./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme --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 78864722a29653368507db3b60ae2b93b33238a95b17a045203976708a818f43 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:48:09,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:48:09,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:48:09,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:48:09,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:48:09,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:48:09,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:48:09,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:48:09,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:48:09,666 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:48:09,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:48:09,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:48:09,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:48:09,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:48:09,670 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:48:09,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:48:09,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:48:09,671 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:48:09,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:48:09,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:48:09,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:48:09,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:48:09,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:48:09,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:48:09,675 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:48:09,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:48:09,676 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:48:09,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:48:09,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:48:09,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:48:09,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:48:09,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:48:09,681 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:48:09,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:09,682 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:48:09,682 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:48:09,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:48:09,683 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:48:09,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:48:09,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:48:09,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:48:09,684 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:48:09,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:48:09,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:48:09,686 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_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78864722a29653368507db3b60ae2b93b33238a95b17a045203976708a818f43 [2023-11-26 10:48:10,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:48:10,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:48:10,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:48:10,037 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:48:10,038 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:48:10,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound50.c [2023-11-26 10:48:13,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:48:13,402 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:48:13,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_unwindbound50.c [2023-11-26 10:48:13,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/data/7a8f2784c/1d344e54c3b944238d34038bb3f3ff8e/FLAG0aee829b0 [2023-11-26 10:48:13,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/data/7a8f2784c/1d344e54c3b944238d34038bb3f3ff8e [2023-11-26 10:48:13,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:48:13,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:48:13,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:13,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:48:13,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:48:13,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a9b2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13, skipping insertion in model container [2023-11-26 10:48:13,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,465 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:48:13,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:13,686 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:48:13,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:13,728 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:48:13,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13 WrapperNode [2023-11-26 10:48:13,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:13,730 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:13,730 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:48:13,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:48:13,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,781 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-11-26 10:48:13,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:13,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:48:13,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:48:13,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:48:13,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,813 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:48:13,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:48:13,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:48:13,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:48:13,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:48:13,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (1/1) ... [2023-11-26 10:48:13,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:13,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:13,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:48:13,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:48:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:48:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:48:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:48:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:48:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 10:48:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 10:48:13,959 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:48:13,962 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:48:14,432 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:48:14,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:48:14,482 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:48:14,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:14 BoogieIcfgContainer [2023-11-26 10:48:14,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:48:14,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:48:14,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:48:14,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:48:14,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:48:13" (1/3) ... [2023-11-26 10:48:14,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1624ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:14, skipping insertion in model container [2023-11-26 10:48:14,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:13" (2/3) ... [2023-11-26 10:48:14,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1624ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:14, skipping insertion in model container [2023-11-26 10:48:14,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:14" (3/3) ... [2023-11-26 10:48:14,495 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u2_unwindbound50.c [2023-11-26 10:48:14,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:48:14,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-26 10:48:14,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:48:14,595 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;@16914e0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:48:14,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-26 10:48:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 32 states have (on average 1.875) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:14,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 10:48:14,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:14,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 10:48:14,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:14,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash 118428, now seen corresponding path program 1 times [2023-11-26 10:48:14,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:14,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182620615] [2023-11-26 10:48:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:14,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:14,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:14,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182620615] [2023-11-26 10:48:14,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182620615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:14,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:14,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:14,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666549565] [2023-11-26 10:48:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:14,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:14,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:14,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:14,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:14,952 INFO L87 Difference]: Start difference. First operand has 60 states, 32 states have (on average 1.875) internal successors, (60), 56 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-26 10:48:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:15,079 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2023-11-26 10:48:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:48:15,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-26 10:48:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:15,092 INFO L225 Difference]: With dead ends: 123 [2023-11-26 10:48:15,092 INFO L226 Difference]: Without dead ends: 61 [2023-11-26 10:48:15,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:15,101 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 4 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:15,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 166 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:48:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-26 10:48:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-26 10:48:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 58 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2023-11-26 10:48:15,150 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 3 [2023-11-26 10:48:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:15,151 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2023-11-26 10:48:15,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-26 10:48:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2023-11-26 10:48:15,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:48:15,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:15,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:48:15,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:48:15,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:15,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash -766837873, now seen corresponding path program 1 times [2023-11-26 10:48:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:15,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703896149] [2023-11-26 10:48:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:15,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:15,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:15,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804722050] [2023-11-26 10:48:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:15,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:15,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:15,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:15,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:48:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:15,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:48:15,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:15,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:15,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:15,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703896149] [2023-11-26 10:48:15,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:15,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804722050] [2023-11-26 10:48:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804722050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:15,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:15,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:48:15,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978938696] [2023-11-26 10:48:15,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:15,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:15,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:15,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:15,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:15,264 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:15,543 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2023-11-26 10:48:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:48:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:15,546 INFO L225 Difference]: With dead ends: 95 [2023-11-26 10:48:15,546 INFO L226 Difference]: Without dead ends: 85 [2023-11-26 10:48:15,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:15,548 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:15,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 61 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:48:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-26 10:48:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2023-11-26 10:48:15,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 75 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2023-11-26 10:48:15,560 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 6 [2023-11-26 10:48:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:15,561 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2023-11-26 10:48:15,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2023-11-26 10:48:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:48:15,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:15,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:15,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:15,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:15,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:15,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:15,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1984700563, now seen corresponding path program 1 times [2023-11-26 10:48:15,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:15,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415024488] [2023-11-26 10:48:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:15,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:15,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:15,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538359689] [2023-11-26 10:48:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:15,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:15,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:15,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:15,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:48:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:15,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:48:15,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:15,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:15,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:15,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:15,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415024488] [2023-11-26 10:48:15,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538359689] [2023-11-26 10:48:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538359689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:48:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387283495] [2023-11-26 10:48:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:15,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:15,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:15,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:15,967 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-11-26 10:48:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:16,408 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2023-11-26 10:48:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-11-26 10:48:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:16,410 INFO L225 Difference]: With dead ends: 85 [2023-11-26 10:48:16,410 INFO L226 Difference]: Without dead ends: 83 [2023-11-26 10:48:16,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:16,412 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:16,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 59 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:48:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-26 10:48:16,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2023-11-26 10:48:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 75 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2023-11-26 10:48:16,423 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 10 [2023-11-26 10:48:16,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:16,423 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2023-11-26 10:48:16,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-11-26 10:48:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2023-11-26 10:48:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 10:48:16,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:16,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:16,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 10:48:16,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:16,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:16,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1396175367, now seen corresponding path program 1 times [2023-11-26 10:48:16,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:16,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723395940] [2023-11-26 10:48:16,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:16,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:16,643 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:16,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430872453] [2023-11-26 10:48:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:16,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:16,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:16,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:16,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:48:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:16,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:48:16,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:16,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:16,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:16,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723395940] [2023-11-26 10:48:16,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:16,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430872453] [2023-11-26 10:48:16,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430872453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:16,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:16,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585023221] [2023-11-26 10:48:16,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:16,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:16,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:16,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:16,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:16,838 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-26 10:48:16,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:16,948 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2023-11-26 10:48:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:16,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-26 10:48:16,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:16,954 INFO L225 Difference]: With dead ends: 82 [2023-11-26 10:48:16,954 INFO L226 Difference]: Without dead ends: 73 [2023-11-26 10:48:16,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:16,962 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 48 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:16,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 36 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:48:16,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-26 10:48:16,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2023-11-26 10:48:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 66 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2023-11-26 10:48:16,976 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 11 [2023-11-26 10:48:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:16,976 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2023-11-26 10:48:16,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-26 10:48:16,982 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2023-11-26 10:48:16,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 10:48:16,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:16,984 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] [2023-11-26 10:48:16,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:17,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:17,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:17,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1158687737, now seen corresponding path program 1 times [2023-11-26 10:48:17,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:17,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429082592] [2023-11-26 10:48:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:17,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:17,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:17,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664781124] [2023-11-26 10:48:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:17,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:17,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:17,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:17,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:48:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:17,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:48:17,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:17,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:17,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:17,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429082592] [2023-11-26 10:48:17,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:17,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664781124] [2023-11-26 10:48:17,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664781124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:17,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:17,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407033225] [2023-11-26 10:48:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:17,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:17,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:17,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:17,317 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:17,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:17,332 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2023-11-26 10:48:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:17,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-26 10:48:17,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:17,334 INFO L225 Difference]: With dead ends: 70 [2023-11-26 10:48:17,334 INFO L226 Difference]: Without dead ends: 69 [2023-11-26 10:48:17,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:17,336 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:17,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:48:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-26 10:48:17,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-26 10:48:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 65 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2023-11-26 10:48:17,347 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 20 [2023-11-26 10:48:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:17,348 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2023-11-26 10:48:17,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:17,349 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2023-11-26 10:48:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 10:48:17,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:17,350 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] [2023-11-26 10:48:17,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:17,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:17,557 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:17,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:17,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1559581551, now seen corresponding path program 1 times [2023-11-26 10:48:17,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:17,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030184806] [2023-11-26 10:48:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:17,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:17,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:17,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169151480] [2023-11-26 10:48:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:17,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:17,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:17,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:17,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:48:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:17,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:48:17,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:17,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:17,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:17,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030184806] [2023-11-26 10:48:17,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:17,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169151480] [2023-11-26 10:48:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169151480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:17,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:17,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:17,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681655659] [2023-11-26 10:48:17,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:17,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:17,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:17,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:17,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:17,670 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:17,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:17,689 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2023-11-26 10:48:17,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:17,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-26 10:48:17,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:17,690 INFO L225 Difference]: With dead ends: 78 [2023-11-26 10:48:17,691 INFO L226 Difference]: Without dead ends: 77 [2023-11-26 10:48:17,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:17,692 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:17,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 85 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:48:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-26 10:48:17,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2023-11-26 10:48:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 65 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2023-11-26 10:48:17,702 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 21 [2023-11-26 10:48:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:17,702 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2023-11-26 10:48:17,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2023-11-26 10:48:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 10:48:17,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:17,704 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] [2023-11-26 10:48:17,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-26 10:48:17,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:17,910 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:17,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1102347184, now seen corresponding path program 1 times [2023-11-26 10:48:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:17,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460366712] [2023-11-26 10:48:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:17,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:17,920 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:17,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380855302] [2023-11-26 10:48:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:17,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:17,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:17,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:17,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:48:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:17,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:48:17,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:19,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:19,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:19,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460366712] [2023-11-26 10:48:19,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:19,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380855302] [2023-11-26 10:48:19,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380855302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:19,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:19,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:48:19,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791610234] [2023-11-26 10:48:19,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:19,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:19,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:19,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:19,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:19,344 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:21,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:26,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:30,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:34,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:38,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:40,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:41,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:46,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:48,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:52,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-26 10:48:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:53,085 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2023-11-26 10:48:53,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:48:53,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-26 10:48:53,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:53,087 INFO L225 Difference]: With dead ends: 69 [2023-11-26 10:48:53,087 INFO L226 Difference]: Without dead ends: 68 [2023-11-26 10:48:53,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:53,088 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 46 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:53,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 62 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 33.6s Time] [2023-11-26 10:48:53,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-26 10:48:53,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-26 10:48:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 64 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2023-11-26 10:48:53,112 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 22 [2023-11-26 10:48:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:53,112 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2023-11-26 10:48:53,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2023-11-26 10:48:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 10:48:53,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:53,114 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] [2023-11-26 10:48:53,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:53,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:53,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:53,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:53,321 INFO L85 PathProgramCache]: Analyzing trace with hash -186975569, now seen corresponding path program 1 times [2023-11-26 10:48:53,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:53,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765861191] [2023-11-26 10:48:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:53,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:53,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775886122] [2023-11-26 10:48:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:53,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:53,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:53,350 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:53,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:48:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:53,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:48:53,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:53,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:53,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:53,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765861191] [2023-11-26 10:48:53,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:53,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775886122] [2023-11-26 10:48:53,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775886122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:53,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:53,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:48:53,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522530785] [2023-11-26 10:48:53,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:53,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:53,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:53,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:53,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:53,477 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:53,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:53,773 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2023-11-26 10:48:53,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:53,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-26 10:48:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:53,774 INFO L225 Difference]: With dead ends: 75 [2023-11-26 10:48:53,774 INFO L226 Difference]: Without dead ends: 74 [2023-11-26 10:48:53,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:53,775 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:53,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:48:53,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-26 10:48:53,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2023-11-26 10:48:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 66 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2023-11-26 10:48:53,793 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 23 [2023-11-26 10:48:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:53,793 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2023-11-26 10:48:53,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:53,793 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2023-11-26 10:48:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 10:48:53,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:53,794 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] [2023-11-26 10:48:53,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:53,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:53,995 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:53,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1501275246, now seen corresponding path program 1 times [2023-11-26 10:48:53,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:53,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331320667] [2023-11-26 10:48:53,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:53,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:54,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:54,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571328056] [2023-11-26 10:48:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:54,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:54,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:54,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:54,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:48:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:54,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:48:54,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:54,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:54,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:54,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331320667] [2023-11-26 10:48:54,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:54,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571328056] [2023-11-26 10:48:54,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571328056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:54,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:54,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:48:54,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657357202] [2023-11-26 10:48:54,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:54,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:54,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:54,316 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:54,603 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2023-11-26 10:48:54,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-26 10:48:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:54,604 INFO L225 Difference]: With dead ends: 77 [2023-11-26 10:48:54,605 INFO L226 Difference]: Without dead ends: 76 [2023-11-26 10:48:54,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:54,606 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:54,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:48:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-26 10:48:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2023-11-26 10:48:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 67 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2023-11-26 10:48:54,616 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 24 [2023-11-26 10:48:54,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:54,617 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2023-11-26 10:48:54,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2023-11-26 10:48:54,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 10:48:54,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:54,618 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] [2023-11-26 10:48:54,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-26 10:48:54,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:54,824 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:54,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:54,825 INFO L85 PathProgramCache]: Analyzing trace with hash 705107729, now seen corresponding path program 1 times [2023-11-26 10:48:54,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:54,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005628764] [2023-11-26 10:48:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:54,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:54,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:54,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268503031] [2023-11-26 10:48:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:54,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:54,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:54,837 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:54,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:48:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:54,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:48:54,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:54,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:54,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:54,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005628764] [2023-11-26 10:48:54,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:54,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268503031] [2023-11-26 10:48:54,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268503031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:54,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:54,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:48:54,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606073202] [2023-11-26 10:48:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:54,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:54,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:54,964 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:55,512 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2023-11-26 10:48:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:55,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-26 10:48:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:55,525 INFO L225 Difference]: With dead ends: 71 [2023-11-26 10:48:55,525 INFO L226 Difference]: Without dead ends: 64 [2023-11-26 10:48:55,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:55,527 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 49 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:55,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 40 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:48:55,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-26 10:48:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-26 10:48:55,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 60 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:55,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2023-11-26 10:48:55,573 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 25 [2023-11-26 10:48:55,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:55,574 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2023-11-26 10:48:55,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2023-11-26 10:48:55,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 10:48:55,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:55,575 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] [2023-11-26 10:48:55,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:55,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:48:55,776 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 10:48:55,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:55,777 INFO L85 PathProgramCache]: Analyzing trace with hash 685311989, now seen corresponding path program 1 times [2023-11-26 10:48:55,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:55,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588791971] [2023-11-26 10:48:55,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:55,796 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:55,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312570456] [2023-11-26 10:48:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:55,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:55,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 10:48:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:48:55,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:48:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:48:56,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:48:56,007 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:48:56,008 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-26 10:48:56,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-26 10:48:56,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-26 10:48:56,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-26 10:48:56,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-26 10:48:56,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-26 10:48:56,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-26 10:48:56,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-26 10:48:56,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-26 10:48:56,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-26 10:48:56,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-26 10:48:56,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-26 10:48:56,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-26 10:48:56,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-26 10:48:56,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-26 10:48:56,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-26 10:48:56,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-26 10:48:56,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-26 10:48:56,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-26 10:48:56,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-26 10:48:56,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-26 10:48:56,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-26 10:48:56,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-26 10:48:56,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-26 10:48:56,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:56,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 10:48:56,224 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:56,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:48:56,243 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-26 10:48:56,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:48:56 BoogieIcfgContainer [2023-11-26 10:48:56,254 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:48:56,254 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:48:56,254 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:48:56,255 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:48:56,255 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:14" (3/4) ... [2023-11-26 10:48:56,256 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 10:48:56,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-26 10:48:56,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:48:56,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:48:56,315 INFO L158 Benchmark]: Toolchain (without parser) took 42882.88ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 132.9MB in the end (delta: -13.5MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,316 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 94.0MB in the end (delta: 321.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:48:56,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.68ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 108.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.88ms. Allocated memory is still 163.6MB. Free memory was 108.1MB in the beginning and 106.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,317 INFO L158 Benchmark]: Boogie Preprocessor took 44.98ms. Allocated memory is still 163.6MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,317 INFO L158 Benchmark]: RCFGBuilder took 654.76ms. Allocated memory is still 163.6MB. Free memory was 104.7MB in the beginning and 88.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,318 INFO L158 Benchmark]: TraceAbstraction took 41768.17ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 49.2MB in the end (delta: 38.8MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,318 INFO L158 Benchmark]: Witness Printer took 60.41ms. Allocated memory is still 163.6MB. Free memory was 49.2MB in the beginning and 132.9MB in the end (delta: -83.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2023-11-26 10:48:56,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 94.0MB in the end (delta: 321.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.68ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 108.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.88ms. Allocated memory is still 163.6MB. Free memory was 108.1MB in the beginning and 106.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.98ms. Allocated memory is still 163.6MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.76ms. Allocated memory is still 163.6MB. Free memory was 104.7MB in the beginning and 88.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 41768.17ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 49.2MB in the end (delta: 38.8MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Witness Printer took 60.41ms. Allocated memory is still 163.6MB. Free memory was 49.2MB in the beginning and 132.9MB in the end (delta: -83.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 41]: integer overflow possible integer overflow possible We found a FailurePath: [L22] int counter = 0; [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [c=1, counter=0, x=1, y=3221225458, z=3221225458] [L33] EXPR counter++ VAL [c=1, counter=1, x=1, y=3221225458, z=3221225458] [L33] COND TRUE counter++<50 [L34] EXPR x*z VAL [c=1, counter=1, x=1, y=3221225458, z=3221225458] [L34] EXPR x*z - x VAL [c=1, counter=1, x=1, y=3221225458, z=3221225458] [L34] EXPR x*z - x - y VAL [c=1, counter=1, x=1, y=3221225458, z=3221225458] [L34] EXPR x*z - x - y + 1 VAL [c=1, counter=1, x=1, y=3221225458, z=3221225458] [L34] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [counter=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, counter=1, x=1, y=3221225458, z=3221225458] [L36] COND FALSE !(!(c < k)) VAL [c=1, counter=1, k=2, x=1, y=3221225458, z=3221225458] [L39] EXPR c + 1 [L39] c = c + 1 VAL [c=2, counter=1, k=2, x=1, y=3221225458, z=3221225458] [L40] EXPR x * z VAL [c=2, counter=1, k=2, x=1, y=3221225458, z=3221225458] [L40] EXPR x * z + 1 [L40] x = x * z + 1 VAL [c=2, counter=1, k=2, x=3221225459, y=3221225458, z=3221225458] [L41] y * z VAL [c=2, counter=1, k=2, x=3221225459, y=3221225458, z=3221225458] - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 41.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 36.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 35.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 660 SdHoareTripleChecker+Invalid, 35.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 347 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=2, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 155 ConstructedInterpolants, 1 QuantifiedInterpolants, 703 SizeOfPredicates, 4 NumberOfNonLiveVariables, 473 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:48:56,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4b4f32-cb20-4a97-b8eb-5d7bd4e54c4a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)