./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/geo2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/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_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/geo2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/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_1bc50853-2292-46c9-ab52-21a06f5e483a/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 e871fa33b0334d5a32c7b72bf8c566167ee8ba89fea0452fc9132a1c10a2cca9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:00:26,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:00:26,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:00:26,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:00:26,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:00:26,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:00:26,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:00:26,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:00:26,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:00:26,609 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:00:26,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:00:26,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:00:26,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:00:26,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:00:26,613 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:00:26,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:00:26,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:00:26,615 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:00:26,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:00:26,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:00:26,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:00:26,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:00:26,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:00:26,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:00:26,619 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:00:26,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:00:26,620 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:00:26,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:00:26,622 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:00:26,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:00:26,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:00:26,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:00:26,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:00:26,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:00:26,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:00:26,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:00:26,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:00:26,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:00:26,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:00:26,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:00:26,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:00:26,628 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:00:26,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:00:26,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:00:26,628 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_1bc50853-2292-46c9-ab52-21a06f5e483a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871fa33b0334d5a32c7b72bf8c566167ee8ba89fea0452fc9132a1c10a2cca9 [2023-11-29 06:00:26,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:00:26,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:00:26,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:00:26,910 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:00:26,911 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:00:26,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench/geo2-ll.c [2023-11-29 06:00:29,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:00:29,967 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:00:29,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/sv-benchmarks/c/nla-digbench/geo2-ll.c [2023-11-29 06:00:29,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/data/798d08407/64a8aba3826347c384e8a42470cdfbf0/FLAGd7437099c [2023-11-29 06:00:29,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/data/798d08407/64a8aba3826347c384e8a42470cdfbf0 [2023-11-29 06:00:29,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:00:29,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:00:29,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:00:29,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:00:30,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:00:30,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:00:29" (1/1) ... [2023-11-29 06:00:30,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1880f167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30, skipping insertion in model container [2023-11-29 06:00:30,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:00:29" (1/1) ... [2023-11-29 06:00:30,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:00:30,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:00:30,204 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:00:30,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:00:30,235 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:00:30,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30 WrapperNode [2023-11-29 06:00:30,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:00:30,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:00:30,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:00:30,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:00:30,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,266 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-11-29 06:00:30,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:00:30,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:00:30,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:00:30,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:00:30,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,290 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 06:00:30,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:00:30,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:00:30,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:00:30,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:00:30,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (1/1) ... [2023-11-29 06:00:30,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:00:30,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:30,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:00:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:00:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:00:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:00:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:00:30,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:00:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:00:30,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:00:30,432 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:00:30,435 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:00:30,713 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:00:30,743 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:00:30,743 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:00:30,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:00:30 BoogieIcfgContainer [2023-11-29 06:00:30,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:00:30,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:00:30,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:00:30,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:00:30,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:00:29" (1/3) ... [2023-11-29 06:00:30,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c9f320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:00:30, skipping insertion in model container [2023-11-29 06:00:30,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:00:30" (2/3) ... [2023-11-29 06:00:30,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c9f320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:00:30, skipping insertion in model container [2023-11-29 06:00:30,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:00:30" (3/3) ... [2023-11-29 06:00:30,754 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll.c [2023-11-29 06:00:30,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:00:30,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 06:00:30,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:00:30,840 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;@49892bd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:00:30,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 06:00:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 63 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 06:00:30,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:30,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 06:00:30,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:30,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:30,859 INFO L85 PathProgramCache]: Analyzing trace with hash 126692, now seen corresponding path program 1 times [2023-11-29 06:00:30,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:30,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606627909] [2023-11-29 06:00:30,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:30,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:31,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:31,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606627909] [2023-11-29 06:00:31,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:00:31,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041454189] [2023-11-29 06:00:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:31,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:31,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:31,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:31,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:00:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:31,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:00:31,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:31,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:31,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041454189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:31,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:31,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:00:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003372796] [2023-11-29 06:00:31,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:31,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:00:31,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:31,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:00:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:00:31,156 INFO L87 Difference]: Start difference. First operand has 67 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 63 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:31,191 INFO L93 Difference]: Finished difference Result 133 states and 143 transitions. [2023-11-29 06:00:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:00:31,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 06:00:31,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:31,202 INFO L225 Difference]: With dead ends: 133 [2023-11-29 06:00:31,202 INFO L226 Difference]: Without dead ends: 64 [2023-11-29 06:00:31,206 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 06:00:31,210 INFO L413 NwaCegarLoop]: 66 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, 66 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 06:00:31,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:00:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-29 06:00:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-29 06:00:31,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 34 states have (on average 1.8235294117647058) internal successors, (62), 61 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:00:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2023-11-29 06:00:31,255 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 3 [2023-11-29 06:00:31,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:31,255 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2023-11-29 06:00:31,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2023-11-29 06:00:31,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 06:00:31,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:31,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 06:00:31,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:00:31,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:00:31,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:31,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:31,465 INFO L85 PathProgramCache]: Analyzing trace with hash 125283, now seen corresponding path program 1 times [2023-11-29 06:00:31,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:31,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788199182] [2023-11-29 06:00:31,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:31,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:31,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:31,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823621813] [2023-11-29 06:00:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:31,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:31,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:31,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:31,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:00:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:31,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:00:31,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:31,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:31,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:31,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788199182] [2023-11-29 06:00:31,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:31,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823621813] [2023-11-29 06:00:31,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823621813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:31,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:31,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:00:31,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131808361] [2023-11-29 06:00:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:31,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:31,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:31,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:31,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:31,562 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:31,742 INFO L93 Difference]: Finished difference Result 119 states and 120 transitions. [2023-11-29 06:00:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:31,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 06:00:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:31,745 INFO L225 Difference]: With dead ends: 119 [2023-11-29 06:00:31,745 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 06:00:31,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:31,747 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 44 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:31,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 36 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:00:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 06:00:31,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 87. [2023-11-29 06:00:31,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.7321428571428572) internal successors, (97), 83 states have internal predecessors, (97), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:31,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2023-11-29 06:00:31,762 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 3 [2023-11-29 06:00:31,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:31,762 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2023-11-29 06:00:31,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:31,763 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2023-11-29 06:00:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 06:00:31,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:31,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 06:00:31,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:00:31,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:31,965 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:31,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:31,966 INFO L85 PathProgramCache]: Analyzing trace with hash 3883818, now seen corresponding path program 1 times [2023-11-29 06:00:31,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:31,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653192557] [2023-11-29 06:00:31,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:31,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:31,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:31,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113239563] [2023-11-29 06:00:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:31,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:31,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:31,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:31,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:00:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:32,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:00:32,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:32,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:32,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653192557] [2023-11-29 06:00:32,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113239563] [2023-11-29 06:00:32,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113239563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:32,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:32,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:00:32,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809902954] [2023-11-29 06:00:32,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:32,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:32,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:32,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:32,050 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:32,181 INFO L93 Difference]: Finished difference Result 111 states and 112 transitions. [2023-11-29 06:00:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:32,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-29 06:00:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:32,183 INFO L225 Difference]: With dead ends: 111 [2023-11-29 06:00:32,183 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 06:00:32,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:32,185 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 35 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:32,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 44 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:00:32,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 06:00:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2023-11-29 06:00:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.603448275862069) internal successors, (93), 85 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2023-11-29 06:00:32,198 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 4 [2023-11-29 06:00:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:32,198 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2023-11-29 06:00:32,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2023-11-29 06:00:32,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 06:00:32,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:32,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:32,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:00:32,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:32,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:32,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:32,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1951431671, now seen corresponding path program 1 times [2023-11-29 06:00:32,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:32,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341467770] [2023-11-29 06:00:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:32,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:32,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468885784] [2023-11-29 06:00:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:32,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:32,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:32,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:32,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:00:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:32,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:00:32,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:32,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:32,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:32,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341467770] [2023-11-29 06:00:32,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:32,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468885784] [2023-11-29 06:00:32,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468885784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:32,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:32,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:00:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989545070] [2023-11-29 06:00:32,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:32,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:32,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:32,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:32,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:32,502 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:32,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:32,624 INFO L93 Difference]: Finished difference Result 107 states and 108 transitions. [2023-11-29 06:00:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:32,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-11-29 06:00:32,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:32,626 INFO L225 Difference]: With dead ends: 107 [2023-11-29 06:00:32,626 INFO L226 Difference]: Without dead ends: 104 [2023-11-29 06:00:32,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:32,627 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 31 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:32,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 43 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:00:32,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-29 06:00:32,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2023-11-29 06:00:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 87 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2023-11-29 06:00:32,637 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 9 [2023-11-29 06:00:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:32,637 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2023-11-29 06:00:32,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2023-11-29 06:00:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 06:00:32,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:32,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:32,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:00:32,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:32,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:32,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:32,841 INFO L85 PathProgramCache]: Analyzing trace with hash -364839600, now seen corresponding path program 1 times [2023-11-29 06:00:32,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:32,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001367400] [2023-11-29 06:00:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:32,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:32,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:32,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646400383] [2023-11-29 06:00:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:32,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:32,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:32,851 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:32,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:00:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:32,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:00:32,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:32,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001367400] [2023-11-29 06:00:32,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:32,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646400383] [2023-11-29 06:00:32,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646400383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:32,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:32,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:00:32,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668772792] [2023-11-29 06:00:32,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:32,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:32,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:32,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:32,950 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:33,237 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2023-11-29 06:00:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:33,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 06:00:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:33,238 INFO L225 Difference]: With dead ends: 104 [2023-11-29 06:00:33,238 INFO L226 Difference]: Without dead ends: 101 [2023-11-29 06:00:33,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:33,240 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 27 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:33,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:00:33,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-29 06:00:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2023-11-29 06:00:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 62 states have (on average 1.532258064516129) internal successors, (95), 89 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2023-11-29 06:00:33,249 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 10 [2023-11-29 06:00:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:33,249 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2023-11-29 06:00:33,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:00:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2023-11-29 06:00:33,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 06:00:33,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:33,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:33,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:00:33,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:33,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:33,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1574874347, now seen corresponding path program 1 times [2023-11-29 06:00:33,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:33,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675364632] [2023-11-29 06:00:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:33,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:33,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:33,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980246737] [2023-11-29 06:00:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:33,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:33,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:33,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:33,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:00:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:33,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:00:33,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:33,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:33,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675364632] [2023-11-29 06:00:33,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980246737] [2023-11-29 06:00:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980246737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:33,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:33,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 06:00:33,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12695783] [2023-11-29 06:00:33,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:33,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:33,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:33,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:33,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:33,606 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 06:00:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:33,709 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2023-11-29 06:00:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 06:00:33,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:33,710 INFO L225 Difference]: With dead ends: 101 [2023-11-29 06:00:33,710 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 06:00:33,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:33,712 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:33,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 52 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:00:33,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 06:00:33,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-11-29 06:00:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 81 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2023-11-29 06:00:33,718 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 11 [2023-11-29 06:00:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:33,719 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2023-11-29 06:00:33,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 06:00:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2023-11-29 06:00:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 06:00:33,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:33,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:33,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:00:33,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:33,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:33,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash -613245097, now seen corresponding path program 1 times [2023-11-29 06:00:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302403928] [2023-11-29 06:00:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:33,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:33,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:33,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313056161] [2023-11-29 06:00:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:33,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:33,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:33,931 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:33,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:00:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:33,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:00:33,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:34,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:34,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:34,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302403928] [2023-11-29 06:00:34,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:34,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313056161] [2023-11-29 06:00:34,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313056161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:34,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:34,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:00:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31316385] [2023-11-29 06:00:34,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:34,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:34,017 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:00:34,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:34,027 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2023-11-29 06:00:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:34,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-29 06:00:34,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:34,029 INFO L225 Difference]: With dead ends: 85 [2023-11-29 06:00:34,029 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 06:00:34,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:34,030 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 44 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:34,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 61 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:00:34,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 06:00:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 06:00:34,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 80 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 86 transitions. [2023-11-29 06:00:34,037 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 86 transitions. Word has length 19 [2023-11-29 06:00:34,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:34,039 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 86 transitions. [2023-11-29 06:00:34,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:00:34,039 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2023-11-29 06:00:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 06:00:34,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:34,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:34,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:00:34,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:34,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:34,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1830728752, now seen corresponding path program 1 times [2023-11-29 06:00:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:34,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414986796] [2023-11-29 06:00:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:34,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12826096] [2023-11-29 06:00:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:34,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:34,249 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:34,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:00:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:34,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:00:34,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:00:34,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:00:34,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414986796] [2023-11-29 06:00:34,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12826096] [2023-11-29 06:00:34,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12826096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:00:34,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:00:34,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:00:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482964151] [2023-11-29 06:00:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:00:34,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:00:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:00:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:34,317 INFO L87 Difference]: Start difference. First operand 84 states and 86 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:00:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:34,329 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2023-11-29 06:00:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:00:34,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-29 06:00:34,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:34,331 INFO L225 Difference]: With dead ends: 85 [2023-11-29 06:00:34,331 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 06:00:34,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:00:34,332 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:34,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:00:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 06:00:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 06:00:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 54 states have (on average 1.5) internal successors, (81), 80 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2023-11-29 06:00:34,338 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 20 [2023-11-29 06:00:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:34,339 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2023-11-29 06:00:34,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:00:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2023-11-29 06:00:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 06:00:34,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:34,340 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:34,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:00:34,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:34,545 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:34,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1284381400, now seen corresponding path program 1 times [2023-11-29 06:00:34,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:34,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942177403] [2023-11-29 06:00:34,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:34,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:34,555 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:34,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132610065] [2023-11-29 06:00:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:34,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:34,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:34,556 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:34,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:00:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:34,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:00:34,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:34,809 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 06:00:34,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:00:34,984 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 06:00:34,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:34,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942177403] [2023-11-29 06:00:34,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:34,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132610065] [2023-11-29 06:00:34,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132610065] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:00:34,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:00:34,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:00:34,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197602106] [2023-11-29 06:00:34,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:00:34,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:00:34,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:34,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:00:34,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:00:34,987 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:36,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:00:40,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:00:45,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:00:46,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:46,869 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2023-11-29 06:00:46,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:00:46,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-29 06:00:46,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:46,871 INFO L225 Difference]: With dead ends: 137 [2023-11-29 06:00:46,871 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 06:00:46,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:00:46,872 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 158 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:46,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 47 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 187 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2023-11-29 06:00:46,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 06:00:46,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2023-11-29 06:00:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 79 states have (on average 1.4683544303797469) internal successors, (116), 100 states have internal predecessors, (116), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:00:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2023-11-29 06:00:46,881 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 28 [2023-11-29 06:00:46,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:46,881 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2023-11-29 06:00:46,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2023-11-29 06:00:46,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 06:00:46,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:46,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:00:46,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:00:47,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:47,084 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:00:47,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:47,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1161117781, now seen corresponding path program 1 times [2023-11-29 06:00:47,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:00:47,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733171490] [2023-11-29 06:00:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:47,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:00:47,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:00:47,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045400489] [2023-11-29 06:00:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:47,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:00:47,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:00:47,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:00:47,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:00:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:47,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:00:47,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:47,314 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 06:00:47,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:00:47,389 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 06:00:47,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:00:47,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733171490] [2023-11-29 06:00:47,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:00:47,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045400489] [2023-11-29 06:00:47,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045400489] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:00:47,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:00:47,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:00:47,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893779827] [2023-11-29 06:00:47,390 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:00:47,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:00:47,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:00:47,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:00:47,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:00:47,392 INFO L87 Difference]: Start difference. First operand 105 states and 122 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:00:51,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:00:55,592 WARN L539 Checker$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 06:00:59,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:01:03,833 WARN L539 Checker$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 06:01:07,914 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 06:01:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:08,777 INFO L93 Difference]: Finished difference Result 149 states and 169 transitions. [2023-11-29 06:01:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:08,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-29 06:01:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:08,778 INFO L225 Difference]: With dead ends: 149 [2023-11-29 06:01:08,779 INFO L226 Difference]: Without dead ends: 141 [2023-11-29 06:01:08,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 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 06:01:08,780 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 108 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 14 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:08,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 55 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 192 Invalid, 5 Unknown, 0 Unchecked, 21.4s Time] [2023-11-29 06:01:08,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-29 06:01:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 128. [2023-11-29 06:01:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 122 states have internal predecessors, (142), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 06:01:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2023-11-29 06:01:08,789 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 29 [2023-11-29 06:01:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:08,789 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2023-11-29 06:01:08,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:01:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2023-11-29 06:01:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:01:08,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:08,791 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:08,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:08,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:01:08,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:01:08,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:08,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2110523838, now seen corresponding path program 1 times [2023-11-29 06:01:08,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:08,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687870156] [2023-11-29 06:01:08,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:08,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:09,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364435242] [2023-11-29 06:01:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:09,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:09,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:09,002 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:09,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:01:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:09,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:09,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:09,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:09,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:09,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687870156] [2023-11-29 06:01:09,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:09,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364435242] [2023-11-29 06:01:09,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364435242] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:09,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:09,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:01:09,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804092637] [2023-11-29 06:01:09,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:09,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:09,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:09,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:09,338 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:01:12,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:12,211 INFO L93 Difference]: Finished difference Result 203 states and 225 transitions. [2023-11-29 06:01:12,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:01:12,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2023-11-29 06:01:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:12,213 INFO L225 Difference]: With dead ends: 203 [2023-11-29 06:01:12,213 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 06:01:12,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:12,214 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 170 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:12,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 48 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 06:01:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 06:01:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 157. [2023-11-29 06:01:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 133 states have (on average 1.3909774436090225) internal successors, (185), 150 states have internal predecessors, (185), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 06:01:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 195 transitions. [2023-11-29 06:01:12,223 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 195 transitions. Word has length 34 [2023-11-29 06:01:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:12,223 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 195 transitions. [2023-11-29 06:01:12,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:01:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 195 transitions. [2023-11-29 06:01:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 06:01:12,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:12,225 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:12,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:01:12,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:01:12,431 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:01:12,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:12,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1001729595, now seen corresponding path program 1 times [2023-11-29 06:01:12,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:12,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320989794] [2023-11-29 06:01:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:12,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:12,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:12,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189470365] [2023-11-29 06:01:12,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:12,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:12,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:12,440 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:12,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:01:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:12,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:01:12,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:15,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:15,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:17,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320989794] [2023-11-29 06:01:17,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189470365] [2023-11-29 06:01:17,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189470365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:17,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:17,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 06:01:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876104773] [2023-11-29 06:01:17,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:17,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:01:17,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:17,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:01:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:01:17,299 INFO L87 Difference]: Start difference. First operand 157 states and 195 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:01:21,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:30,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:31,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:35,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:37,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:39,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:46,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:50,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:53,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:58,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:01:59,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:02:00,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:02:05,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:02:10,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:02:11,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:11,868 INFO L93 Difference]: Finished difference Result 167 states and 201 transitions. [2023-11-29 06:02:11,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:02:11,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-29 06:02:11,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:11,870 INFO L225 Difference]: With dead ends: 167 [2023-11-29 06:02:11,870 INFO L226 Difference]: Without dead ends: 164 [2023-11-29 06:02:11,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:02:11,871 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 111 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 20 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:11,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 103 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 347 Invalid, 6 Unknown, 0 Unchecked, 51.6s Time] [2023-11-29 06:02:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-29 06:02:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2023-11-29 06:02:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.3458646616541354) internal successors, (179), 148 states have internal predecessors, (179), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 06:02:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2023-11-29 06:02:11,879 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 35 [2023-11-29 06:02:11,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:11,879 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2023-11-29 06:02:11,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:02:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2023-11-29 06:02:11,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:02:11,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:11,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:11,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:12,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:02:12,085 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:02:12,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:12,085 INFO L85 PathProgramCache]: Analyzing trace with hash 988846432, now seen corresponding path program 1 times [2023-11-29 06:02:12,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:12,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290395632] [2023-11-29 06:02:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:12,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:12,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:12,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41942204] [2023-11-29 06:02:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:12,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:12,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:12,092 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:12,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:02:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:12,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:02:12,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:12,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:02:12,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:02:13,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:13,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290395632] [2023-11-29 06:02:13,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:13,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41942204] [2023-11-29 06:02:13,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41942204] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:13,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:13,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2023-11-29 06:02:13,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078194374] [2023-11-29 06:02:13,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:13,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:02:13,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:02:13,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:02:13,602 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:02:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:18,699 INFO L93 Difference]: Finished difference Result 155 states and 189 transitions. [2023-11-29 06:02:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:02:18,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-29 06:02:18,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:18,700 INFO L225 Difference]: With dead ends: 155 [2023-11-29 06:02:18,700 INFO L226 Difference]: Without dead ends: 153 [2023-11-29 06:02:18,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:02:18,702 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 128 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:18,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 41 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:02:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-29 06:02:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-29 06:02:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 133 states have (on average 1.3082706766917294) internal successors, (174), 146 states have internal predecessors, (174), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 06:02:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2023-11-29 06:02:18,719 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 36 [2023-11-29 06:02:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:18,719 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2023-11-29 06:02:18,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:02:18,719 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2023-11-29 06:02:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 06:02:18,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:18,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:18,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:02:18,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:02:18,921 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:02:18,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash 589468381, now seen corresponding path program 1 times [2023-11-29 06:02:18,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:18,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484824609] [2023-11-29 06:02:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:18,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:18,927 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826893733] [2023-11-29 06:02:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:18,928 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:18,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:02:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:18,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:02:18,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:02:19,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:19,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:19,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484824609] [2023-11-29 06:02:19,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:19,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826893733] [2023-11-29 06:02:19,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826893733] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:19,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:19,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:02:19,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267937257] [2023-11-29 06:02:19,368 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:19,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:02:19,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:02:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:02:19,369 INFO L87 Difference]: Start difference. First operand 153 states and 184 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:02:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:20,145 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions. [2023-11-29 06:02:20,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:02:20,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2023-11-29 06:02:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:20,147 INFO L225 Difference]: With dead ends: 160 [2023-11-29 06:02:20,147 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 06:02:20,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:02:20,148 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 20 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:20,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 83 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:02:20,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 06:02:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2023-11-29 06:02:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 140 states have internal predecessors, (166), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 06:02:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 176 transitions. [2023-11-29 06:02:20,158 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 176 transitions. Word has length 37 [2023-11-29 06:02:20,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:20,158 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 176 transitions. [2023-11-29 06:02:20,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:02:20,158 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 176 transitions. [2023-11-29 06:02:20,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 06:02:20,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:20,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:20,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:20,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:02:20,360 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:02:20,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash 852071163, now seen corresponding path program 1 times [2023-11-29 06:02:20,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:20,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762381749] [2023-11-29 06:02:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:20,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:20,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:20,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662567240] [2023-11-29 06:02:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:20,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:20,368 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:20,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:02:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:20,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:02:20,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:02:20,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:02:20,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:20,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762381749] [2023-11-29 06:02:20,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:20,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662567240] [2023-11-29 06:02:20,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662567240] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:02:20,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:02:20,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:02:20,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268898609] [2023-11-29 06:02:20,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:20,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:02:20,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:20,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:02:20,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:02:20,496 INFO L87 Difference]: Start difference. First operand 147 states and 176 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 06:02:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:20,529 INFO L93 Difference]: Finished difference Result 196 states and 213 transitions. [2023-11-29 06:02:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:02:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2023-11-29 06:02:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:20,531 INFO L225 Difference]: With dead ends: 196 [2023-11-29 06:02:20,531 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 06:02:20,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:02:20,532 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 47 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:20,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 208 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:02:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 06:02:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 154. [2023-11-29 06:02:20,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 133 states have (on average 1.300751879699248) internal successors, (173), 146 states have internal predecessors, (173), 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 06:02:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2023-11-29 06:02:20,546 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 45 [2023-11-29 06:02:20,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:20,547 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2023-11-29 06:02:20,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 06:02:20,547 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2023-11-29 06:02:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:02:20,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:20,548 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 06:02:20,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:02:20,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:02:20,749 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 06:02:20,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:20,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1723729667, now seen corresponding path program 2 times [2023-11-29 06:02:20,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:20,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503804786] [2023-11-29 06:02:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:20,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:20,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:20,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058591626] [2023-11-29 06:02:20,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:02:20,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:20,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:20,758 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:20,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:02:20,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:02:20,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-29 06:02:20,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:02:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:02:20,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:02:20,866 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:02:20,867 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2023-11-29 06:02:20,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-11-29 06:02:20,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-11-29 06:02:20,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-11-29 06:02:20,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-11-29 06:02:20,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-11-29 06:02:20,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-11-29 06:02:20,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-11-29 06:02:20,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-11-29 06:02:20,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-11-29 06:02:20,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2023-11-29 06:02:20,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-11-29 06:02:20,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2023-11-29 06:02:20,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-11-29 06:02:20,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-11-29 06:02:20,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-11-29 06:02:20,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-11-29 06:02:20,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-11-29 06:02:20,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-11-29 06:02:20,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-11-29 06:02:20,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-11-29 06:02:20,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 06:02:21,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:02:21,084 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:21,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:02:21,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:02:21 BoogieIcfgContainer [2023-11-29 06:02:21,117 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:02:21,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:02:21,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:02:21,118 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:02:21,118 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:00:30" (3/4) ... [2023-11-29 06:02:21,119 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 06:02:21,161 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:02:21,162 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:02:21,162 INFO L158 Benchmark]: Toolchain (without parser) took 111168.06ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 102.7MB in the beginning and 105.2MB in the end (delta: -2.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-29 06:02:21,163 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:02:21,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.29ms. Allocated memory is still 134.2MB. Free memory was 102.7MB in the beginning and 92.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:02:21,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.95ms. Allocated memory is still 134.2MB. Free memory was 92.3MB in the beginning and 90.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:02:21,164 INFO L158 Benchmark]: Boogie Preprocessor took 33.54ms. Allocated memory is still 134.2MB. Free memory was 90.7MB in the beginning and 89.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:02:21,164 INFO L158 Benchmark]: RCFGBuilder took 442.06ms. Allocated memory is still 134.2MB. Free memory was 88.8MB in the beginning and 74.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:02:21,165 INFO L158 Benchmark]: TraceAbstraction took 110370.30ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 73.5MB in the beginning and 108.4MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:02:21,165 INFO L158 Benchmark]: Witness Printer took 44.10ms. Allocated memory is still 165.7MB. Free memory was 108.4MB in the beginning and 105.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:02:21,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.29ms. Allocated memory is still 134.2MB. Free memory was 102.7MB in the beginning and 92.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.95ms. Allocated memory is still 134.2MB. Free memory was 92.3MB in the beginning and 90.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.54ms. Allocated memory is still 134.2MB. Free memory was 90.7MB in the beginning and 89.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.06ms. Allocated memory is still 134.2MB. Free memory was 88.8MB in the beginning and 74.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 110370.30ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 73.5MB in the beginning and 108.4MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.10ms. Allocated memory is still 165.7MB. Free memory was 108.4MB in the beginning and 105.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 34]: integer overflow possible integer overflow possible We found a FailurePath: [L24] int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_int() [L27] k = __VERIFIER_nondet_int() [L29] x = 1 [L30] y = 1 [L31] c = 1 VAL [c=1, k=3, x=1, y=1, z=-477218701] [L33] COND TRUE 1 VAL [c=1, k=3, x=1, y=1, z=-477218701] [L34] EXPR x*z VAL [c=1, k=3, x=1, y=1, z=-477218701] [L34] EXPR 1 + x*z VAL [c=1, k=3, x=1, y=1, z=-477218701] [L34] EXPR 1 + x*z - x VAL [c=1, k=3, x=1, y=1, z=-477218701] [L34] EXPR z*y VAL [c=1, k=3, x=1, y=1, z=-477218701] [L34] EXPR 1 + x*z - x - z*y VAL [c=1, k=3, x=1, y=1, z=-477218701] [L34] CALL __VERIFIER_assert(1 + x*z - x - z*y == 0) [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L34] RET __VERIFIER_assert(1 + x*z - x - z*y == 0) VAL [c=1, k=3, x=1, y=1, z=-477218701] [L36] COND FALSE !(!(c < k)) VAL [c=1, k=3, x=1, y=1, z=-477218701] [L39] EXPR c + 1 [L39] c = c + 1 VAL [c=2, k=3, x=1, y=1, z=-477218701] [L40] EXPR x * z VAL [c=2, k=3, x=1, y=1, z=-477218701] [L40] EXPR x * z + 1 [L40] x = x * z + 1 VAL [c=2, k=3, x=-477218700, y=1, z=-477218701] [L41] EXPR y * z [L41] y = y * z VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L33] COND TRUE 1 VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L34] EXPR x*z VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L34] EXPR 1 + x*z VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L34] EXPR 1 + x*z - x VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L34] EXPR z*y VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L34] EXPR 1 + x*z - x - z*y VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L34] CALL __VERIFIER_assert(1 + x*z - x - z*y == 0) [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L34] RET __VERIFIER_assert(1 + x*z - x - z*y == 0) VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L36] COND FALSE !(!(c < k)) VAL [c=2, k=3, x=-477218700, y=-477218701, z=-477218701] [L39] EXPR c + 1 [L39] c = c + 1 VAL [c=3, k=3, x=-477218700, y=-477218701, z=-477218701] [L40] EXPR x * z VAL [c=3, k=3, x=-477218700, y=-477218701, z=-477218701] [L40] EXPR x * z + 1 [L40] x = x * z + 1 VAL [c=3, k=3, x=227737688106908701, y=-477218701, z=-477218701] [L41] EXPR y * z [L41] y = y * z VAL [c=3, k=3, x=227737688106908701, y=227737688584127401, z=-477218701] [L33] COND TRUE 1 VAL [c=3, k=3, x=227737688106908701, y=227737688584127401, z=-477218701] [L34] x*z VAL [c=3, k=3, x=227737688106908701, y=227737688584127401, z=-477218701] - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 67 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 110.3s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 97.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 957 SdHoareTripleChecker+Valid, 91.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 943 mSDsluCounter, 1049 SdHoareTripleChecker+Invalid, 91.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 532 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1737 IncrementalHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 517 mSDtfsCounter, 1737 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 545 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=11, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 192 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 509 ConstructedInterpolants, 51 QuantifiedInterpolants, 4381 SizeOfPredicates, 4 NumberOfNonLiveVariables, 855 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 21 InterpolantComputations, 9 PerfectInterpolantSequences, 18/113 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 06:02:21,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc50853-2292-46c9-ab52-21a06f5e483a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)