./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2616f51a0d79e0bd682803708141b0dc94462ecdbaee78ea9cc6b43878e4310d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:26:46,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:26:46,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:26:46,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:26:46,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:26:46,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:26:46,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:26:46,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:26:46,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:26:46,940 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:26:46,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:26:46,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:26:46,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:26:46,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:26:46,943 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:26:46,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:26:46,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:26:46,945 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:26:46,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:26:46,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:26:46,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:26:46,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:26:46,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:26:46,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:26:46,949 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:26:46,950 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:26:46,950 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:26:46,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:26:46,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:26:46,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:26:46,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:26:46,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:26:46,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:26:46,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:26:46,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:26:46,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:26:46,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:26:46,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:26:46,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:26:46,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:26:46,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:26:46,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:26:46,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:26:46,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:26:46,956 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_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2616f51a0d79e0bd682803708141b0dc94462ecdbaee78ea9cc6b43878e4310d [2023-11-29 05:26:47,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:26:47,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:26:47,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:26:47,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:26:47,214 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:26:47,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound50.c [2023-11-29 05:26:50,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:26:50,229 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:26:50,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound50.c [2023-11-29 05:26:50,235 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/data/23b514738/03a3e5ddaef7492f9d261cb3cd936559/FLAG4f116609e [2023-11-29 05:26:50,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/data/23b514738/03a3e5ddaef7492f9d261cb3cd936559 [2023-11-29 05:26:50,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:26:50,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:26:50,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:26:50,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:26:50,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:26:50,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75097f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50, skipping insertion in model container [2023-11-29 05:26:50,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,279 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:26:50,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:26:50,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:26:50,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:26:50,480 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:26:50,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50 WrapperNode [2023-11-29 05:26:50,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:26:50,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:26:50,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:26:50,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:26:50,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,517 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-29 05:26:50,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:26:50,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:26:50,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:26:50,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:26:50,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,542 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]. [2023-11-29 05:26:50,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:26:50,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:26:50,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:26:50,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:26:50,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (1/1) ... [2023-11-29 05:26:50,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:26:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:50,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:26:50,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:26:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:26:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:26:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:26:50,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:26:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:26:50,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:26:50,681 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:26:50,683 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:26:50,911 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:26:50,934 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:26:50,934 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:26:50,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:26:50 BoogieIcfgContainer [2023-11-29 05:26:50,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:26:50,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:26:50,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:26:50,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:26:50,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:26:50" (1/3) ... [2023-11-29 05:26:50,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329b15bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:26:50, skipping insertion in model container [2023-11-29 05:26:50,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:50" (2/3) ... [2023-11-29 05:26:50,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@329b15bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:26:50, skipping insertion in model container [2023-11-29 05:26:50,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:26:50" (3/3) ... [2023-11-29 05:26:50,944 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound50.c [2023-11-29 05:26:50,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:26:50,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 05:26:51,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:26:51,015 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;@3b1b2d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:26:51,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 05:26:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 05:26:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:26:51,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:51,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:26:51,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:51,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:51,034 INFO L85 PathProgramCache]: Analyzing trace with hash 123909867, now seen corresponding path program 1 times [2023-11-29 05:26:51,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:51,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777324773] [2023-11-29 05:26:51,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:51,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:51,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:51,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777324773] [2023-11-29 05:26:51,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777324773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:51,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:51,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:26:51,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187537490] [2023-11-29 05:26:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:51,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:26:51,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:26:51,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:26:51,231 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:51,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:51,259 INFO L93 Difference]: Finished difference Result 64 states and 104 transitions. [2023-11-29 05:26:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:26:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 05:26:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:51,267 INFO L225 Difference]: With dead ends: 64 [2023-11-29 05:26:51,267 INFO L226 Difference]: Without dead ends: 28 [2023-11-29 05:26:51,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:26:51,274 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:51,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-29 05:26:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-29 05:26:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-11-29 05:26:51,308 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2023-11-29 05:26:51,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:51,308 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-29 05:26:51,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-29 05:26:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:26:51,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:51,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:26:51,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:26:51,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:51,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:51,310 INFO L85 PathProgramCache]: Analyzing trace with hash 123969449, now seen corresponding path program 1 times [2023-11-29 05:26:51,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:51,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843463501] [2023-11-29 05:26:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:51,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:51,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843463501] [2023-11-29 05:26:51,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843463501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:51,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:51,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:26:51,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925537442] [2023-11-29 05:26:51,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:51,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:26:51,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:51,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:26:51,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:51,407 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:51,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:51,456 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2023-11-29 05:26:51,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:26:51,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 05:26:51,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:51,458 INFO L225 Difference]: With dead ends: 52 [2023-11-29 05:26:51,458 INFO L226 Difference]: Without dead ends: 32 [2023-11-29 05:26:51,459 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 [2023-11-29 05:26:51,460 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:51,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 87 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-29 05:26:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-29 05:26:51,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:51,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2023-11-29 05:26:51,469 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 5 [2023-11-29 05:26:51,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:51,469 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2023-11-29 05:26:51,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:51,470 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2023-11-29 05:26:51,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 05:26:51,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:51,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:51,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:26:51,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:51,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1809310676, now seen corresponding path program 1 times [2023-11-29 05:26:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:51,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681428059] [2023-11-29 05:26:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:51,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:51,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:51,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681428059] [2023-11-29 05:26:51,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681428059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:51,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:51,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:26:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121025702] [2023-11-29 05:26:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:51,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:51,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:51,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:26:51,599 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2023-11-29 05:26:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:51,795 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2023-11-29 05:26:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:26:51,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 [2023-11-29 05:26:51,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:51,797 INFO L225 Difference]: With dead ends: 56 [2023-11-29 05:26:51,797 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 05:26:51,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:51,798 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 32 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:51,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 121 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:26:51,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 05:26:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2023-11-29 05:26:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 34 states have internal predecessors, (41), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:26:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2023-11-29 05:26:51,811 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 10 [2023-11-29 05:26:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:51,812 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2023-11-29 05:26:51,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2023-11-29 05:26:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-29 05:26:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 05:26:51,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:51,813 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:51,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:26:51,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:51,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1809309426, now seen corresponding path program 1 times [2023-11-29 05:26:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:51,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72990173] [2023-11-29 05:26:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:51,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72990173] [2023-11-29 05:26:51,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72990173] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913880808] [2023-11-29 05:26:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:51,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:51,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:51,921 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:51,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:26:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:51,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:26:51,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:52,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:52,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913880808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:52,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:52,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2023-11-29 05:26:52,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445885770] [2023-11-29 05:26:52,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:52,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:26:52,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:52,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:26:52,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:52,032 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2023-11-29 05:26:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:52,067 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2023-11-29 05:26:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 [2023-11-29 05:26:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:52,069 INFO L225 Difference]: With dead ends: 57 [2023-11-29 05:26:52,069 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 05:26:52,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:26:52,071 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:52,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 76 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:52,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 05:26:52,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2023-11-29 05:26:52,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 33 states have internal predecessors, (40), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:26:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2023-11-29 05:26:52,085 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 64 transitions. Word has length 10 [2023-11-29 05:26:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:52,085 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 64 transitions. [2023-11-29 05:26:52,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2023-11-29 05:26:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-11-29 05:26:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:26:52,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:52,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:52,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:52,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:52,293 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:52,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:52,293 INFO L85 PathProgramCache]: Analyzing trace with hash -254056039, now seen corresponding path program 1 times [2023-11-29 05:26:52,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:52,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943647267] [2023-11-29 05:26:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:52,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:52,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:52,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943647267] [2023-11-29 05:26:52,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943647267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:52,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:52,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:26:52,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532857022] [2023-11-29 05:26:52,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:52,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:26:52,386 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2023-11-29 05:26:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:52,452 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2023-11-29 05:26:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:26:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 [2023-11-29 05:26:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:52,454 INFO L225 Difference]: With dead ends: 57 [2023-11-29 05:26:52,454 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 05:26:52,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:52,456 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 10 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:52,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 126 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 05:26:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2023-11-29 05:26:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 36 states have internal predecessors, (43), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:26:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 67 transitions. [2023-11-29 05:26:52,467 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 67 transitions. Word has length 11 [2023-11-29 05:26:52,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:52,468 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 67 transitions. [2023-11-29 05:26:52,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2023-11-29 05:26:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 67 transitions. [2023-11-29 05:26:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:26:52,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:52,469 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:52,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:26:52,469 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:52,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash -254017310, now seen corresponding path program 1 times [2023-11-29 05:26:52,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:52,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714582813] [2023-11-29 05:26:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:52,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:52,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714582813] [2023-11-29 05:26:52,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714582813] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:52,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700686706] [2023-11-29 05:26:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:52,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:52,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:52,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:26:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:52,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:26:52,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:52,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:52,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700686706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:52,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:52,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2023-11-29 05:26:52,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445211444] [2023-11-29 05:26:52,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:52,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:26:52,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:52,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:26:52,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:52,669 INFO L87 Difference]: Start difference. First operand 51 states and 67 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2023-11-29 05:26:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:52,717 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2023-11-29 05:26:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:26:52,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 [2023-11-29 05:26:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:52,718 INFO L225 Difference]: With dead ends: 56 [2023-11-29 05:26:52,718 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 05:26:52,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:26:52,720 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 11 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:52,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 108 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:52,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 05:26:52,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2023-11-29 05:26:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 35 states have internal predecessors, (42), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:26:52,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 66 transitions. [2023-11-29 05:26:52,730 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 66 transitions. Word has length 11 [2023-11-29 05:26:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:52,731 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 66 transitions. [2023-11-29 05:26:52,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2023-11-29 05:26:52,731 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-29 05:26:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:26:52,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:52,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:52,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:26:52,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:52,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:52,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:52,936 INFO L85 PathProgramCache]: Analyzing trace with hash 302744435, now seen corresponding path program 1 times [2023-11-29 05:26:52,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:52,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150548465] [2023-11-29 05:26:52,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:52,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:53,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:53,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150548465] [2023-11-29 05:26:53,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150548465] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:53,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142705370] [2023-11-29 05:26:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:53,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:53,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:53,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:53,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:26:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:53,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:26:53,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:53,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:53,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142705370] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:53,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:26:53,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2023-11-29 05:26:53,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641620057] [2023-11-29 05:26:53,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:53,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:26:53,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:53,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:26:53,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:26:53,156 INFO L87 Difference]: Start difference. First operand 50 states and 66 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:53,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:53,272 INFO L93 Difference]: Finished difference Result 92 states and 119 transitions. [2023-11-29 05:26:53,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:26:53,273 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 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 14 [2023-11-29 05:26:53,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:53,274 INFO L225 Difference]: With dead ends: 92 [2023-11-29 05:26:53,274 INFO L226 Difference]: Without dead ends: 74 [2023-11-29 05:26:53,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:26:53,276 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 32 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:53,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 136 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-29 05:26:53,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 64. [2023-11-29 05:26:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 49 states have internal predecessors, (58), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:26:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2023-11-29 05:26:53,288 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 14 [2023-11-29 05:26:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:53,288 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2023-11-29 05:26:53,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2023-11-29 05:26:53,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 05:26:53,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:53,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:53,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:26:53,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:26:53,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:53,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:53,501 INFO L85 PathProgramCache]: Analyzing trace with hash 795193831, now seen corresponding path program 1 times [2023-11-29 05:26:53,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:53,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760709886] [2023-11-29 05:26:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:53,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:53,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:53,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760709886] [2023-11-29 05:26:53,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760709886] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:53,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605699188] [2023-11-29 05:26:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:53,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:53,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:53,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:53,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:26:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:53,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:26:53,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:53,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:53,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605699188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:53,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:53,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 13 [2023-11-29 05:26:53,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671980457] [2023-11-29 05:26:53,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:53,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:53,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:53,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:53,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:26:53,723 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:53,789 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2023-11-29 05:26:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:26:53,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2023-11-29 05:26:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:53,793 INFO L225 Difference]: With dead ends: 64 [2023-11-29 05:26:53,794 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 05:26:53,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:26:53,795 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 32 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:53,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 88 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 05:26:53,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 47. [2023-11-29 05:26:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 states have internal predecessors, (46), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2023-11-29 05:26:53,806 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 15 [2023-11-29 05:26:53,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:53,806 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2023-11-29 05:26:53,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2023-11-29 05:26:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 05:26:53,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:53,808 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:53,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:26:54,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:54,012 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:26:54,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1118794946, now seen corresponding path program 1 times [2023-11-29 05:26:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:54,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689257880] [2023-11-29 05:26:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:54,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689257880] [2023-11-29 05:26:54,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689257880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51587488] [2023-11-29 05:26:54,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:54,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:54,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:54,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:54,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:26:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:54,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:26:54,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:54,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:26:54,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51587488] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:54,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:26:54,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2023-11-29 05:26:54,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314246419] [2023-11-29 05:26:54,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:54,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 05:26:54,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:54,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 05:26:54,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:26:54,333 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 19 states, 18 states have (on average 2.388888888888889) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:58,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:27:02,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:02,368 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2023-11-29 05:27:02,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:27:02,369 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.388888888888889) internal successors, (43), 19 states have internal predecessors, (43), 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 16 [2023-11-29 05:27:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:02,370 INFO L225 Difference]: With dead ends: 86 [2023-11-29 05:27:02,370 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 05:27:02,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2023-11-29 05:27:02,372 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 118 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:02,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 171 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-29 05:27:02,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 05:27:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2023-11-29 05:27:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 57 states have internal predecessors, (66), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:27:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2023-11-29 05:27:02,387 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 16 [2023-11-29 05:27:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:02,387 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2023-11-29 05:27:02,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.388888888888889) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:27:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2023-11-29 05:27:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 05:27:02,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:02,392 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 05:27:02,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:27:02,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 05:27:02,593 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:27:02,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:02,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1351280755, now seen corresponding path program 1 times [2023-11-29 05:27:02,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:02,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509275771] [2023-11-29 05:27:02,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:02,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:02,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:02,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111495408] [2023-11-29 05:27:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:02,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:02,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:02,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:02,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:27:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:27:02,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:27:02,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 6 proven. 171 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 05:27:02,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 05:27:03,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:03,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509275771] [2023-11-29 05:27:03,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:03,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111495408] [2023-11-29 05:27:03,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111495408] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:03,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:03,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 05:27:03,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120217720] [2023-11-29 05:27:03,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:03,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 05:27:03,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 05:27:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:27:03,217 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 05:27:07,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:11,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:15,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:16,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:24,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:27:29,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:27:31,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:31,125 INFO L93 Difference]: Finished difference Result 166 states and 222 transitions. [2023-11-29 05:27:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 05:27:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 93 [2023-11-29 05:27:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:31,128 INFO L225 Difference]: With dead ends: 166 [2023-11-29 05:27:31,128 INFO L226 Difference]: Without dead ends: 165 [2023-11-29 05:27:31,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=360, Invalid=1046, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 05:27:31,130 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 101 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 17 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:31,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 197 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 206 Invalid, 5 Unknown, 0 Unchecked, 27.7s Time] [2023-11-29 05:27:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-29 05:27:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 127. [2023-11-29 05:27:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 84 states have internal predecessors, (96), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 05:27:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 168 transitions. [2023-11-29 05:27:31,156 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 168 transitions. Word has length 93 [2023-11-29 05:27:31,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:31,157 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 168 transitions. [2023-11-29 05:27:31,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 05:27:31,158 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 168 transitions. [2023-11-29 05:27:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-11-29 05:27:31,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:31,164 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:31,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:27:31,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:27:31,366 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:27:31,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:31,366 INFO L85 PathProgramCache]: Analyzing trace with hash -379717099, now seen corresponding path program 1 times [2023-11-29 05:27:31,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:31,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594643714] [2023-11-29 05:27:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:31,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:31,401 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:31,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667914482] [2023-11-29 05:27:31,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:31,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:31,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:31,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:31,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:27:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:27:31,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:27:31,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2718 backedges. 0 proven. 2358 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-29 05:27:31,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2718 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-11-29 05:27:32,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:32,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594643714] [2023-11-29 05:27:32,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:32,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667914482] [2023-11-29 05:27:32,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667914482] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:32,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:32,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-11-29 05:27:32,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993256594] [2023-11-29 05:27:32,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:32,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 05:27:32,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 05:27:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2023-11-29 05:27:32,449 INFO L87 Difference]: Start difference. First operand 127 states and 168 transitions. Second operand has 32 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 32 states have internal predecessors, (110), 12 states have call successors, (72), 7 states have call predecessors, (72), 7 states have return successors, (72), 12 states have call predecessors, (72), 12 states have call successors, (72) [2023-11-29 05:27:39,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:45,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:27:49,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:27:53,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:27:57,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:02,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:06,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:28:08,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:28:11,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:13,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:15,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:21,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:28:25,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:29,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:28:33,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:28:35,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 05:28:36,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:36,780 INFO L93 Difference]: Finished difference Result 339 states and 465 transitions. [2023-11-29 05:28:36,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 05:28:36,780 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 32 states have internal predecessors, (110), 12 states have call successors, (72), 7 states have call predecessors, (72), 7 states have return successors, (72), 12 states have call predecessors, (72), 12 states have call successors, (72) Word has length 227 [2023-11-29 05:28:36,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:36,784 INFO L225 Difference]: With dead ends: 339 [2023-11-29 05:28:36,784 INFO L226 Difference]: Without dead ends: 338 [2023-11-29 05:28:36,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1095, Invalid=2445, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 05:28:36,786 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 214 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 30 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:36,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 341 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 354 Invalid, 10 Unknown, 0 Unchecked, 63.9s Time] [2023-11-29 05:28:36,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-29 05:28:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 255. [2023-11-29 05:28:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 156 states have (on average 1.1282051282051282) internal successors, (176), 156 states have internal predecessors, (176), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 05:28:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 344 transitions. [2023-11-29 05:28:36,837 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 344 transitions. Word has length 227 [2023-11-29 05:28:36,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:36,838 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 344 transitions. [2023-11-29 05:28:36,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 32 states have internal predecessors, (110), 12 states have call successors, (72), 7 states have call predecessors, (72), 7 states have return successors, (72), 12 states have call predecessors, (72), 12 states have call successors, (72) [2023-11-29 05:28:36,839 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 344 transitions. [2023-11-29 05:28:36,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-29 05:28:36,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:36,844 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 05:28:36,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 05:28:37,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 05:28:37,045 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:28:37,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:37,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1532411315, now seen corresponding path program 1 times [2023-11-29 05:28:37,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:37,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7454396] [2023-11-29 05:28:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:37,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:37,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:37,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551781273] [2023-11-29 05:28:37,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:37,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:37,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:37,078 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:37,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:28:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:37,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:28:37,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2764 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2718 trivial. 0 not checked. [2023-11-29 05:28:37,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2764 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2718 trivial. 0 not checked. [2023-11-29 05:28:37,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:37,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7454396] [2023-11-29 05:28:37,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:37,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551781273] [2023-11-29 05:28:37,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551781273] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:28:37,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:28:37,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-29 05:28:37,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281844492] [2023-11-29 05:28:37,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:37,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 05:28:37,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:37,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 05:28:37,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:28:37,547 INFO L87 Difference]: Start difference. First operand 255 states and 344 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 05:28:37,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:37,834 INFO L93 Difference]: Finished difference Result 412 states and 549 transitions. [2023-11-29 05:28:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 05:28:37,835 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 246 [2023-11-29 05:28:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:37,837 INFO L225 Difference]: With dead ends: 412 [2023-11-29 05:28:37,837 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 05:28:37,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 05:28:37,839 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 122 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:37,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 277 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:28:37,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 05:28:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 285. [2023-11-29 05:28:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 186 states have (on average 1.1397849462365592) internal successors, (212), 186 states have internal predecessors, (212), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 05:28:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 380 transitions. [2023-11-29 05:28:37,884 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 380 transitions. Word has length 246 [2023-11-29 05:28:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:37,884 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 380 transitions. [2023-11-29 05:28:37,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 states have internal predecessors, (67), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 05:28:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 380 transitions. [2023-11-29 05:28:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-11-29 05:28:37,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:37,890 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 11, 11, 11, 10, 10, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2023-11-29 05:28:37,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:28:38,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 05:28:38,092 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:28:38,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1415355475, now seen corresponding path program 2 times [2023-11-29 05:28:38,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:38,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16851667] [2023-11-29 05:28:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:38,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:38,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:38,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560650177] [2023-11-29 05:28:38,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:28:38,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:38,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:38,118 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:38,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:28:38,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:28:38,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:28:38,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:28:38,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2983 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 2718 trivial. 0 not checked. [2023-11-29 05:28:38,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2983 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 2718 trivial. 0 not checked. [2023-11-29 05:28:39,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:39,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16851667] [2023-11-29 05:28:39,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:39,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560650177] [2023-11-29 05:28:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560650177] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:28:39,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:28:39,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 46 [2023-11-29 05:28:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975432197] [2023-11-29 05:28:39,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:39,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-29 05:28:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:39,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-29 05:28:39,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 05:28:39,061 INFO L87 Difference]: Start difference. First operand 285 states and 380 transitions. Second operand has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 46 states have internal predecessors, (127), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 05:28:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:40,115 INFO L93 Difference]: Finished difference Result 508 states and 663 transitions. [2023-11-29 05:28:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 05:28:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 46 states have internal predecessors, (127), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 276 [2023-11-29 05:28:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:40,118 INFO L225 Difference]: With dead ends: 508 [2023-11-29 05:28:40,118 INFO L226 Difference]: Without dead ends: 408 [2023-11-29 05:28:40,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2023-11-29 05:28:40,123 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 333 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:40,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 308 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:28:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-11-29 05:28:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 345. [2023-11-29 05:28:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 246 states have (on average 1.1544715447154472) internal successors, (284), 246 states have internal predecessors, (284), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 05:28:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 452 transitions. [2023-11-29 05:28:40,161 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 452 transitions. Word has length 276 [2023-11-29 05:28:40,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:40,161 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 452 transitions. [2023-11-29 05:28:40,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 46 states have internal predecessors, (127), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 05:28:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 452 transitions. [2023-11-29 05:28:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-11-29 05:28:40,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:40,166 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 23, 23, 23, 22, 22, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2023-11-29 05:28:40,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:28:40,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:40,367 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 05:28:40,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1946136173, now seen corresponding path program 3 times [2023-11-29 05:28:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044676525] [2023-11-29 05:28:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:40,396 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:40,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620982449] [2023-11-29 05:28:40,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:28:40,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:40,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:40,398 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:40,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:28:40,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:28:40,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:28:40,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:28:40,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3961 backedges. 783 proven. 0 refuted. 0 times theorem prover too weak. 3178 trivial. 0 not checked. [2023-11-29 05:28:40,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:28:40,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:40,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044676525] [2023-11-29 05:28:40,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:40,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620982449] [2023-11-29 05:28:40,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620982449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:40,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:40,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:28:40,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822850505] [2023-11-29 05:28:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:40,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:28:40,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:28:40,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:28:40,549 INFO L87 Difference]: Start difference. First operand 345 states and 452 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:28:42,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:42,028 INFO L93 Difference]: Finished difference Result 349 states and 456 transitions. [2023-11-29 05:28:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:28:42,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 336 [2023-11-29 05:28:42,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:42,030 INFO L225 Difference]: With dead ends: 349 [2023-11-29 05:28:42,030 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:28:42,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:28:42,032 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:42,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 71 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:28:42,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:28:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:28:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:28:42,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 336 [2023-11-29 05:28:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:42,033 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:28:42,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 05:28:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:28:42,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:28:42,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-29 05:28:42,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-29 05:28:42,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-29 05:28:42,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-29 05:28:42,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:28:42,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:42,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:28:44,283 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2023-11-29 05:28:44,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-29 05:28:44,283 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2023-11-29 05:28:44,283 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 38 56) the Hoare annotation is: (and (<= ~counter~0 2147483641) (<= 0 (+ ~counter~0 2147483647))) [2023-11-29 05:28:44,283 INFO L899 garLoopResultBuilder]: For program point L44(lines 38 56) no Hoare annotation was computed. [2023-11-29 05:28:44,284 INFO L895 garLoopResultBuilder]: At program point L40(line 40) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-29 05:28:44,284 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2023-11-29 05:28:44,284 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,284 INFO L899 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2023-11-29 05:28:44,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-29 05:28:44,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:28:44,284 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-29 05:28:44,285 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,285 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:28:44,285 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-11-29 05:28:44,285 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-29 05:28:44,285 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-29 05:28:44,285 INFO L899 garLoopResultBuilder]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2023-11-29 05:28:44,285 INFO L902 garLoopResultBuilder]: At program point L38-4(lines 38 56) the Hoare annotation is: true [2023-11-29 05:28:44,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-29 05:28:44,286 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2023-11-29 05:28:44,286 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2023-11-29 05:28:44,286 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 35) no Hoare annotation was computed. [2023-11-29 05:28:44,286 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-29 05:28:44,286 INFO L895 garLoopResultBuilder]: At program point L30-5(lines 30 35) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,286 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,286 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,286 INFO L895 garLoopResultBuilder]: At program point L39-1(line 39) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483647)) (<= ~counter~0 50)) [2023-11-29 05:28:44,286 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-11-29 05:28:44,287 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-11-29 05:28:44,287 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-29 05:28:44,287 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-29 05:28:44,290 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:44,292 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:28:44,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:28:44 BoogieIcfgContainer [2023-11-29 05:28:44,302 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:28:44,302 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:28:44,302 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:28:44,303 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:28:44,303 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:26:50" (3/4) ... [2023-11-29 05:28:44,305 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:28:44,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 05:28:44,313 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 05:28:44,313 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 05:28:44,313 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:28:44,313 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:28:44,393 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:28:44,393 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:28:44,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:28:44,394 INFO L158 Benchmark]: Toolchain (without parser) took 114143.85ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 129.3MB in the beginning and 66.3MB in the end (delta: 63.0MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,394 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:28:44,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.85ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 117.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 165.7MB. Free memory was 117.7MB in the beginning and 116.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,395 INFO L158 Benchmark]: Boogie Preprocessor took 37.05ms. Allocated memory is still 165.7MB. Free memory was 116.0MB in the beginning and 114.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,396 INFO L158 Benchmark]: RCFGBuilder took 379.06ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 98.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,396 INFO L158 Benchmark]: TraceAbstraction took 113364.67ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 97.9MB in the beginning and 71.6MB in the end (delta: 26.3MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,397 INFO L158 Benchmark]: Witness Printer took 91.17ms. Allocated memory is still 199.2MB. Free memory was 71.6MB in the beginning and 66.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 05:28:44,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.85ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 117.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 165.7MB. Free memory was 117.7MB in the beginning and 116.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.05ms. Allocated memory is still 165.7MB. Free memory was 116.0MB in the beginning and 114.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.06ms. Allocated memory is still 165.7MB. Free memory was 113.9MB in the beginning and 98.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 113364.67ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 97.9MB in the beginning and 71.6MB in the end (delta: 26.3MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. * Witness Printer took 91.17ms. Allocated memory is still 199.2MB. Free memory was 71.6MB in the beginning and 66.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 113.3s, OverallIterations: 14, TraceHistogramMax: 36, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 103.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 1034 SdHoareTripleChecker+Valid, 101.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1034 mSDsluCounter, 2150 SdHoareTripleChecker+Invalid, 101.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1766 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1308 IncrementalHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 384 mSDtfsCounter, 1308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2281 GetRequests, 1959 SyntacticMatches, 0 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3139 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=13, InterpolantAutomatonStates: 250, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 267 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 191 PreInvPairs, 317 NumberOfFragments, 76 HoareAnnotationTreeSize, 191 FomulaSimplifications, 48819 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 12 FomulaSimplificationsInter, 1025 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1341 NumberOfCodeBlocks, 1031 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2188 ConstructedInterpolants, 0 QuantifiedInterpolants, 3804 SizeOfPredicates, 66 NumberOfNonLiveVariables, 2165 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 25 InterpolantComputations, 8 PerfectInterpolantSequences, 18126/21532 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((0 <= (counter + 2147483647)) && (counter <= 50)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((counter <= 2147483641) && (0 <= (counter + 2147483647))) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:28:44,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcedd8-d730-4605-8e1c-b7b4ea3f8a61/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE