./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.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_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/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_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/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_71b1ea09-2308-4980-86bd-931c2993e31e/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 dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:29:48,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:29:49,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:29:49,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:29:49,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:29:49,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:29:49,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:29:49,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:29:49,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:29:49,037 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:29:49,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:29:49,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:29:49,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:29:49,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:29:49,040 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:29:49,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:29:49,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:29:49,041 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:29:49,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:29:49,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:29:49,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:29:49,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:29:49,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:29:49,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:29:49,051 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:29:49,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:29:49,052 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:29:49,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:29:49,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:29:49,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:29:49,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:29:49,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:29:49,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:29:49,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:29:49,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:29:49,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:29:49,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:29:49,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:29:49,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:29:49,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:29:49,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:29:49,056 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:29:49,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:29:49,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:29:49,056 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_71b1ea09-2308-4980-86bd-931c2993e31e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c [2023-11-29 00:29:49,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:29:49,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:29:49,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:29:49,306 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:29:49,306 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:29:49,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i [2023-11-29 00:29:52,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:29:52,409 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:29:52,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i [2023-11-29 00:29:52,429 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data/9c62c9222/96b259f5d4b5453b809afb7134159d4e/FLAG8eaaa8452 [2023-11-29 00:29:52,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data/9c62c9222/96b259f5d4b5453b809afb7134159d4e [2023-11-29 00:29:52,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:29:52,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:29:52,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:29:52,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:29:52,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:29:52,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:29:52" (1/1) ... [2023-11-29 00:29:52,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac39564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:52, skipping insertion in model container [2023-11-29 00:29:52,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:29:52" (1/1) ... [2023-11-29 00:29:52,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:29:53,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:29:53,069 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:29:53,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:29:53,222 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:29:53,230 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:29:53,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53 WrapperNode [2023-11-29 00:29:53,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:29:53,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:29:53,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:29:53,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:29:53,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,325 INFO L138 Inliner]: procedures = 208, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1215 [2023-11-29 00:29:53,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:29:53,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:29:53,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:29:53,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:29:53,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,407 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [2, 5, 34, 172]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 1, 4, 42]. [2023-11-29 00:29:53,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:29:53,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:29:53,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:29:53,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:29:53,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (1/1) ... [2023-11-29 00:29:53,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:29:53,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:53,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:29:53,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:29:53,533 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 00:29:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 00:29:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:29:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:29:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:29:53,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 00:29:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:29:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:29:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:29:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 00:29:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:29:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 00:29:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:29:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:29:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:29:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:29:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:29:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:29:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:29:53,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:29:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:29:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:29:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:29:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:29:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:29:53,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:29:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:29:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:29:53,740 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:29:53,742 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:29:55,037 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:29:55,083 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:29:55,084 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-29 00:29:55,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:29:55 BoogieIcfgContainer [2023-11-29 00:29:55,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:29:55,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:29:55,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:29:55,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:29:55,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:29:52" (1/3) ... [2023-11-29 00:29:55,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9fd884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:29:55, skipping insertion in model container [2023-11-29 00:29:55,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:29:53" (2/3) ... [2023-11-29 00:29:55,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9fd884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:29:55, skipping insertion in model container [2023-11-29 00:29:55,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:29:55" (3/3) ... [2023-11-29 00:29:55,093 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-1.i [2023-11-29 00:29:55,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:29:55,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 00:29:55,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:29:55,176 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;@364e9282, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:29:55,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 00:29:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 352 states, 330 states have (on average 1.715151515151515) internal successors, (566), 345 states have internal predecessors, (566), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 00:29:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:29:55,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:55,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:29:55,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:55,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:55,195 INFO L85 PathProgramCache]: Analyzing trace with hash -449541274, now seen corresponding path program 1 times [2023-11-29 00:29:55,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:55,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67416265] [2023-11-29 00:29:55,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:55,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:55,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:55,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67416265] [2023-11-29 00:29:55,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 00:29:55,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521738128] [2023-11-29 00:29:55,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:55,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:55,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:55,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:55,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:29:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:55,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:29:55,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:55,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:29:55,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521738128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:55,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:55,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:29:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674146339] [2023-11-29 00:29:55,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:55,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:29:55,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:29:55,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:29:55,583 INFO L87 Difference]: Start difference. First operand has 352 states, 330 states have (on average 1.715151515151515) internal successors, (566), 345 states have internal predecessors, (566), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:55,656 INFO L93 Difference]: Finished difference Result 701 states and 1175 transitions. [2023-11-29 00:29:55,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:29:55,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 00:29:55,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:55,671 INFO L225 Difference]: With dead ends: 701 [2023-11-29 00:29:55,672 INFO L226 Difference]: Without dead ends: 345 [2023-11-29 00:29:55,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:29:55,680 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:55,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 519 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:29:55,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-29 00:29:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-11-29 00:29:55,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 327 states have (on average 1.5321100917431192) internal successors, (501), 339 states have internal predecessors, (501), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 517 transitions. [2023-11-29 00:29:55,747 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 517 transitions. Word has length 6 [2023-11-29 00:29:55,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:55,747 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 517 transitions. [2023-11-29 00:29:55,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 517 transitions. [2023-11-29 00:29:55,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:29:55,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:55,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:29:55,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:29:55,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:55,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:55,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:55,950 INFO L85 PathProgramCache]: Analyzing trace with hash -449539352, now seen corresponding path program 1 times [2023-11-29 00:29:55,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:55,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610957933] [2023-11-29 00:29:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:55,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:55,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:29:55,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841400304] [2023-11-29 00:29:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:55,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:55,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:55,976 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:55,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:29:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:56,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:29:56,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:56,186 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 00:29:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:56,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:29:56,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:56,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610957933] [2023-11-29 00:29:56,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:29:56,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841400304] [2023-11-29 00:29:56,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841400304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:56,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:56,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:29:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667562533] [2023-11-29 00:29:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:56,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:29:56,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:56,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:29:56,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:29:56,216 INFO L87 Difference]: Start difference. First operand 345 states and 517 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:56,383 INFO L93 Difference]: Finished difference Result 682 states and 1027 transitions. [2023-11-29 00:29:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:29:56,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 00:29:56,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:56,390 INFO L225 Difference]: With dead ends: 682 [2023-11-29 00:29:56,390 INFO L226 Difference]: Without dead ends: 680 [2023-11-29 00:29:56,390 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 00:29:56,392 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 487 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:56,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1467 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:29:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-29 00:29:56,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 351. [2023-11-29 00:29:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5255255255255256) internal successors, (508), 345 states have internal predecessors, (508), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 524 transitions. [2023-11-29 00:29:56,424 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 524 transitions. Word has length 6 [2023-11-29 00:29:56,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:56,424 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 524 transitions. [2023-11-29 00:29:56,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 524 transitions. [2023-11-29 00:29:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 00:29:56,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:56,428 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] [2023-11-29 00:29:56,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:29:56,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:56,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:56,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1116653310, now seen corresponding path program 1 times [2023-11-29 00:29:56,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:56,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330551690] [2023-11-29 00:29:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:56,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:57,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:57,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330551690] [2023-11-29 00:29:57,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330551690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:57,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:57,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:29:57,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377906780] [2023-11-29 00:29:57,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:57,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:29:57,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:29:57,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:29:57,013 INFO L87 Difference]: Start difference. First operand 351 states and 524 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:57,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:57,161 INFO L93 Difference]: Finished difference Result 839 states and 1268 transitions. [2023-11-29 00:29:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:29:57,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-11-29 00:29:57,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:57,167 INFO L225 Difference]: With dead ends: 839 [2023-11-29 00:29:57,167 INFO L226 Difference]: Without dead ends: 679 [2023-11-29 00:29:57,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:29:57,169 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 488 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:57,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1472 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:29:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-11-29 00:29:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 351. [2023-11-29 00:29:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 345 states have internal predecessors, (507), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:57,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 523 transitions. [2023-11-29 00:29:57,190 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 523 transitions. Word has length 63 [2023-11-29 00:29:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:57,190 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 523 transitions. [2023-11-29 00:29:57,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:57,191 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 523 transitions. [2023-11-29 00:29:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:29:57,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:57,194 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] [2023-11-29 00:29:57,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:29:57,195 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:57,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1403400679, now seen corresponding path program 1 times [2023-11-29 00:29:57,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:57,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574713271] [2023-11-29 00:29:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:57,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:57,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:29:57,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17997886] [2023-11-29 00:29:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:57,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:57,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:57,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:29:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:57,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:29:57,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:57,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:29:57,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:57,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574713271] [2023-11-29 00:29:57,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:29:57,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17997886] [2023-11-29 00:29:57,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17997886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:57,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:57,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:29:57,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122309204] [2023-11-29 00:29:57,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:57,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:29:57,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:57,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:29:57,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:29:57,548 INFO L87 Difference]: Start difference. First operand 351 states and 523 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:57,641 INFO L93 Difference]: Finished difference Result 716 states and 1070 transitions. [2023-11-29 00:29:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:29:57,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2023-11-29 00:29:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:57,645 INFO L225 Difference]: With dead ends: 716 [2023-11-29 00:29:57,645 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 00:29:57,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:29:57,647 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 8 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:57,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 976 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:29:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 00:29:57,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-29 00:29:57,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 353 states have (on average 1.4929178470254958) internal successors, (527), 365 states have internal predecessors, (527), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 543 transitions. [2023-11-29 00:29:57,659 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 543 transitions. Word has length 80 [2023-11-29 00:29:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:57,660 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 543 transitions. [2023-11-29 00:29:57,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 543 transitions. [2023-11-29 00:29:57,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:29:57,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:57,662 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] [2023-11-29 00:29:57,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:29:57,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:57,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:57,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2015547611, now seen corresponding path program 1 times [2023-11-29 00:29:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052542839] [2023-11-29 00:29:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:57,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:29:57,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100648981] [2023-11-29 00:29:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:57,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:57,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:57,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:57,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:29:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:58,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:29:58,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:58,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:29:58,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:58,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052542839] [2023-11-29 00:29:58,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:29:58,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100648981] [2023-11-29 00:29:58,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100648981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:58,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:58,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:29:58,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645358024] [2023-11-29 00:29:58,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:58,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:29:58,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:29:58,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:29:58,248 INFO L87 Difference]: Start difference. First operand 371 states and 543 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:58,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:58,350 INFO L93 Difference]: Finished difference Result 722 states and 1066 transitions. [2023-11-29 00:29:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:29:58,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-29 00:29:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:58,353 INFO L225 Difference]: With dead ends: 722 [2023-11-29 00:29:58,353 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 00:29:58,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:29:58,355 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 147 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:58,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1784 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:29:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 00:29:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-29 00:29:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 339 states have (on average 1.4926253687315634) internal successors, (506), 351 states have internal predecessors, (506), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 522 transitions. [2023-11-29 00:29:58,369 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 522 transitions. Word has length 80 [2023-11-29 00:29:58,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:58,370 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 522 transitions. [2023-11-29 00:29:58,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 522 transitions. [2023-11-29 00:29:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:29:58,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:58,371 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] [2023-11-29 00:29:58,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 00:29:58,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:58,573 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:58,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash -834260979, now seen corresponding path program 1 times [2023-11-29 00:29:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:58,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461869816] [2023-11-29 00:29:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:58,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:58,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:29:58,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707227849] [2023-11-29 00:29:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:58,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:58,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:58,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:58,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:29:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:58,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:29:58,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:58,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:29:58,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461869816] [2023-11-29 00:29:58,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:29:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707227849] [2023-11-29 00:29:58,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707227849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:58,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:58,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:29:58,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215541387] [2023-11-29 00:29:58,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:58,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:29:58,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:58,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:29:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:29:58,919 INFO L87 Difference]: Start difference. First operand 357 states and 522 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:59,044 INFO L93 Difference]: Finished difference Result 817 states and 1206 transitions. [2023-11-29 00:29:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:29:59,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-29 00:29:59,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:59,048 INFO L225 Difference]: With dead ends: 817 [2023-11-29 00:29:59,048 INFO L226 Difference]: Without dead ends: 467 [2023-11-29 00:29:59,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:29:59,050 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 152 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:59,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1459 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:29:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-29 00:29:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 380. [2023-11-29 00:29:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 362 states have (on average 1.4668508287292819) internal successors, (531), 374 states have internal predecessors, (531), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 547 transitions. [2023-11-29 00:29:59,066 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 547 transitions. Word has length 80 [2023-11-29 00:29:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:59,066 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 547 transitions. [2023-11-29 00:29:59,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 547 transitions. [2023-11-29 00:29:59,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:29:59,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:59,067 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] [2023-11-29 00:29:59,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:29:59,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:59,271 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:59,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:59,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2132806457, now seen corresponding path program 1 times [2023-11-29 00:29:59,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:59,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703894117] [2023-11-29 00:29:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:59,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:59,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:29:59,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774163448] [2023-11-29 00:29:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:59,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:59,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:59,331 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:59,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:29:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:29:59,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:29:59,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:59,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:29:59,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703894117] [2023-11-29 00:29:59,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:29:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774163448] [2023-11-29 00:29:59,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774163448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:29:59,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:29:59,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:29:59,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213212056] [2023-11-29 00:29:59,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:29:59,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:29:59,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:29:59,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:29:59,674 INFO L87 Difference]: Start difference. First operand 380 states and 547 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:59,745 INFO L93 Difference]: Finished difference Result 685 states and 987 transitions. [2023-11-29 00:29:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:29:59,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2023-11-29 00:29:59,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:59,749 INFO L225 Difference]: With dead ends: 685 [2023-11-29 00:29:59,749 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 00:29:59,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:29:59,750 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 78 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:59,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1177 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:29:59,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 00:29:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-11-29 00:29:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 294 states have (on average 1.4591836734693877) internal successors, (429), 306 states have internal predecessors, (429), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:29:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 445 transitions. [2023-11-29 00:29:59,765 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 445 transitions. Word has length 80 [2023-11-29 00:29:59,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:59,765 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 445 transitions. [2023-11-29 00:29:59,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:29:59,766 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 445 transitions. [2023-11-29 00:29:59,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:29:59,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:59,766 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] [2023-11-29 00:29:59,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:29:59,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:59,971 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:29:59,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:59,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1710279985, now seen corresponding path program 1 times [2023-11-29 00:29:59,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:59,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565602954] [2023-11-29 00:29:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:00,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:30:00,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070738973] [2023-11-29 00:30:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:00,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:00,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:30:00,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:30:00,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:30:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:00,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:30:00,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:30:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:30:00,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:30:00,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565602954] [2023-11-29 00:30:00,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:30:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070738973] [2023-11-29 00:30:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070738973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:30:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229107052] [2023-11-29 00:30:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:00,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:30:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:30:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:30:00,551 INFO L87 Difference]: Start difference. First operand 312 states and 445 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:30:00,638 INFO L93 Difference]: Finished difference Result 822 states and 1193 transitions. [2023-11-29 00:30:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:30:00,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-11-29 00:30:00,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:30:00,643 INFO L225 Difference]: With dead ends: 822 [2023-11-29 00:30:00,643 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 00:30:00,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:30:00,644 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 252 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:30:00,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1029 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:30:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 00:30:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 513. [2023-11-29 00:30:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 490 states have (on average 1.4836734693877551) internal successors, (727), 507 states have internal predecessors, (727), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 00:30:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 753 transitions. [2023-11-29 00:30:00,667 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 753 transitions. Word has length 80 [2023-11-29 00:30:00,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:30:00,667 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 753 transitions. [2023-11-29 00:30:00,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:30:00,667 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 753 transitions. [2023-11-29 00:30:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 00:30:00,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:30:00,669 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:30:00,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 00:30:00,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:00,869 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:30:00,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 127808702, now seen corresponding path program 1 times [2023-11-29 00:30:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:00,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445017165] [2023-11-29 00:30:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:00,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:00,949 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:30:00,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50551663] [2023-11-29 00:30:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:00,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:30:00,951 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:30:00,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:30:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:01,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:30:01,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:30:01,292 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 00:30:01,485 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 00:30:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:30:01,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:30:01,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:01,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445017165] [2023-11-29 00:30:01,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:30:01,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50551663] [2023-11-29 00:30:01,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50551663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:01,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:01,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:30:01,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597142321] [2023-11-29 00:30:01,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:01,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:30:01,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:30:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:30:01,496 INFO L87 Difference]: Start difference. First operand 513 states and 753 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:30:05,596 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 00:30:09,666 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 00:30:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:30:09,740 INFO L93 Difference]: Finished difference Result 692 states and 1030 transitions. [2023-11-29 00:30:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:30:09,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-29 00:30:09,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:30:09,746 INFO L225 Difference]: With dead ends: 692 [2023-11-29 00:30:09,746 INFO L226 Difference]: Without dead ends: 691 [2023-11-29 00:30:09,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 00:30:09,747 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 336 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:30:09,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1258 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-29 00:30:09,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-29 00:30:09,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 512. [2023-11-29 00:30:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 490 states have (on average 1.4816326530612245) internal successors, (726), 506 states have internal predecessors, (726), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 00:30:09,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 752 transitions. [2023-11-29 00:30:09,770 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 752 transitions. Word has length 93 [2023-11-29 00:30:09,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:30:09,771 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 752 transitions. [2023-11-29 00:30:09,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:30:09,771 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 752 transitions. [2023-11-29 00:30:09,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 00:30:09,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:30:09,772 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 00:30:09,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:30:09,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:09,974 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:30:09,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:09,974 INFO L85 PathProgramCache]: Analyzing trace with hash -332896737, now seen corresponding path program 1 times [2023-11-29 00:30:09,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:09,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548337129] [2023-11-29 00:30:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:09,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:10,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:30:10,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198068695] [2023-11-29 00:30:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:10,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:10,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:30:10,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:30:10,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:30:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:10,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:30:10,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:30:10,537 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 00:30:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:30:10,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:30:10,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:10,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548337129] [2023-11-29 00:30:10,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:30:10,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198068695] [2023-11-29 00:30:10,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198068695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:10,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:10,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:30:10,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242148875] [2023-11-29 00:30:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:10,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:30:10,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:10,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:30:10,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:30:10,560 INFO L87 Difference]: Start difference. First operand 512 states and 752 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 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 00:30:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:30:10,826 INFO L93 Difference]: Finished difference Result 691 states and 1029 transitions. [2023-11-29 00:30:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:30:10,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 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 00:30:10,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:30:10,831 INFO L225 Difference]: With dead ends: 691 [2023-11-29 00:30:10,831 INFO L226 Difference]: Without dead ends: 690 [2023-11-29 00:30:10,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:30:10,832 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 333 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:30:10,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1650 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:30:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-29 00:30:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 511. [2023-11-29 00:30:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 490 states have (on average 1.4795918367346939) internal successors, (725), 505 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 00:30:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 751 transitions. [2023-11-29 00:30:10,851 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 751 transitions. Word has length 94 [2023-11-29 00:30:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:30:10,851 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 751 transitions. [2023-11-29 00:30:10,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 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 00:30:10,851 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 751 transitions. [2023-11-29 00:30:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 00:30:10,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:30:10,852 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] [2023-11-29 00:30:10,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 00:30:11,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 00:30:11,053 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:30:11,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:11,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1269555277, now seen corresponding path program 1 times [2023-11-29 00:30:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:11,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316890951] [2023-11-29 00:30:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:11,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:11,105 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:30:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214844739] [2023-11-29 00:30:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:11,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:11,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:30:11,106 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:30:11,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:30:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:11,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 00:30:11,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:30:11,509 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 00:30:11,539 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 00:30:11,564 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 00:30:11,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:30:11,953 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 00:30:12,134 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 00:30:12,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:30:12,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:30:12,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316890951] [2023-11-29 00:30:12,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:30:12,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214844739] [2023-11-29 00:30:12,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214844739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:30:12,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:30:12,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:30:12,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393136052] [2023-11-29 00:30:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:30:12,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:30:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:30:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:30:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:30:12,137 INFO L87 Difference]: Start difference. First operand 511 states and 751 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:30:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:30:14,087 INFO L93 Difference]: Finished difference Result 1219 states and 1815 transitions. [2023-11-29 00:30:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:30:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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 99 [2023-11-29 00:30:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:30:14,093 INFO L225 Difference]: With dead ends: 1219 [2023-11-29 00:30:14,093 INFO L226 Difference]: Without dead ends: 746 [2023-11-29 00:30:14,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:30:14,095 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 672 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:30:14,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 3452 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:30:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-11-29 00:30:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 511. [2023-11-29 00:30:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 490 states have (on average 1.4775510204081632) internal successors, (724), 505 states have internal predecessors, (724), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 00:30:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 750 transitions. [2023-11-29 00:30:14,119 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 750 transitions. Word has length 99 [2023-11-29 00:30:14,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:30:14,120 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 750 transitions. [2023-11-29 00:30:14,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:30:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 750 transitions. [2023-11-29 00:30:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 00:30:14,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:30:14,122 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 00:30:14,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 00:30:14,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:30:14,322 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:30:14,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:30:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash 389467515, now seen corresponding path program 1 times [2023-11-29 00:30:14,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:30:14,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556618545] [2023-11-29 00:30:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:14,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:30:14,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:30:14,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234889093] [2023-11-29 00:30:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:30:14,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:30:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:30:14,367 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:30:14,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:30:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:30:14,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 00:30:14,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:30:14,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:30:14,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 22 [2023-11-29 00:30:32,061 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:30:40,089 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:30:48,113 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:00,332 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:05,468 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:18,294 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:26,361 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:38,430 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:46,448 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:31:53,310 WARN L293 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:03,085 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:11,112 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:23,224 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:31,284 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:39,616 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:47,699 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:32:55,716 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:33:03,758 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 00:33:07,779 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4276993779) 4294967296))) (let ((.cse0 (mod (+ 2690382803 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4294967296)) (.cse3 (* .cse6 256)) (.cse5 (* (- 1) |c_ULTIMATE.start_main_~_ha_hashv~0#1|))) (or (exists ((v_z_29 Int)) (and (exists ((v_y_26 Int) (v_y_29 Int)) (let ((.cse4 (* v_y_26 4294967296)) (.cse1 (* v_z_29 4294967295)) (.cse2 (* v_y_29 4294967296))) (and (= (+ .cse0 .cse1 .cse2) 4294967296) (= .cse3 (+ .cse4 (* v_z_29 4294967039) .cse2)) (<= (+ .cse1 .cse2) 4294967295) (<= (+ .cse4 |c_ULTIMATE.start_main_~_ha_hashv~0#1| .cse1 .cse2) 8553987558) (<= (div (+ (div (+ (- 255) (div (+ 8553987302 (* v_z_29 (- 4294967295)) .cse5) 256)) 256) (- 255)) 256) (+ 254 (* v_y_26 256) (* v_y_29 256)))))) (<= 0 v_z_29) (<= (+ .cse6 v_z_29) 4294967295))) (exists ((v_z_29 Int)) (and (exists ((v_y_26 Int) (v_y_29 Int)) (let ((.cse7 (* v_z_29 4294967295)) (.cse9 (* v_y_26 4294967296)) (.cse8 (* v_y_29 4294967296))) (and (= (+ .cse0 .cse7 .cse8) 4294967296) (<= (+ .cse9 |c_ULTIMATE.start_main_~_ha_hashv~0#1| .cse7 .cse8) 8553987558) (= .cse3 (+ 1099511627776 .cse9 (* v_z_29 4294967039) .cse8)) (<= (div (+ (div (+ (- 255) (div (+ 8553987302 (* v_z_29 (- 4294967295)) .cse5) 256)) 256) (- 255)) 256) (+ 254 (* v_y_26 256) (* v_y_29 256)))))) (<= 4294967296 (+ .cse6 v_z_29)) (<= v_z_29 4294967295)))))) is different from false [2023-11-29 00:33:10,082 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 00:33:10,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:10,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:10,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556618545] [2023-11-29 00:33:10,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:10,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234889093] [2023-11-29 00:33:10,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234889093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:10,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:10,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 00:33:10,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604039936] [2023-11-29 00:33:10,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:10,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:33:10,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:10,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:33:10,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=108, Unknown=1, NotChecked=20, Total=156 [2023-11-29 00:33:10,085 INFO L87 Difference]: Start difference. First operand 511 states and 750 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 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 00:33:15,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:33:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:16,044 INFO L93 Difference]: Finished difference Result 998 states and 1482 transitions. [2023-11-29 00:33:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:33:16,045 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 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 00:33:16,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:16,048 INFO L225 Difference]: With dead ends: 998 [2023-11-29 00:33:16,048 INFO L226 Difference]: Without dead ends: 525 [2023-11-29 00:33:16,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=35, Invalid=150, Unknown=1, NotChecked=24, Total=210 [2023-11-29 00:33:16,049 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 10 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:16,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3896 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 794 Invalid, 1 Unknown, 95 Unchecked, 5.7s Time] [2023-11-29 00:33:16,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-11-29 00:33:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 519. [2023-11-29 00:33:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 498 states have (on average 1.4698795180722892) internal successors, (732), 513 states have internal predecessors, (732), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 00:33:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 758 transitions. [2023-11-29 00:33:16,075 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 758 transitions. Word has length 100 [2023-11-29 00:33:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:16,076 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 758 transitions. [2023-11-29 00:33:16,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 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 00:33:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 758 transitions. [2023-11-29 00:33:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 00:33:16,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:16,077 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 00:33:16,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 00:33:16,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 00:33:16,278 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:33:16,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2058292276, now seen corresponding path program 1 times [2023-11-29 00:33:16,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:16,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704147639] [2023-11-29 00:33:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:16,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:16,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771475292] [2023-11-29 00:33:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:16,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:16,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:16,337 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:16,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:33:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:17,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:33:17,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:33:17,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704147639] [2023-11-29 00:33:17,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:17,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771475292] [2023-11-29 00:33:17,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771475292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:17,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:17,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:33:17,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685057199] [2023-11-29 00:33:17,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:17,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:17,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:17,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:17,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:17,179 INFO L87 Difference]: Start difference. First operand 519 states and 758 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:33:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:17,233 INFO L93 Difference]: Finished difference Result 959 states and 1414 transitions. [2023-11-29 00:33:17,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:33:17,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 101 [2023-11-29 00:33:17,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:17,238 INFO L225 Difference]: With dead ends: 959 [2023-11-29 00:33:17,239 INFO L226 Difference]: Without dead ends: 521 [2023-11-29 00:33:17,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:17,241 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 1 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:17,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1289 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-11-29 00:33:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-11-29 00:33:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 499 states have (on average 1.470941883767535) internal successors, (734), 515 states have internal predecessors, (734), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:33:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 761 transitions. [2023-11-29 00:33:17,266 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 761 transitions. Word has length 101 [2023-11-29 00:33:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:17,266 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 761 transitions. [2023-11-29 00:33:17,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:33:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 761 transitions. [2023-11-29 00:33:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 00:33:17,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:17,268 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] [2023-11-29 00:33:17,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 00:33:17,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 00:33:17,469 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:33:17,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:17,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2041966106, now seen corresponding path program 1 times [2023-11-29 00:33:17,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:17,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103977704] [2023-11-29 00:33:17,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:17,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:17,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:17,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239290963] [2023-11-29 00:33:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:17,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:17,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:17,530 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:17,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:33:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:18,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 117 conjunts are in the unsatisfiable core [2023-11-29 00:33:18,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:18,092 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 00:33:18,104 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 00:33:18,133 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 00:33:18,157 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 00:33:18,337 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 00:33:18,341 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 00:33:18,357 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 00:33:18,357 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 00:33:18,427 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 00:33:18,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 00:33:18,580 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 00:33:18,580 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 00:33:18,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 00:33:21,315 INFO L224 Elim1Store]: Index analysis took 113 ms [2023-11-29 00:35:43,466 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-29 00:35:43,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2023-11-29 00:35:43,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:43,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103977704] [2023-11-29 00:35:43,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:35:43,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239290963] [2023-11-29 00:35:43,467 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-29 00:35:43,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 00:35:43,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 00:35:43,668 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:230) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:346) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 53 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 71 more [2023-11-29 00:35:43,672 INFO L158 Benchmark]: Toolchain (without parser) took 351227.07ms. Allocated memory was 144.7MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 101.6MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2023-11-29 00:35:43,672 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:35:43,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.22ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 101.3MB in the beginning and 189.8MB in the end (delta: -88.5MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-29 00:35:43,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.16ms. Allocated memory is still 226.5MB. Free memory was 189.8MB in the beginning and 181.4MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:35:43,673 INFO L158 Benchmark]: Boogie Preprocessor took 148.40ms. Allocated memory is still 226.5MB. Free memory was 181.4MB in the beginning and 166.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:35:43,674 INFO L158 Benchmark]: RCFGBuilder took 1608.66ms. Allocated memory is still 226.5MB. Free memory was 166.7MB in the beginning and 177.4MB in the end (delta: -10.7MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2023-11-29 00:35:43,674 INFO L158 Benchmark]: TraceAbstraction took 348584.59ms. Allocated memory was 226.5MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 176.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2023-11-29 00:35:43,676 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 785.22ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 101.3MB in the beginning and 189.8MB in the end (delta: -88.5MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.16ms. Allocated memory is still 226.5MB. Free memory was 189.8MB in the beginning and 181.4MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 148.40ms. Allocated memory is still 226.5MB. Free memory was 181.4MB in the beginning and 166.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1608.66ms. Allocated memory is still 226.5MB. Free memory was 166.7MB in the beginning and 177.4MB in the end (delta: -10.7MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. * TraceAbstraction took 348584.59ms. Allocated memory was 226.5MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 176.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/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_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/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 dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:35:45,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:35:45,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-29 00:35:45,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:35:45,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:35:45,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:35:45,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:35:45,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:35:45,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:35:45,786 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:35:45,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:35:45,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:35:45,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:35:45,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:35:45,790 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:35:45,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:35:45,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:35:45,792 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:35:45,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:35:45,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:35:45,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:35:45,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:35:45,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:35:45,795 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:35:45,795 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:35:45,796 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:35:45,796 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:35:45,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:35:45,797 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:35:45,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:35:45,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:35:45,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:35:45,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:35:45,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:35:45,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:35:45,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:35:45,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:35:45,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:35:45,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:35:45,801 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:35:45,801 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:35:45,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:35:45,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:35:45,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:35:45,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:35:45,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:35:45,802 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:35:45,803 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_71b1ea09-2308-4980-86bd-931c2993e31e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbea62dc4a872959247118f049e63d406eb1e848bb1ed8397f1082fdec77074c [2023-11-29 00:35:46,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:35:46,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:35:46,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:35:46,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:35:46,146 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:35:46,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i [2023-11-29 00:35:48,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:35:49,273 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:35:49,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-1.i [2023-11-29 00:35:49,293 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data/580889575/719b221ffc62441cb89531bad4e0544e/FLAGc51098b44 [2023-11-29 00:35:49,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/data/580889575/719b221ffc62441cb89531bad4e0544e [2023-11-29 00:35:49,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:35:49,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:35:49,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:35:49,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:35:49,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:35:49,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:35:49" (1/1) ... [2023-11-29 00:35:49,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a59913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:49, skipping insertion in model container [2023-11-29 00:35:49,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:35:49" (1/1) ... [2023-11-29 00:35:49,399 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:35:49,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:35:49,949 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 00:35:49,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:35:50,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:35:50,064 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:35:50,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:35:50,224 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:35:50,230 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:35:50,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50 WrapperNode [2023-11-29 00:35:50,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:35:50,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:35:50,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:35:50,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:35:50,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,322 INFO L138 Inliner]: procedures = 211, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 895 [2023-11-29 00:35:50,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:35:50,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:35:50,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:35:50,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:35:50,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,347 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,397 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [2, 34, 5, 172]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 4, 1, 42]. [2023-11-29 00:35:50,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:35:50,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:35:50,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:35:50,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:35:50,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (1/1) ... [2023-11-29 00:35:50,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:35:50,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:50,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:35:50,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:35:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 00:35:50,565 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 00:35:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 00:35:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 00:35:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 00:35:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 00:35:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 00:35:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 00:35:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 00:35:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 00:35:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:35:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:35:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:35:50,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 00:35:50,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:35:50,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:35:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:35:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 00:35:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:35:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 00:35:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:35:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:35:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:35:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 00:35:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:35:50,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:35:50,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:35:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:35:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:35:50,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:35:50,776 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:35:50,778 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:35:58,658 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:35:58,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:35:58,700 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-29 00:35:58,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:35:58 BoogieIcfgContainer [2023-11-29 00:35:58,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:35:58,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:35:58,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:35:58,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:35:58,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:35:49" (1/3) ... [2023-11-29 00:35:58,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c52f7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:35:58, skipping insertion in model container [2023-11-29 00:35:58,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:35:50" (2/3) ... [2023-11-29 00:35:58,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c52f7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:35:58, skipping insertion in model container [2023-11-29 00:35:58,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:35:58" (3/3) ... [2023-11-29 00:35:58,710 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-1.i [2023-11-29 00:35:58,729 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:35:58,729 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 00:35:58,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:35:58,790 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;@5a18b8fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:35:58,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 00:35:58,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 172 states have (on average 1.691860465116279) internal successors, (291), 187 states have internal predecessors, (291), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 00:35:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:35:58,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:58,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:35:58,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:35:58,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1958280640, now seen corresponding path program 1 times [2023-11-29 00:35:58,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:35:58,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724794743] [2023-11-29 00:35:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:58,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:58,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:35:58,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:35:58,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 00:35:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:59,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:35:59,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:59,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:59,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:35:59,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724794743] [2023-11-29 00:35:59,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724794743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:59,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:59,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:35:59,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202043795] [2023-11-29 00:35:59,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:59,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:35:59,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:35:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:35:59,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:35:59,126 INFO L87 Difference]: Start difference. First operand has 194 states, 172 states have (on average 1.691860465116279) internal successors, (291), 187 states have internal predecessors, (291), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:59,201 INFO L93 Difference]: Finished difference Result 382 states and 625 transitions. [2023-11-29 00:35:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:35:59,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 00:35:59,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:59,214 INFO L225 Difference]: With dead ends: 382 [2023-11-29 00:35:59,214 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 00:35:59,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:35:59,221 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:59,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:35:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 00:35:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-29 00:35:59,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 169 states have (on average 1.319526627218935) internal successors, (223), 178 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:35:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 239 transitions. [2023-11-29 00:35:59,272 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 239 transitions. Word has length 6 [2023-11-29 00:35:59,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:59,273 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 239 transitions. [2023-11-29 00:35:59,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:35:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 239 transitions. [2023-11-29 00:35:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:35:59,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:59,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:35:59,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:35:59,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:59,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:35:59,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1958282562, now seen corresponding path program 1 times [2023-11-29 00:35:59,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:35:59,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182998080] [2023-11-29 00:35:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:59,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:35:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:35:59,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:35:59,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 00:35:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:59,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:35:59,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:59,727 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:35:59,728 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:35:59,737 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 33 treesize of output 31 [2023-11-29 00:35:59,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:35:59,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 32 [2023-11-29 00:35:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:35:59,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:59,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:35:59,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182998080] [2023-11-29 00:35:59,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182998080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:59,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:00,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:36:00,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074089675] [2023-11-29 00:36:00,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:00,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:36:00,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:36:00,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:36:00,003 INFO L87 Difference]: Start difference. First operand 184 states and 239 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:01,494 INFO L93 Difference]: Finished difference Result 442 states and 581 transitions. [2023-11-29 00:36:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:36:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 00:36:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:01,499 INFO L225 Difference]: With dead ends: 442 [2023-11-29 00:36:01,500 INFO L226 Difference]: Without dead ends: 357 [2023-11-29 00:36:01,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:36:01,503 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 209 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:01,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1039 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 00:36:01,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-29 00:36:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 190. [2023-11-29 00:36:01,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 175 states have (on average 1.3085714285714285) internal successors, (229), 184 states have internal predecessors, (229), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:36:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 245 transitions. [2023-11-29 00:36:01,529 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 245 transitions. Word has length 6 [2023-11-29 00:36:01,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:01,529 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 245 transitions. [2023-11-29 00:36:01,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:01,530 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 245 transitions. [2023-11-29 00:36:01,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 00:36:01,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:01,533 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] [2023-11-29 00:36:01,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 00:36:01,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:01,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:01,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:01,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1416372512, now seen corresponding path program 1 times [2023-11-29 00:36:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050392121] [2023-11-29 00:36:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:01,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:01,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:01,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:01,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 00:36:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:02,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:36:02,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:36:02,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:36:02,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050392121] [2023-11-29 00:36:02,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050392121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:36:02,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:02,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:36:02,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295983124] [2023-11-29 00:36:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:02,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:36:02,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:02,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:36:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:36:02,158 INFO L87 Difference]: Start difference. First operand 190 states and 245 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:02,308 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2023-11-29 00:36:02,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:36:02,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-29 00:36:02,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:02,311 INFO L225 Difference]: With dead ends: 377 [2023-11-29 00:36:02,311 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 00:36:02,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:36:02,314 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 36 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:02,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 597 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:36:02,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 00:36:02,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2023-11-29 00:36:02,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 178 states have (on average 1.2584269662921348) internal successors, (224), 187 states have internal predecessors, (224), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:36:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2023-11-29 00:36:02,331 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 61 [2023-11-29 00:36:02,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:02,332 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2023-11-29 00:36:02,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2023-11-29 00:36:02,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 00:36:02,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:02,335 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] [2023-11-29 00:36:02,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 00:36:02,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:02,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:02,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash -377861972, now seen corresponding path program 1 times [2023-11-29 00:36:02,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:02,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204886395] [2023-11-29 00:36:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:02,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:02,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:02,546 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:02,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 00:36:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:02,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:36:02,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:36:03,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:36:03,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204886395] [2023-11-29 00:36:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204886395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:36:03,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:36:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831379345] [2023-11-29 00:36:03,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:03,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:36:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:03,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:36:03,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:36:03,289 INFO L87 Difference]: Start difference. First operand 193 states and 240 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:03,794 INFO L93 Difference]: Finished difference Result 480 states and 602 transitions. [2023-11-29 00:36:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:36:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2023-11-29 00:36:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:03,798 INFO L225 Difference]: With dead ends: 480 [2023-11-29 00:36:03,798 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 00:36:03,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:36:03,800 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 83 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:03,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 481 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:36:03,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 00:36:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2023-11-29 00:36:03,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 286 states have internal predecessors, (341), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 00:36:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 367 transitions. [2023-11-29 00:36:03,823 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 367 transitions. Word has length 61 [2023-11-29 00:36:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:03,823 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 367 transitions. [2023-11-29 00:36:03,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 367 transitions. [2023-11-29 00:36:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 00:36:03,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:03,826 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] [2023-11-29 00:36:03,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 00:36:04,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:04,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:04,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:04,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1660471653, now seen corresponding path program 1 times [2023-11-29 00:36:04,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:04,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141247930] [2023-11-29 00:36:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:04,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:04,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:04,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:04,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 00:36:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:04,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:36:04,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:36:04,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:36:04,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:04,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141247930] [2023-11-29 00:36:04,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141247930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:36:04,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:04,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:36:04,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973610940] [2023-11-29 00:36:04,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:04,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:36:04,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:04,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:36:04,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:36:04,622 INFO L87 Difference]: Start difference. First operand 292 states and 367 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:36:04,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:04,717 INFO L93 Difference]: Finished difference Result 539 states and 688 transitions. [2023-11-29 00:36:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:36:04,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-11-29 00:36:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:04,721 INFO L225 Difference]: With dead ends: 539 [2023-11-29 00:36:04,721 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 00:36:04,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:36:04,723 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:04,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 665 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:36:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 00:36:04,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2023-11-29 00:36:04,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 273 states have (on average 1.2564102564102564) internal successors, (343), 288 states have internal predecessors, (343), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:36:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 370 transitions. [2023-11-29 00:36:04,745 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 370 transitions. Word has length 74 [2023-11-29 00:36:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:04,746 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 370 transitions. [2023-11-29 00:36:04,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:36:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 370 transitions. [2023-11-29 00:36:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 00:36:04,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:04,748 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 00:36:04,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 00:36:04,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:04,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:04,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:04,960 INFO L85 PathProgramCache]: Analyzing trace with hash -764244063, now seen corresponding path program 1 times [2023-11-29 00:36:04,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:04,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913637331] [2023-11-29 00:36:04,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:04,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:04,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:04,962 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:04,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 00:36:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:05,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:36:05,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:36:05,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:36:05,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:05,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913637331] [2023-11-29 00:36:05,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913637331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:36:05,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:36:05,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 00:36:05,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217224365] [2023-11-29 00:36:05,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:05,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:36:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:05,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:36:05,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:36:05,671 INFO L87 Difference]: Start difference. First operand 294 states and 370 transitions. Second operand has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:36:05,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:05,922 INFO L93 Difference]: Finished difference Result 550 states and 706 transitions. [2023-11-29 00:36:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:36:05,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2023-11-29 00:36:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:05,926 INFO L225 Difference]: With dead ends: 550 [2023-11-29 00:36:05,926 INFO L226 Difference]: Without dead ends: 303 [2023-11-29 00:36:05,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:36:05,928 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 7 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:05,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 665 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:36:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-29 00:36:05,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2023-11-29 00:36:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 280 states have (on average 1.2714285714285714) internal successors, (356), 295 states have internal predecessors, (356), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:36:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 383 transitions. [2023-11-29 00:36:05,946 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 383 transitions. Word has length 76 [2023-11-29 00:36:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:05,946 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 383 transitions. [2023-11-29 00:36:05,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:36:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 383 transitions. [2023-11-29 00:36:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:36:05,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:05,949 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-29 00:36:05,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 00:36:06,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:06,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:06,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:06,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1563744197, now seen corresponding path program 2 times [2023-11-29 00:36:06,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:06,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368306029] [2023-11-29 00:36:06,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:36:06,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:06,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:06,158 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:06,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 00:36:06,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 00:36:06,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:36:06,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:36:06,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:06,565 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:36:06,565 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:36:06,568 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 33 treesize of output 31 [2023-11-29 00:36:08,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:36:08,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2023-11-29 00:36:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 00:36:08,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:36:08,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:08,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368306029] [2023-11-29 00:36:08,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368306029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:36:08,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:36:08,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:36:08,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456475311] [2023-11-29 00:36:08,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:36:08,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:36:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:08,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:36:08,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:36:08,096 INFO L87 Difference]: Start difference. First operand 302 states and 383 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:36:12,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:36:16,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:36:20,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:36:24,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:36:29,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:36:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:29,166 INFO L93 Difference]: Finished difference Result 467 states and 607 transitions. [2023-11-29 00:36:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:36:29,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 80 [2023-11-29 00:36:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:29,172 INFO L225 Difference]: With dead ends: 467 [2023-11-29 00:36:29,172 INFO L226 Difference]: Without dead ends: 466 [2023-11-29 00:36:29,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:36:29,173 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 275 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:29,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 655 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 5 Unknown, 0 Unchecked, 21.0s Time] [2023-11-29 00:36:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-29 00:36:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 364. [2023-11-29 00:36:29,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 336 states have (on average 1.2797619047619047) internal successors, (430), 352 states have internal predecessors, (430), 16 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-29 00:36:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 464 transitions. [2023-11-29 00:36:29,197 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 464 transitions. Word has length 80 [2023-11-29 00:36:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:29,197 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 464 transitions. [2023-11-29 00:36:29,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:36:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 464 transitions. [2023-11-29 00:36:29,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 00:36:29,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:29,200 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:29,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:36:29,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:29,401 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:29,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:29,401 INFO L85 PathProgramCache]: Analyzing trace with hash -106248755, now seen corresponding path program 1 times [2023-11-29 00:36:29,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:29,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681271737] [2023-11-29 00:36:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:29,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:29,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:29,403 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:29,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 00:36:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:29,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:36:29,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:30,022 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:36:30,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:36:30,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:36:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681271737] [2023-11-29 00:36:30,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681271737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:36:30,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:36:30,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 00:36:30,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710361334] [2023-11-29 00:36:30,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:30,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:36:30,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:36:30,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:36:30,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:36:30,232 INFO L87 Difference]: Start difference. First operand 364 states and 464 transitions. Second operand has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:36:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:31,007 INFO L93 Difference]: Finished difference Result 701 states and 916 transitions. [2023-11-29 00:36:31,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:36:31,009 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 85 [2023-11-29 00:36:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:31,012 INFO L225 Difference]: With dead ends: 701 [2023-11-29 00:36:31,012 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 00:36:31,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:36:31,013 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 13 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:31,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1326 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:36:31,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 00:36:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 382. [2023-11-29 00:36:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 354 states have (on average 1.2824858757062148) internal successors, (454), 370 states have internal predecessors, (454), 16 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-29 00:36:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 488 transitions. [2023-11-29 00:36:31,047 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 488 transitions. Word has length 85 [2023-11-29 00:36:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:31,047 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 488 transitions. [2023-11-29 00:36:31,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:36:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 488 transitions. [2023-11-29 00:36:31,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 00:36:31,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:31,049 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-29 00:36:31,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 00:36:31,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:31,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 00:36:31,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:31,251 INFO L85 PathProgramCache]: Analyzing trace with hash 789125556, now seen corresponding path program 2 times [2023-11-29 00:36:31,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:36:31,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647952697] [2023-11-29 00:36:31,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:36:31,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:36:31,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:36:31,253 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:36:31,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b1ea09-2308-4980-86bd-931c2993e31e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process