:05:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:00,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:05:00,887 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:05:00,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:05:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:05:01,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:05:01,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:05:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-11-29 03:05:01,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:05:01,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:05:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786952647] [2023-11-29 03:05:01,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:05:01,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30171222] [2023-11-29 03:05:01,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30171222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:05:01,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:05:01,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:05:01,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865622488] [2023-11-29 03:05:01,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:05:01,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:05:01,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:05:01,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:05:01,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:05:01,556 INFO L87 Difference]: Start difference. First operand 979 states and 1443 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 03:05:01,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:05:01,871 INFO L93 Difference]: Finished difference Result 1912 states and 2838 transitions. [2023-11-29 03:05:01,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:05:01,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 132 [2023-11-29 03:05:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:05:01,876 INFO L225 Difference]: With dead ends: 1912 [2023-11-29 03:05:01,877 INFO L226 Difference]: Without dead ends: 991 [2023-11-29 03:05:01,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 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 03:05:01,878 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 15 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:05:01,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2736 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:05:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-11-29 03:05:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 979. [2023-11-29 03:05:01,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 905 states have (on average 1.4662983425414364) internal successors, (1327), 957 states have internal predecessors, (1327), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:05:01,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1443 transitions. [2023-11-29 03:05:01,910 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1443 transitions. Word has length 132 [2023-11-29 03:05:01,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:05:01,910 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1443 transitions. [2023-11-29 03:05:01,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 03:05:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1443 transitions. [2023-11-29 03:05:01,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 03:05:01,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:05:01,911 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 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] [2023-11-29 03:05:01,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:05:02,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 03:05:02,112 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:05:02,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:05:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash -394955995, now seen corresponding path program 1 times [2023-11-29 03:05:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:05:02,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517551166] [2023-11-29 03:05:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:05:02,163 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:05:02,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179124275] [2023-11-29 03:05:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:02,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:02,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:05:02,165 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:05:02,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:05:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:05:03,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 03:05:03,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:05:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 85 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 03:05:03,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:05:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 6 proven. 99 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 03:05:03,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:05:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517551166] [2023-11-29 03:05:03,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:05:03,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179124275] [2023-11-29 03:05:03,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179124275] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:05:03,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:05:03,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 03:05:03,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746085314] [2023-11-29 03:05:03,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:05:03,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:05:03,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:05:03,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:05:03,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:05:03,505 INFO L87 Difference]: Start difference. First operand 979 states and 1443 transitions. Second operand has 18 states, 16 states have (on average 8.4375) internal successors, (135), 18 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:05:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:05:05,831 INFO L93 Difference]: Finished difference Result 1885 states and 2800 transitions. [2023-11-29 03:05:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 03:05:05,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.4375) internal successors, (135), 18 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 133 [2023-11-29 03:05:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:05:05,839 INFO L225 Difference]: With dead ends: 1885 [2023-11-29 03:05:05,839 INFO L226 Difference]: Without dead ends: 999 [2023-11-29 03:05:05,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=388, Invalid=734, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:05:05,842 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 14 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5129 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:05:05,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5129 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:05:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2023-11-29 03:05:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 995. [2023-11-29 03:05:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 921 states have (on average 1.4538545059717698) internal successors, (1339), 973 states have internal predecessors, (1339), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:05:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1455 transitions. [2023-11-29 03:05:05,891 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1455 transitions. Word has length 133 [2023-11-29 03:05:05,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:05:05,892 INFO L495 AbstractCegarLoop]: Abstraction has 995 states and 1455 transitions. [2023-11-29 03:05:05,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.4375) internal successors, (135), 18 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:05:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1455 transitions. [2023-11-29 03:05:05,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 03:05:05,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:05:05,895 INFO L195 NwaCegarLoop]: trace histogram [24, 2, 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] [2023-11-29 03:05:05,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:05:06,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:06,095 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:05:06,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:05:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1381306789, now seen corresponding path program 2 times [2023-11-29 03:05:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:05:06,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453301783] [2023-11-29 03:05:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:05:06,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:05:06,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075213560] [2023-11-29 03:05:06,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:05:06,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:06,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:05:06,166 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:05:06,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:05:08,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:05:08,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:05:08,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 03:05:08,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:05:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-29 03:05:08,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:05:08,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:05:08,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453301783] [2023-11-29 03:05:08,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:05:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075213560] [2023-11-29 03:05:08,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075213560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:05:08,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:05:08,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:05:08,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749626551] [2023-11-29 03:05:08,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:05:08,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:05:08,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:05:08,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:05:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:05:08,922 INFO L87 Difference]: Start difference. First operand 995 states and 1455 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 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 03:05:13,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:05:17,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 03:05:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:05:18,114 INFO L93 Difference]: Finished difference Result 1942 states and 2855 transitions. [2023-11-29 03:05:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:05:18,114 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 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 141 [2023-11-29 03:05:18,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:05:18,118 INFO L225 Difference]: With dead ends: 1942 [2023-11-29 03:05:18,119 INFO L226 Difference]: Without dead ends: 1005 [2023-11-29 03:05:18,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:05:18,121 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 14 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:05:18,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4523 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 03:05:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2023-11-29 03:05:18,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1001. [2023-11-29 03:05:18,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 927 states have (on average 1.4509169363538295) internal successors, (1345), 979 states have internal predecessors, (1345), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:05:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1461 transitions. [2023-11-29 03:05:18,196 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1461 transitions. Word has length 141 [2023-11-29 03:05:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:05:18,196 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1461 transitions. [2023-11-29 03:05:18,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 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 03:05:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1461 transitions. [2023-11-29 03:05:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 03:05:18,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:05:18,199 INFO L195 NwaCegarLoop]: trace histogram [24, 2, 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] [2023-11-29 03:05:18,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 03:05:18,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 03:05:18,399 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:05:18,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:05:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1337066103, now seen corresponding path program 1 times [2023-11-29 03:05:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:05:18,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502848696] [2023-11-29 03:05:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:18,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:05:18,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:05:18,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169963138] [2023-11-29 03:05:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:18,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:05:18,468 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:05:18,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:05:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:05:20,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 03:05:20,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:05:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 52 proven. 264 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 03:05:20,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:05:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 172 proven. 55 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 03:05:21,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:05:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502848696] [2023-11-29 03:05:21,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:05:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169963138] [2023-11-29 03:05:21,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169963138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:05:21,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:05:21,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-11-29 03:05:21,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372223481] [2023-11-29 03:05:21,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:05:21,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-29 03:05:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:05:21,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-29 03:05:21,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:05:21,663 INFO L87 Difference]: Start difference. First operand 1001 states and 1461 transitions. Second operand has 27 states, 25 states have (on average 5.68) internal successors, (142), 27 states have internal predecessors, (142), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:05:37,498 WARN L293 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:05:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:05:38,646 INFO L93 Difference]: Finished difference Result 1923 states and 2841 transitions. [2023-11-29 03:05:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 03:05:38,647 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.68) internal successors, (142), 27 states have internal predecessors, (142), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 141 [2023-11-29 03:05:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:05:38,651 INFO L225 Difference]: With dead ends: 1923 [2023-11-29 03:05:38,651 INFO L226 Difference]: Without dead ends: 1035 [2023-11-29 03:05:38,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=820, Invalid=1630, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 03:05:38,654 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 23 mSDsluCounter, 6660 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:05:38,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 7175 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 03:05:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-11-29 03:05:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1025. [2023-11-29 03:05:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 951 states have (on average 1.46267087276551) internal successors, (1391), 1003 states have internal predecessors, (1391), 57 states have call successors, (57), 11 states have call predecessors, (57), 12 states have return successors, (59), 13 states have call predecessors, (59), 57 states have call successors, (59) [2023-11-29 03:05:38,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1507 transitions. [2023-11-29 03:05:38,710 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1507 transitions. Word has length 141 [2023-11-29 03:05:38,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:05:38,710 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1507 transitions. [2023-11-29 03:05:38,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.68) internal successors, (142), 27 states have internal predecessors, (142), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 03:05:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1507 transitions. [2023-11-29 03:05:38,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 03:05:38,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:05:38,714 INFO L195 NwaCegarLoop]: trace histogram [36, 2, 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] [2023-11-29 03:05:38,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:05:38,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:38,914 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 03:05:38,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:05:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1315444919, now seen corresponding path program 2 times [2023-11-29 03:05:38,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:05:38,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033152835] [2023-11-29 03:05:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:05:38,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:05:38,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:05:38,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455253013] [2023-11-29 03:05:38,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:05:38,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:05:38,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:05:38,992 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:05:38,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54611c7-7d5f-41e7-a902-6d6f649c1636/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:05:42,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:05:42,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:05:42,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 346 conjunts are in the unsatisfiable core [2023-11-29 03:05:42,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:05:42,201 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 03:05:42,438 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 03:05:42,439 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 03:05:42,449 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 15 treesize of output 1 [2023-11-29 03:05:42,452 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 03:05:42,513 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 03:05:42,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 03:05:43,256 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 13 treesize of output 9 [2023-11-29 03:05:43,319 INFO L349 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-11-29 03:05:43,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 03:05:43,442 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 03:05:43,443 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 61 treesize of output 54 [2023-11-29 03:05:43,448 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 24 treesize of output 11 [2023-11-29 03:05:46,362 INFO L224 Elim1Store]: Index analysis took 104 ms [2023-11-29 03:07:37,932 WARN L293 SmtUtils]: Spent 1.82m on a formula simplification. DAG size of input: 57100 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 03:07:37,932 INFO L349 Elim1Store]: treesize reduction 1155438, result has 0.0 percent of original size [2023-11-29 03:07:38,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 240 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 289 new quantified variables, introduced 6828 case distinctions, treesize of input 7366061111 treesize of output 1906031082