./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/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_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/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_b4f31dab-2908-46da-94f4-41395bd3b127/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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:59:44,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:59:44,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:59:44,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:59:44,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:59:44,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:59:44,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:59:44,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:59:44,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:59:44,938 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:59:44,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:59:44,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:59:44,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:59:44,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:59:44,940 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:59:44,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:59:44,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:59:44,942 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:59:44,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:59:44,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:59:44,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:59:44,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:59:44,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:59:44,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:59:44,945 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:59:44,946 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:59:44,946 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:59:44,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:59:44,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:59:44,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:59:44,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:59:44,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:59:44,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:59:44,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:59:44,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:59:44,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:59:44,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:59:44,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:59:44,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:59:44,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:59:44,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:59:44,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:59:44,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:59:44,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:59:44,953 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_b4f31dab-2908-46da-94f4-41395bd3b127/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2023-11-29 06:59:45,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:59:45,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:59:45,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:59:45,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:59:45,215 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:59:45,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i [2023-11-29 06:59:47,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:59:48,193 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:59:48,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i [2023-11-29 06:59:48,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/data/95842f4a2/12a126aec67b49a0ba591a146e49c33a/FLAG076696e7d [2023-11-29 06:59:48,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/data/95842f4a2/12a126aec67b49a0ba591a146e49c33a [2023-11-29 06:59:48,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:59:48,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:59:48,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:59:48,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:59:48,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:59:48,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:48,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a07060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48, skipping insertion in model container [2023-11-29 06:59:48,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:48,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:59:48,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:59:48,786 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:59:48,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:59:48,915 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:59:48,922 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:59:48,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48 WrapperNode [2023-11-29 06:59:48,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:59:48,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:59:48,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:59:48,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:59:48,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:48,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,023 INFO L138 Inliner]: procedures = 177, calls = 333, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1514 [2023-11-29 06:59:49,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:59:49,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:59:49,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:59:49,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:59:49,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,183 INFO L175 MemorySlicer]: Split 307 memory accesses to 4 slices as follows [2, 5, 266, 34]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 1, 58, 4]. [2023-11-29 06:59:49,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,242 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:59:49,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:59:49,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:59:49,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:59:49,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (1/1) ... [2023-11-29 06:59:49,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:59:49,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:49,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:59:49,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:59:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:59:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:59:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:59:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:59:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:59:49,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:59:49,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 06:59:49,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 06:59:49,344 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 06:59:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 06:59:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 06:59:49,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 06:59:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:59:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:59:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:59:49,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:59:49,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:59:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:59:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:59:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:59:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:59:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:59:49,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:59:49,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:59:49,565 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:59:49,567 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:59:50,904 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:59:50,944 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:59:50,945 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-29 06:59:50,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:59:50 BoogieIcfgContainer [2023-11-29 06:59:50,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:59:50,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:59:50,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:59:50,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:59:50,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:59:48" (1/3) ... [2023-11-29 06:59:50,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12084798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:59:50, skipping insertion in model container [2023-11-29 06:59:50,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:48" (2/3) ... [2023-11-29 06:59:50,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12084798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:59:50, skipping insertion in model container [2023-11-29 06:59:50,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:59:50" (3/3) ... [2023-11-29 06:59:50,954 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test3-2.i [2023-11-29 06:59:50,969 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:59:50,969 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 06:59:51,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:59:51,028 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;@2e10f24c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:59:51,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 06:59:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 401 states, 387 states have (on average 1.702842377260982) internal successors, (659), 394 states have internal predecessors, (659), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 06:59:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 06:59:51,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:51,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:59:51,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:51,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:51,060 INFO L85 PathProgramCache]: Analyzing trace with hash 3057011, now seen corresponding path program 1 times [2023-11-29 06:59:51,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:51,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196095319] [2023-11-29 06:59:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:51,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:51,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:51,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196095319] [2023-11-29 06:59:51,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:59:51,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137618837] [2023-11-29 06:59:51,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:51,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:51,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:51,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:59:51,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:59:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:51,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:59:51,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:51,459 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 06:59:51,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:51,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137618837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:51,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:51,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:59:51,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133558493] [2023-11-29 06:59:51,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:51,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:59:51,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:59:51,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:59:51,502 INFO L87 Difference]: Start difference. First operand has 401 states, 387 states have (on average 1.702842377260982) internal successors, (659), 394 states have internal predecessors, (659), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:59:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:51,579 INFO L93 Difference]: Finished difference Result 799 states and 1336 transitions. [2023-11-29 06:59:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:59:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 06:59:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:51,593 INFO L225 Difference]: With dead ends: 799 [2023-11-29 06:59:51,594 INFO L226 Difference]: Without dead ends: 359 [2023-11-29 06:59:51,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 06:59:51,602 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:51,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 585 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:59:51,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-29 06:59:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-11-29 06:59:51,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 347 states have (on average 1.5129682997118155) internal successors, (525), 353 states have internal predecessors, (525), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 06:59:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2023-11-29 06:59:51,667 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 7 [2023-11-29 06:59:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:51,667 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2023-11-29 06:59:51,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:59:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2023-11-29 06:59:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 06:59:51,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:51,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:59:51,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:59:51,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:59:51,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:51,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:51,870 INFO L85 PathProgramCache]: Analyzing trace with hash 3058933, now seen corresponding path program 1 times [2023-11-29 06:59:51,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:51,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298848205] [2023-11-29 06:59:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:51,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:51,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:59:51,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761505167] [2023-11-29 06:59:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:51,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:51,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:51,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:59:51,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:59:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:52,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:59:52,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:52,145 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 06:59:52,174 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 06:59:52,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:52,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298848205] [2023-11-29 06:59:52,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:59:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761505167] [2023-11-29 06:59:52,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761505167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:52,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:52,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:59:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325359094] [2023-11-29 06:59:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:52,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:59:52,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:59:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:59:52,178 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:59:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:52,334 INFO L93 Difference]: Finished difference Result 709 states and 1058 transitions. [2023-11-29 06:59:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:59:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 06:59:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:52,340 INFO L225 Difference]: With dead ends: 709 [2023-11-29 06:59:52,340 INFO L226 Difference]: Without dead ends: 707 [2023-11-29 06:59:52,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:59:52,341 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 510 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:52,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1599 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:59:52,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-11-29 06:59:52,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 365. [2023-11-29 06:59:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 353 states have (on average 1.5070821529745042) internal successors, (532), 359 states have internal predecessors, (532), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 06:59:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 540 transitions. [2023-11-29 06:59:52,397 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 540 transitions. Word has length 7 [2023-11-29 06:59:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:52,398 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 540 transitions. [2023-11-29 06:59:52,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:59:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 540 transitions. [2023-11-29 06:59:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:59:52,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:52,403 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] [2023-11-29 06:59:52,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:59:52,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:52,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:52,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:52,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1097369912, now seen corresponding path program 1 times [2023-11-29 06:59:52,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:52,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872795581] [2023-11-29 06:59:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:52,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:52,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:59:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:52,905 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 06:59:52,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872795581] [2023-11-29 06:59:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872795581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:52,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:52,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:59:52,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171901351] [2023-11-29 06:59:52,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:52,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:59:52,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:59:52,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:59:52,909 INFO L87 Difference]: Start difference. First operand 365 states and 540 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:59:53,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:53,015 INFO L93 Difference]: Finished difference Result 541 states and 802 transitions. [2023-11-29 06:59:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:59:53,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-11-29 06:59:53,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:53,019 INFO L225 Difference]: With dead ends: 541 [2023-11-29 06:59:53,019 INFO L226 Difference]: Without dead ends: 369 [2023-11-29 06:59:53,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:59:53,021 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 165 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:53,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1360 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:59:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-29 06:59:53,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 365. [2023-11-29 06:59:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 353 states have (on average 1.4872521246458923) internal successors, (525), 359 states have internal predecessors, (525), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 06:59:53,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 533 transitions. [2023-11-29 06:59:53,039 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 533 transitions. Word has length 70 [2023-11-29 06:59:53,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:53,039 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 533 transitions. [2023-11-29 06:59:53,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:59:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 533 transitions. [2023-11-29 06:59:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:59:53,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:53,044 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] [2023-11-29 06:59:53,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:59:53,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:53,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1056381892, now seen corresponding path program 1 times [2023-11-29 06:59:53,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:53,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545310271] [2023-11-29 06:59:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:53,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:59:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:53,189 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 06:59:53,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545310271] [2023-11-29 06:59:53,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545310271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:53,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:53,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:59:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366636205] [2023-11-29 06:59:53,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:53,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:59:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:53,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:59:53,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:59:53,193 INFO L87 Difference]: Start difference. First operand 365 states and 533 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:59:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:53,229 INFO L93 Difference]: Finished difference Result 537 states and 784 transitions. [2023-11-29 06:59:53,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:59:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-11-29 06:59:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:53,233 INFO L225 Difference]: With dead ends: 537 [2023-11-29 06:59:53,233 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 06:59:53,234 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 06:59:53,235 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 2 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:53,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1560 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:59:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 06:59:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-11-29 06:59:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 350 states have (on average 1.4885714285714287) internal successors, (521), 355 states have internal predecessors, (521), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:59:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 527 transitions. [2023-11-29 06:59:53,249 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 527 transitions. Word has length 70 [2023-11-29 06:59:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:53,249 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 527 transitions. [2023-11-29 06:59:53,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:59:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 527 transitions. [2023-11-29 06:59:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 06:59:53,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:53,254 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] [2023-11-29 06:59:53,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:59:53,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:53,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1696454066, now seen corresponding path program 1 times [2023-11-29 06:59:53,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845003957] [2023-11-29 06:59:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:53,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:53,383 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 06:59:53,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:53,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845003957] [2023-11-29 06:59:53,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845003957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:53,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:53,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:59:53,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81157688] [2023-11-29 06:59:53,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:53,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:59:53,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:53,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:59:53,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:59:53,386 INFO L87 Difference]: Start difference. First operand 360 states and 527 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 06:59:53,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:53,426 INFO L93 Difference]: Finished difference Result 534 states and 780 transitions. [2023-11-29 06:59:53,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:59:53,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2023-11-29 06:59:53,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:53,429 INFO L225 Difference]: With dead ends: 534 [2023-11-29 06:59:53,430 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 06:59:53,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 06:59:53,431 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 14 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:53,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1010 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:59:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 06:59:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-11-29 06:59:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 350 states have (on average 1.477142857142857) internal successors, (517), 355 states have internal predecessors, (517), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:59:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 523 transitions. [2023-11-29 06:59:53,444 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 523 transitions. Word has length 71 [2023-11-29 06:59:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:53,444 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 523 transitions. [2023-11-29 06:59:53,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 06:59:53,445 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 523 transitions. [2023-11-29 06:59:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:59:53,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:53,446 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] [2023-11-29 06:59:53,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:59:53,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:53,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:53,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1712168216, now seen corresponding path program 1 times [2023-11-29 06:59:53,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:53,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167663574] [2023-11-29 06:59:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:53,501 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:59:53,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558804131] [2023-11-29 06:59:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:53,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:53,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:53,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:59:53,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:59:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:53,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:59:53,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:53,828 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 06:59:53,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:53,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167663574] [2023-11-29 06:59:53,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:59:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558804131] [2023-11-29 06:59:53,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558804131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:53,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:53,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:59:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009326367] [2023-11-29 06:59:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:53,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:59:53,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:53,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:59:53,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:59:53,832 INFO L87 Difference]: Start difference. First operand 360 states and 523 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 06:59:53,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:53,919 INFO L93 Difference]: Finished difference Result 733 states and 1068 transitions. [2023-11-29 06:59:53,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:59:53,920 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), 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 81 [2023-11-29 06:59:53,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:53,922 INFO L225 Difference]: With dead ends: 733 [2023-11-29 06:59:53,922 INFO L226 Difference]: Without dead ends: 381 [2023-11-29 06:59:53,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 06:59:53,924 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 9 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:53,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 974 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:59:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-29 06:59:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 380. [2023-11-29 06:59:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 370 states have (on average 1.4513513513513514) internal successors, (537), 375 states have internal predecessors, (537), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:59:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 543 transitions. [2023-11-29 06:59:53,938 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 543 transitions. Word has length 81 [2023-11-29 06:59:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:53,938 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 543 transitions. [2023-11-29 06:59:53,939 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), 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 06:59:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 543 transitions. [2023-11-29 06:59:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:59:53,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:53,940 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] [2023-11-29 06:59:53,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:59:54,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:54,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:54,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2145897302, now seen corresponding path program 1 times [2023-11-29 06:59:54,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:54,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877334987] [2023-11-29 06:59:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:54,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:54,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:59:54,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152906864] [2023-11-29 06:59:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:54,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:54,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:54,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:59:54,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:59:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:54,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:59:54,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:54,533 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 06:59:54,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:54,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877334987] [2023-11-29 06:59:54,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:59:54,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152906864] [2023-11-29 06:59:54,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152906864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:54,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:54,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:59:54,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445992885] [2023-11-29 06:59:54,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:54,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:59:54,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:54,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:59:54,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:59:54,537 INFO L87 Difference]: Start difference. First operand 380 states and 543 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 06:59:54,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:54,617 INFO L93 Difference]: Finished difference Result 739 states and 1064 transitions. [2023-11-29 06:59:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:59:54,619 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), 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 81 [2023-11-29 06:59:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:54,622 INFO L225 Difference]: With dead ends: 739 [2023-11-29 06:59:54,622 INFO L226 Difference]: Without dead ends: 367 [2023-11-29 06:59:54,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 06:59:54,623 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 165 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:54,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1309 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:59:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-29 06:59:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 366. [2023-11-29 06:59:54,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 356 states have (on average 1.449438202247191) internal successors, (516), 361 states have internal predecessors, (516), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:59:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 522 transitions. [2023-11-29 06:59:54,633 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 522 transitions. Word has length 81 [2023-11-29 06:59:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:54,634 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 522 transitions. [2023-11-29 06:59:54,634 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), 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 06:59:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 522 transitions. [2023-11-29 06:59:54,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:59:54,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:54,636 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] [2023-11-29 06:59:54,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 06:59:54,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:54,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:54,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:54,838 INFO L85 PathProgramCache]: Analyzing trace with hash -622817444, now seen corresponding path program 1 times [2023-11-29 06:59:54,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:54,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394528475] [2023-11-29 06:59:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:54,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:54,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:59:54,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613983846] [2023-11-29 06:59:54,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:54,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:54,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:54,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:59:54,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:59:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:55,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:59:55,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:55,449 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 06:59:55,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:55,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:55,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394528475] [2023-11-29 06:59:55,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:59:55,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613983846] [2023-11-29 06:59:55,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613983846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:55,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:55,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:59:55,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906673326] [2023-11-29 06:59:55,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:55,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:59:55,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:55,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:59:55,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:59:55,453 INFO L87 Difference]: Start difference. First operand 366 states and 522 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 06:59:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:59:55,561 INFO L93 Difference]: Finished difference Result 959 states and 1389 transitions. [2023-11-29 06:59:55,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:59:55,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2023-11-29 06:59:55,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:59:55,565 INFO L225 Difference]: With dead ends: 959 [2023-11-29 06:59:55,565 INFO L226 Difference]: Without dead ends: 489 [2023-11-29 06:59:55,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 06:59:55,567 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 302 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:59:55,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 983 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:59:55,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-29 06:59:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 487. [2023-11-29 06:59:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 477 states have (on average 1.4591194968553458) internal successors, (696), 482 states have internal predecessors, (696), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:59:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 702 transitions. [2023-11-29 06:59:55,585 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 702 transitions. Word has length 81 [2023-11-29 06:59:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:59:55,585 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 702 transitions. [2023-11-29 06:59:55,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 06:59:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 702 transitions. [2023-11-29 06:59:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:59:55,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:59:55,586 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] [2023-11-29 06:59:55,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:59:55,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:55,787 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:59:55,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:59:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1542100021, now seen corresponding path program 1 times [2023-11-29 06:59:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:59:55,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763970623] [2023-11-29 06:59:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:55,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:59:55,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:59:55,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825377142] [2023-11-29 06:59:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:59:55,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:59:55,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:59:55,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:59:55,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:59:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:59:56,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:59:56,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:59:56,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 06:59:56,397 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 06:59:56,405 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 06:59:56,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:59:56,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:59:56,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763970623] [2023-11-29 06:59:56,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:59:56,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825377142] [2023-11-29 06:59:56,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825377142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:59:56,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:59:56,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:59:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881882421] [2023-11-29 06:59:56,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:59:56,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:59:56,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:59:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:59:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:59:56,408 INFO L87 Difference]: Start difference. First operand 487 states and 702 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 07:00:00,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:00:04,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:00:08,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:00:08,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:08,603 INFO L93 Difference]: Finished difference Result 660 states and 950 transitions. [2023-11-29 07:00:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:00:08,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 94 [2023-11-29 07:00:08,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:08,609 INFO L225 Difference]: With dead ends: 660 [2023-11-29 07:00:08,609 INFO L226 Difference]: Without dead ends: 659 [2023-11-29 07:00:08,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:00:08,611 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 828 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:08,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1209 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2023-11-29 07:00:08,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-11-29 07:00:08,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 486. [2023-11-29 07:00:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 477 states have (on average 1.4570230607966457) internal successors, (695), 481 states have internal predecessors, (695), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:00:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 701 transitions. [2023-11-29 07:00:08,635 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 701 transitions. Word has length 94 [2023-11-29 07:00:08,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:08,635 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 701 transitions. [2023-11-29 07:00:08,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 07:00:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 701 transitions. [2023-11-29 07:00:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 07:00:08,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:08,638 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] [2023-11-29 07:00:08,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:00:08,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:08,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:08,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash -560459600, now seen corresponding path program 1 times [2023-11-29 07:00:08,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:08,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539480560] [2023-11-29 07:00:08,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:08,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:08,913 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:08,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494726102] [2023-11-29 07:00:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:08,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:08,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:08,915 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:08,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:00:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:09,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:00:09,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:09,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:00:09,589 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 07:00:09,601 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 07:00:09,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539480560] [2023-11-29 07:00:09,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:09,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494726102] [2023-11-29 07:00:09,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494726102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:09,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:00:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90565897] [2023-11-29 07:00:09,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:00:09,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:09,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:00:09,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:00:09,605 INFO L87 Difference]: Start difference. First operand 486 states and 701 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 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 07:00:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:09,785 INFO L93 Difference]: Finished difference Result 723 states and 1033 transitions. [2023-11-29 07:00:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:00:09,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 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 95 [2023-11-29 07:00:09,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:09,791 INFO L225 Difference]: With dead ends: 723 [2023-11-29 07:00:09,791 INFO L226 Difference]: Without dead ends: 722 [2023-11-29 07:00:09,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:00:09,793 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 406 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:09,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1957 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:00:09,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-29 07:00:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 549. [2023-11-29 07:00:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 536 states have (on average 1.4402985074626866) internal successors, (772), 540 states have internal predecessors, (772), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 07:00:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 784 transitions. [2023-11-29 07:00:09,820 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 784 transitions. Word has length 95 [2023-11-29 07:00:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:09,820 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 784 transitions. [2023-11-29 07:00:09,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 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 07:00:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 784 transitions. [2023-11-29 07:00:09,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 07:00:09,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:09,822 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] [2023-11-29 07:00:09,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:00:10,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 07:00:10,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:10,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash -26195904, now seen corresponding path program 1 times [2023-11-29 07:00:10,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:10,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115464707] [2023-11-29 07:00:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:10,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:10,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585041643] [2023-11-29 07:00:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:10,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:10,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:10,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:10,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:00:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:10,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:00:10,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 07:00:10,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:10,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115464707] [2023-11-29 07:00:10,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585041643] [2023-11-29 07:00:10,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585041643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:10,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:10,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:00:10,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112470048] [2023-11-29 07:00:10,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:10,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:00:10,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:10,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:00:10,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:10,652 INFO L87 Difference]: Start difference. First operand 549 states and 784 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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 07:00:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:11,139 INFO L93 Difference]: Finished difference Result 1112 states and 1581 transitions. [2023-11-29 07:00:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:00:11,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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 100 [2023-11-29 07:00:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:11,144 INFO L225 Difference]: With dead ends: 1112 [2023-11-29 07:00:11,144 INFO L226 Difference]: Without dead ends: 647 [2023-11-29 07:00:11,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:11,146 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 27 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:11,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2540 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:00:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-29 07:00:11,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 629. [2023-11-29 07:00:11,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 616 states have (on average 1.4090909090909092) internal successors, (868), 620 states have internal predecessors, (868), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 07:00:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 880 transitions. [2023-11-29 07:00:11,175 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 880 transitions. Word has length 100 [2023-11-29 07:00:11,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:11,176 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 880 transitions. [2023-11-29 07:00:11,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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 07:00:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 880 transitions. [2023-11-29 07:00:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 07:00:11,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:11,179 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] [2023-11-29 07:00:11,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:00:11,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:11,387 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:11,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:11,387 INFO L85 PathProgramCache]: Analyzing trace with hash 914332846, now seen corresponding path program 1 times [2023-11-29 07:00:11,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:11,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483689355] [2023-11-29 07:00:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:11,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:11,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:11,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504115913] [2023-11-29 07:00:11,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:11,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:11,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:11,438 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:11,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:00:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:12,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:00:12,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:12,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 07:00:12,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:12,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:12,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483689355] [2023-11-29 07:00:12,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:12,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504115913] [2023-11-29 07:00:12,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504115913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:12,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:12,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 07:00:12,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139415099] [2023-11-29 07:00:12,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:12,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:00:12,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:12,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:00:12,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:00:12,159 INFO L87 Difference]: Start difference. First operand 629 states and 880 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 07:00:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:12,785 INFO L93 Difference]: Finished difference Result 1158 states and 1628 transitions. [2023-11-29 07:00:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:00:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 101 [2023-11-29 07:00:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:12,789 INFO L225 Difference]: With dead ends: 1158 [2023-11-29 07:00:12,789 INFO L226 Difference]: Without dead ends: 665 [2023-11-29 07:00:12,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:00:12,791 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 47 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:12,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 2470 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:00:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-29 07:00:12,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 649. [2023-11-29 07:00:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 636 states have (on average 1.4150943396226414) internal successors, (900), 640 states have internal predecessors, (900), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 07:00:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 912 transitions. [2023-11-29 07:00:12,816 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 912 transitions. Word has length 101 [2023-11-29 07:00:12,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:12,816 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 912 transitions. [2023-11-29 07:00:12,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 07:00:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 912 transitions. [2023-11-29 07:00:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 07:00:12,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:12,818 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] [2023-11-29 07:00:12,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:00:13,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:13,019 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:13,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:13,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1219291781, now seen corresponding path program 1 times [2023-11-29 07:00:13,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:13,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630835593] [2023-11-29 07:00:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:13,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:13,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:13,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126502762] [2023-11-29 07:00:13,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:13,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:13,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:13,071 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:13,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:00:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:13,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:00:13,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 07:00:13,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:13,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:13,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630835593] [2023-11-29 07:00:13,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:13,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126502762] [2023-11-29 07:00:13,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126502762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:13,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:13,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:00:13,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875185449] [2023-11-29 07:00:13,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:13,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:00:13,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:13,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:00:13,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:13,678 INFO L87 Difference]: Start difference. First operand 649 states and 912 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 07:00:14,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:14,160 INFO L93 Difference]: Finished difference Result 1172 states and 1651 transitions. [2023-11-29 07:00:14,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:00:14,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 102 [2023-11-29 07:00:14,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:14,164 INFO L225 Difference]: With dead ends: 1172 [2023-11-29 07:00:14,165 INFO L226 Difference]: Without dead ends: 665 [2023-11-29 07:00:14,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:14,166 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 21 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:14,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2527 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:00:14,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-29 07:00:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 651. [2023-11-29 07:00:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 638 states have (on average 1.4169278996865204) internal successors, (904), 642 states have internal predecessors, (904), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 07:00:14,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 916 transitions. [2023-11-29 07:00:14,194 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 916 transitions. Word has length 102 [2023-11-29 07:00:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:14,194 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 916 transitions. [2023-11-29 07:00:14,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 07:00:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 916 transitions. [2023-11-29 07:00:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 07:00:14,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:14,196 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] [2023-11-29 07:00:14,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 07:00:14,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:14,397 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:14,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash -540019527, now seen corresponding path program 1 times [2023-11-29 07:00:14,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:14,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643042601] [2023-11-29 07:00:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:14,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695907337] [2023-11-29 07:00:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:14,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:14,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:14,475 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:14,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:00:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:14,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:00:14,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:14,873 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 07:00:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:00:14,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:14,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:14,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643042601] [2023-11-29 07:00:14,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:14,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695907337] [2023-11-29 07:00:14,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695907337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:14,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:14,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:00:14,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525491981] [2023-11-29 07:00:14,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:14,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:00:14,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:14,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:00:14,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:00:14,917 INFO L87 Difference]: Start difference. First operand 651 states and 916 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:00:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:15,067 INFO L93 Difference]: Finished difference Result 1129 states and 1590 transitions. [2023-11-29 07:00:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:00:15,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2023-11-29 07:00:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:15,073 INFO L225 Difference]: With dead ends: 1129 [2023-11-29 07:00:15,073 INFO L226 Difference]: Without dead ends: 655 [2023-11-29 07:00:15,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:15,075 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 248 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:15,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 2470 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:00:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-11-29 07:00:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2023-11-29 07:00:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 640 states have (on average 1.41875) internal successors, (908), 646 states have internal predecessors, (908), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:00:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 922 transitions. [2023-11-29 07:00:15,102 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 922 transitions. Word has length 102 [2023-11-29 07:00:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:15,102 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 922 transitions. [2023-11-29 07:00:15,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:00:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 922 transitions. [2023-11-29 07:00:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 07:00:15,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:15,104 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] [2023-11-29 07:00:15,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:00:15,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:15,305 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:15,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash -67944841, now seen corresponding path program 1 times [2023-11-29 07:00:15,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:15,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79689530] [2023-11-29 07:00:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:15,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:15,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:15,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727421453] [2023-11-29 07:00:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:15,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:15,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:15,361 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:15,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 07:00:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:15,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 07:00:15,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:15,862 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 07:00:15,881 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 07:00:15,905 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 07:00:16,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:00:16,325 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 07:00:16,494 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 07:00:16,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:16,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79689530] [2023-11-29 07:00:16,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727421453] [2023-11-29 07:00:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727421453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:16,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:16,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 07:00:16,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479987201] [2023-11-29 07:00:16,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:16,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:00:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:00:16,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:00:16,498 INFO L87 Difference]: Start difference. First operand 655 states and 922 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 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 07:00:19,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:19,203 INFO L93 Difference]: Finished difference Result 1368 states and 1929 transitions. [2023-11-29 07:00:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:00:19,204 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 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 104 [2023-11-29 07:00:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:19,207 INFO L225 Difference]: With dead ends: 1368 [2023-11-29 07:00:19,207 INFO L226 Difference]: Without dead ends: 842 [2023-11-29 07:00:19,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 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 07:00:19,209 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1022 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:19,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 3554 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 07:00:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2023-11-29 07:00:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 662. [2023-11-29 07:00:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 647 states have (on average 1.4142194744976817) internal successors, (915), 653 states have internal predecessors, (915), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:00:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 929 transitions. [2023-11-29 07:00:19,232 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 929 transitions. Word has length 104 [2023-11-29 07:00:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:19,232 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 929 transitions. [2023-11-29 07:00:19,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 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 07:00:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 929 transitions. [2023-11-29 07:00:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 07:00:19,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:19,233 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] [2023-11-29 07:00:19,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 07:00:19,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 07:00:19,434 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:19,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2133709479, now seen corresponding path program 1 times [2023-11-29 07:00:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:19,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198116553] [2023-11-29 07:00:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:19,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:19,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143547493] [2023-11-29 07:00:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:19,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:19,479 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:19,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 07:00:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:19,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 123 conjunts are in the unsatisfiable core [2023-11-29 07:00:19,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:19,914 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 07:00:19,952 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 07:00:20,510 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 07:00:20,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:00:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198116553] [2023-11-29 07:00:20,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143547493] [2023-11-29 07:00:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143547493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:00:20,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:00:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:00:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577985734] [2023-11-29 07:00:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:00:20,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:00:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:00:20,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:20,513 INFO L87 Difference]: Start difference. First operand 662 states and 929 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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 07:00:21,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:00:21,856 INFO L93 Difference]: Finished difference Result 1195 states and 1679 transitions. [2023-11-29 07:00:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:00:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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 104 [2023-11-29 07:00:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:00:21,861 INFO L225 Difference]: With dead ends: 1195 [2023-11-29 07:00:21,861 INFO L226 Difference]: Without dead ends: 676 [2023-11-29 07:00:21,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:00:21,862 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 260 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:00:21,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 2454 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 07:00:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-11-29 07:00:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 665. [2023-11-29 07:00:21,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 650 states have (on average 1.4123076923076923) internal successors, (918), 656 states have internal predecessors, (918), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 07:00:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 932 transitions. [2023-11-29 07:00:21,887 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 932 transitions. Word has length 104 [2023-11-29 07:00:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:00:21,888 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 932 transitions. [2023-11-29 07:00:21,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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 07:00:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 932 transitions. [2023-11-29 07:00:21,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 07:00:21,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:00:21,889 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] [2023-11-29 07:00:21,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 07:00:22,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 07:00:22,090 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:00:22,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:00:22,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1429290391, now seen corresponding path program 1 times [2023-11-29 07:00:22,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:00:22,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046281912] [2023-11-29 07:00:22,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:22,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:00:22,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:00:22,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24553788] [2023-11-29 07:00:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:00:22,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:00:22,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:00:22,141 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:00:22,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f31dab-2908-46da-94f4-41395bd3b127/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 07:00:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:00:22,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 137 conjunts are in the unsatisfiable core [2023-11-29 07:00:22,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:00:22,643 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 07:00:22,660 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 07:00:22,700 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 07:00:22,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:00:23,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:00:23,335 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 07:00:23,335 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 07:00:23,349 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 07:00:23,428 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 07:00:23,670 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:00:23,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:00:23,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-29 07:04:00,713 INFO L224 Elim1Store]: Index analysis took 6144 ms