./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/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_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/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_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/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 c54d9189042c7bc9bae976b882c7c0538c4797366038f58e7e5d207abe4f931e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:47:02,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:47:02,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:47:02,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:47:02,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:47:02,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:47:02,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:47:02,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:47:02,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:47:02,775 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:47:02,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:47:02,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:47:02,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:47:02,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:47:02,778 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:47:02,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:47:02,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:47:02,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:47:02,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:47:02,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:47:02,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:47:02,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:47:02,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:47:02,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:47:02,798 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:47:02,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:47:02,799 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:47:02,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:47:02,800 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:47:02,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:47:02,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:47:02,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:47:02,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:47:02,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:47:02,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:47:02,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:47:02,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:47:02,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:47:02,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:47:02,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:47:02,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:47:02,804 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:47:02,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:47:02,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:47:02,804 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_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c54d9189042c7bc9bae976b882c7c0538c4797366038f58e7e5d207abe4f931e [2023-11-29 03:47:03,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:47:03,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:47:03,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:47:03,087 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:47:03,088 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:47:03,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound50.c [2023-11-29 03:47:05,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:47:05,956 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:47:05,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound50.c [2023-11-29 03:47:05,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/data/955b14fb0/56a0c98faab34aa9b1e0c9d9f81f9ebc/FLAG299e2517f [2023-11-29 03:47:05,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/data/955b14fb0/56a0c98faab34aa9b1e0c9d9f81f9ebc [2023-11-29 03:47:05,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:47:05,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:47:05,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:47:05,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:47:05,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:47:05,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:47:05" (1/1) ... [2023-11-29 03:47:05,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ac5710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:05, skipping insertion in model container [2023-11-29 03:47:05,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:47:05" (1/1) ... [2023-11-29 03:47:06,007 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:47:06,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:47:06,148 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:47:06,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:47:06,177 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:47:06,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06 WrapperNode [2023-11-29 03:47:06,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:47:06,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:47:06,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:47:06,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:47:06,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,210 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-29 03:47:06,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:47:06,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:47:06,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:47:06,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:47:06,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,222 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,232 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 03:47:06,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:47:06,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:47:06,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:47:06,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:47:06,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (1/1) ... [2023-11-29 03:47:06,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:47:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:06,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:47:06,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:47:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:47:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:47:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:47:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:47:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:47:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:47:06,360 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:47:06,361 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:47:06,544 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:47:06,569 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:47:06,570 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:47:06,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:47:06 BoogieIcfgContainer [2023-11-29 03:47:06,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:47:06,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:47:06,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:47:06,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:47:06,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:47:05" (1/3) ... [2023-11-29 03:47:06,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1638027c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:47:06, skipping insertion in model container [2023-11-29 03:47:06,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:47:06" (2/3) ... [2023-11-29 03:47:06,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1638027c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:47:06, skipping insertion in model container [2023-11-29 03:47:06,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:47:06" (3/3) ... [2023-11-29 03:47:06,579 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_unwindbound50.c [2023-11-29 03:47:06,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:47:06,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-29 03:47:06,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:47:06,640 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;@114b9187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:47:06,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-29 03:47:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 47 states have internal predecessors, (53), 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 03:47:06,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:47:06,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:06,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:47:06,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:06,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash 114676290, now seen corresponding path program 1 times [2023-11-29 03:47:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:06,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347617637] [2023-11-29 03:47:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:06,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:06,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:06,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347617637] [2023-11-29 03:47:06,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:47:06,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199051145] [2023-11-29 03:47:06,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:06,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:06,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:06,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:06,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:47:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:06,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:47:06,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:06,837 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 03:47:06,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199051145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:47:06,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267923026] [2023-11-29 03:47:06,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:06,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:47:06,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:06,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:47:06,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:47:06,875 INFO L87 Difference]: Start difference. First operand has 51 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 47 states have internal predecessors, (53), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:06,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:06,905 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2023-11-29 03:47:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:47:06,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:47:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:06,916 INFO L225 Difference]: With dead ends: 100 [2023-11-29 03:47:06,916 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 03:47:06,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 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 03:47:06,923 INFO L413 NwaCegarLoop]: 52 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, 52 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 03:47:06,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 03:47:06,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 03:47:06,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 45 states have internal predecessors, (48), 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 03:47:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2023-11-29 03:47:06,963 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 5 [2023-11-29 03:47:06,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:06,963 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2023-11-29 03:47:06,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:06,964 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2023-11-29 03:47:06,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 03:47:06,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:06,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 03:47:06,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:07,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:47:07,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:07,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash 114734239, now seen corresponding path program 1 times [2023-11-29 03:47:07,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:07,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982220838] [2023-11-29 03:47:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:07,267 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 03:47:07,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:07,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982220838] [2023-11-29 03:47:07,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982220838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:07,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:07,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:47:07,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169141635] [2023-11-29 03:47:07,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:07,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:07,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:07,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:07,271 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:07,317 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2023-11-29 03:47:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:47:07,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 03:47:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:07,319 INFO L225 Difference]: With dead ends: 58 [2023-11-29 03:47:07,319 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 03:47:07,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:07,321 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:07,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 131 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 03:47:07,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-29 03:47:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 32 states have (on average 1.625) internal successors, (52), 49 states have internal predecessors, (52), 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 03:47:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2023-11-29 03:47:07,331 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 5 [2023-11-29 03:47:07,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:07,331 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2023-11-29 03:47:07,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:47:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2023-11-29 03:47:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 03:47:07,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:07,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:07,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:47:07,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:07,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:07,333 INFO L85 PathProgramCache]: Analyzing trace with hash -746205741, now seen corresponding path program 1 times [2023-11-29 03:47:07,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:07,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067400685] [2023-11-29 03:47:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:07,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:07,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:07,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490905147] [2023-11-29 03:47:07,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:07,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:07,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:07,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:07,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:47:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:07,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:47:07,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:07,570 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 03:47:07,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:07,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:07,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067400685] [2023-11-29 03:47:07,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:07,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490905147] [2023-11-29 03:47:07,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490905147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:07,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:07,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491053248] [2023-11-29 03:47:07,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:07,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:47:07,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:07,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:47:07,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:07,576 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 03:47:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:07,739 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2023-11-29 03:47:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:47:07,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2023-11-29 03:47:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:07,741 INFO L225 Difference]: With dead ends: 81 [2023-11-29 03:47:07,741 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 03:47:07,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:47:07,743 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 88 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:07,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 57 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:07,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 03:47:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2023-11-29 03:47:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 60 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:47:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2023-11-29 03:47:07,753 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 8 [2023-11-29 03:47:07,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:07,754 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2023-11-29 03:47:07,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 03:47:07,754 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2023-11-29 03:47:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 03:47:07,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:07,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:07,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:07,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:07,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:07,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:07,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1657541434, now seen corresponding path program 1 times [2023-11-29 03:47:07,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:07,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458631664] [2023-11-29 03:47:07,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:07,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:07,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:07,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950191430] [2023-11-29 03:47:07,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:07,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:07,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:07,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:07,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:47:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:08,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:47:08,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:08,153 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 03:47:08,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:08,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:08,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458631664] [2023-11-29 03:47:08,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:08,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950191430] [2023-11-29 03:47:08,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950191430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:08,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:08,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:08,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326646855] [2023-11-29 03:47:08,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:08,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:47:08,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:08,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:47:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:08,156 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 03:47:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:08,297 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2023-11-29 03:47:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:47:08,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 03:47:08,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:08,301 INFO L225 Difference]: With dead ends: 71 [2023-11-29 03:47:08,301 INFO L226 Difference]: Without dead ends: 65 [2023-11-29 03:47:08,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:47:08,302 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 79 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:08,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 61 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-29 03:47:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2023-11-29 03:47:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 57 states have internal predecessors, (64), 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 03:47:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2023-11-29 03:47:08,311 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 9 [2023-11-29 03:47:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:08,311 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2023-11-29 03:47:08,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 03:47:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2023-11-29 03:47:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:47:08,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:08,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:08,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:08,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:08,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:08,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash 155823157, now seen corresponding path program 1 times [2023-11-29 03:47:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:08,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149516970] [2023-11-29 03:47:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:08,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:08,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241942013] [2023-11-29 03:47:08,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:08,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:08,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:08,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:08,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:47:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:08,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:08,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:08,591 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 03:47:08,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:08,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:08,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149516970] [2023-11-29 03:47:08,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:08,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241942013] [2023-11-29 03:47:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241942013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:08,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:08,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:08,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373273013] [2023-11-29 03:47:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:08,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:08,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:08,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:08,594 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 03:47:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:08,671 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2023-11-29 03:47:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 03:47:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:08,673 INFO L225 Difference]: With dead ends: 92 [2023-11-29 03:47:08,673 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 03:47:08,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:08,675 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:08,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 75 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:08,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 03:47:08,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2023-11-29 03:47:08,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 73 states have internal predecessors, (89), 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 03:47:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 95 transitions. [2023-11-29 03:47:08,685 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 95 transitions. Word has length 10 [2023-11-29 03:47:08,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:08,686 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 95 transitions. [2023-11-29 03:47:08,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 03:47:08,686 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 95 transitions. [2023-11-29 03:47:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 03:47:08,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:08,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:08,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:47:08,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:08,889 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:08,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:08,889 INFO L85 PathProgramCache]: Analyzing trace with hash 535550632, now seen corresponding path program 1 times [2023-11-29 03:47:08,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:08,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590104856] [2023-11-29 03:47:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:08,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:08,896 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:08,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919920468] [2023-11-29 03:47:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:08,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:08,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:08,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:08,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:47:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:08,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:08,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:08,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:08,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:08,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590104856] [2023-11-29 03:47:08,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:08,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919920468] [2023-11-29 03:47:08,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919920468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:08,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:08,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:08,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596337736] [2023-11-29 03:47:08,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:08,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:08,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:08,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:08,962 INFO L87 Difference]: Start difference. First operand 78 states and 95 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 03:47:09,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:09,033 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2023-11-29 03:47:09,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:09,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 03:47:09,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:09,035 INFO L225 Difference]: With dead ends: 91 [2023-11-29 03:47:09,035 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 03:47:09,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:09,036 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:09,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 78 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:09,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 03:47:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2023-11-29 03:47:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.45) internal successors, (87), 73 states have internal predecessors, (87), 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 03:47:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 93 transitions. [2023-11-29 03:47:09,047 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 93 transitions. Word has length 11 [2023-11-29 03:47:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:09,047 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 93 transitions. [2023-11-29 03:47:09,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 03:47:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2023-11-29 03:47:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:47:09,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:09,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:09,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:47:09,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:09,252 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:09,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1139810194, now seen corresponding path program 1 times [2023-11-29 03:47:09,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:09,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243548887] [2023-11-29 03:47:09,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:09,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:09,262 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:09,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490955449] [2023-11-29 03:47:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:09,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:09,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:09,264 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:09,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:47:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:09,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:09,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:09,381 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 03:47:09,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243548887] [2023-11-29 03:47:09,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490955449] [2023-11-29 03:47:09,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490955449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:09,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:09,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:09,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487191229] [2023-11-29 03:47:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:09,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:09,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:09,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:09,385 INFO L87 Difference]: Start difference. First operand 78 states and 93 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:09,434 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2023-11-29 03:47:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:09,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-29 03:47:09,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:09,435 INFO L225 Difference]: With dead ends: 80 [2023-11-29 03:47:09,436 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 03:47:09,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:09,437 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 58 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:09,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 57 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:09,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 03:47:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-11-29 03:47:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 73 states have internal predecessors, (86), 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 03:47:09,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2023-11-29 03:47:09,446 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 21 [2023-11-29 03:47:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:09,448 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2023-11-29 03:47:09,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2023-11-29 03:47:09,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 03:47:09,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:09,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:09,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:47:09,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:09,654 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:09,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash 974377724, now seen corresponding path program 1 times [2023-11-29 03:47:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:09,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393902734] [2023-11-29 03:47:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:09,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:09,664 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:09,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042739453] [2023-11-29 03:47:09,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:09,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:09,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:09,665 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:09,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:47:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:09,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:09,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:09,773 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 03:47:09,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:09,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:09,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393902734] [2023-11-29 03:47:09,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:09,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042739453] [2023-11-29 03:47:09,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042739453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:09,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:09,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:09,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623375685] [2023-11-29 03:47:09,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:09,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:09,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:09,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:09,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:09,776 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:09,824 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2023-11-29 03:47:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:09,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-29 03:47:09,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:09,826 INFO L225 Difference]: With dead ends: 79 [2023-11-29 03:47:09,826 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 03:47:09,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:09,827 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 55 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:09,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 58 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 03:47:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 03:47:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 73 states have internal predecessors, (85), 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 03:47:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2023-11-29 03:47:09,836 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 22 [2023-11-29 03:47:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2023-11-29 03:47:09,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2023-11-29 03:47:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 03:47:09,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:09,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:09,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:47:10,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 03:47:10,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:10,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:10,041 INFO L85 PathProgramCache]: Analyzing trace with hash 141247285, now seen corresponding path program 1 times [2023-11-29 03:47:10,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:10,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587467284] [2023-11-29 03:47:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:10,052 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:10,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412836677] [2023-11-29 03:47:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:10,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:10,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:10,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:10,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:47:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:10,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:10,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:10,156 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 03:47:10,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:10,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:10,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587467284] [2023-11-29 03:47:10,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412836677] [2023-11-29 03:47:10,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412836677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:10,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:10,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942104875] [2023-11-29 03:47:10,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:10,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:10,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:10,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:10,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:10,159 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:10,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:10,216 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2023-11-29 03:47:10,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:10,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-29 03:47:10,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:10,218 INFO L225 Difference]: With dead ends: 85 [2023-11-29 03:47:10,218 INFO L226 Difference]: Without dead ends: 83 [2023-11-29 03:47:10,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:10,219 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 72 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:10,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 45 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-29 03:47:10,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2023-11-29 03:47:10,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 72 states have internal predecessors, (83), 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 03:47:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2023-11-29 03:47:10,227 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 23 [2023-11-29 03:47:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:10,227 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2023-11-29 03:47:10,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:10,228 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2023-11-29 03:47:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:47:10,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:10,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:10,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:47:10,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 03:47:10,429 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:10,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 83698632, now seen corresponding path program 1 times [2023-11-29 03:47:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:10,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51458374] [2023-11-29 03:47:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:10,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:10,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:10,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300590549] [2023-11-29 03:47:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:10,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:10,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:10,440 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:10,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:47:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:10,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:10,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:10,506 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 03:47:10,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:10,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:10,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51458374] [2023-11-29 03:47:10,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:10,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300590549] [2023-11-29 03:47:10,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300590549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:10,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:10,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010602801] [2023-11-29 03:47:10,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:10,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:10,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:10,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:10,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:10,508 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:10,541 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2023-11-29 03:47:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-29 03:47:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:10,543 INFO L225 Difference]: With dead ends: 77 [2023-11-29 03:47:10,543 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 03:47:10,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:10,544 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 48 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:10,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 29 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 03:47:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2023-11-29 03:47:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 68 states have internal predecessors, (78), 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 03:47:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2023-11-29 03:47:10,551 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 24 [2023-11-29 03:47:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:10,551 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2023-11-29 03:47:10,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2023-11-29 03:47:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 03:47:10,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:10,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:10,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:47:10,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:47:10,754 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:10,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:10,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1997098471, now seen corresponding path program 1 times [2023-11-29 03:47:10,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:10,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924437834] [2023-11-29 03:47:10,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:10,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:10,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:10,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650415968] [2023-11-29 03:47:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:10,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:10,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:10,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:10,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:47:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:10,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:10,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:10,842 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 03:47:10,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:10,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:10,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924437834] [2023-11-29 03:47:10,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:10,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650415968] [2023-11-29 03:47:10,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650415968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:10,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:10,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:10,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965921455] [2023-11-29 03:47:10,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:10,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:10,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:10,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:10,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:10,844 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:10,889 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2023-11-29 03:47:10,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:10,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-29 03:47:10,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:10,891 INFO L225 Difference]: With dead ends: 78 [2023-11-29 03:47:10,891 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 03:47:10,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:10,892 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 56 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:10,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 51 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:10,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 03:47:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2023-11-29 03:47:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 71 states have internal predecessors, (81), 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 03:47:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2023-11-29 03:47:10,899 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 25 [2023-11-29 03:47:10,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:10,899 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2023-11-29 03:47:10,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:47:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2023-11-29 03:47:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:47:10,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:10,900 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] [2023-11-29 03:47:10,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:47:11,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:47:11,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:11,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:11,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1169991862, now seen corresponding path program 1 times [2023-11-29 03:47:11,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:11,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078500585] [2023-11-29 03:47:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:11,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:11,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:11,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14860092] [2023-11-29 03:47:11,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:11,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:11,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:11,110 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:11,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:47:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:11,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:47:11,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:11,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:11,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:11,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078500585] [2023-11-29 03:47:11,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:11,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14860092] [2023-11-29 03:47:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14860092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:11,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:11,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:47:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532731388] [2023-11-29 03:47:11,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:11,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:47:11,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:47:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:47:11,199 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 03:47:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:11,231 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2023-11-29 03:47:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:47:11,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 26 [2023-11-29 03:47:11,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:11,232 INFO L225 Difference]: With dead ends: 76 [2023-11-29 03:47:11,232 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 03:47:11,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:47:11,233 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 24 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:11,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:11,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 03:47:11,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-29 03:47:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 70 states have internal predecessors, (79), 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 03:47:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2023-11-29 03:47:11,239 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 26 [2023-11-29 03:47:11,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:11,239 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2023-11-29 03:47:11,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 03:47:11,240 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2023-11-29 03:47:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:47:11,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:11,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:11,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:11,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:47:11,444 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:11,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1780510368, now seen corresponding path program 1 times [2023-11-29 03:47:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:11,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261082762] [2023-11-29 03:47:11,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:11,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:11,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:11,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722893505] [2023-11-29 03:47:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:11,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:11,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:11,455 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:11,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:47:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:11,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:47:11,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:11,531 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 03:47:11,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:11,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:11,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261082762] [2023-11-29 03:47:11,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:11,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722893505] [2023-11-29 03:47:11,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722893505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:11,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:11,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:11,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747872709] [2023-11-29 03:47:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:11,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:11,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:11,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:11,534 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 03:47:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:11,577 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2023-11-29 03:47:11,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:11,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 26 [2023-11-29 03:47:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:11,579 INFO L225 Difference]: With dead ends: 77 [2023-11-29 03:47:11,579 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 03:47:11,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:11,580 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 52 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:11,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 50 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:11,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 03:47:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-29 03:47:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 71 states have internal predecessors, (80), 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 03:47:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2023-11-29 03:47:11,586 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 26 [2023-11-29 03:47:11,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:11,586 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2023-11-29 03:47:11,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 03:47:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2023-11-29 03:47:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:47:11,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:11,588 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] [2023-11-29 03:47:11,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:47:11,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:47:11,793 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:11,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:11,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1910009306, now seen corresponding path program 1 times [2023-11-29 03:47:11,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:11,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539938517] [2023-11-29 03:47:11,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:11,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:11,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:11,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054005101] [2023-11-29 03:47:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:11,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:11,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:11,800 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:11,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:47:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:11,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:47:11,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:11,889 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 03:47:11,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:11,968 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 03:47:11,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:11,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539938517] [2023-11-29 03:47:11,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:11,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054005101] [2023-11-29 03:47:11,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054005101] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:11,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:11,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 03:47:11,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766472330] [2023-11-29 03:47:11,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:11,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:47:11,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:11,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:47:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:47:11,971 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:47:12,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:12,083 INFO L93 Difference]: Finished difference Result 194 states and 222 transitions. [2023-11-29 03:47:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:47:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-29 03:47:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:12,085 INFO L225 Difference]: With dead ends: 194 [2023-11-29 03:47:12,085 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:47:12,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:47:12,086 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 91 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:12,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 213 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:12,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:47:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 174. [2023-11-29 03:47:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 153 states have (on average 1.3202614379084967) internal successors, (202), 162 states have internal predecessors, (202), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2023-11-29 03:47:12,103 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 27 [2023-11-29 03:47:12,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:12,104 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2023-11-29 03:47:12,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:47:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2023-11-29 03:47:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:47:12,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:12,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:12,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:47:12,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:47:12,307 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:12,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash 638753531, now seen corresponding path program 1 times [2023-11-29 03:47:12,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:12,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912309297] [2023-11-29 03:47:12,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:12,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:12,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:12,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201585165] [2023-11-29 03:47:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:12,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:12,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:12,316 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:12,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:47:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:12,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:12,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:12,418 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 03:47:12,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:12,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:12,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912309297] [2023-11-29 03:47:12,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:12,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201585165] [2023-11-29 03:47:12,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201585165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:12,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:12,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:47:12,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822489240] [2023-11-29 03:47:12,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:12,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:47:12,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:12,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:47:12,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:12,421 INFO L87 Difference]: Start difference. First operand 174 states and 216 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 03:47:12,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:12,502 INFO L93 Difference]: Finished difference Result 193 states and 237 transitions. [2023-11-29 03:47:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:47:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 27 [2023-11-29 03:47:12,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:12,504 INFO L225 Difference]: With dead ends: 193 [2023-11-29 03:47:12,504 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:47:12,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:47:12,505 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 28 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:12,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 122 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:12,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:47:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 173. [2023-11-29 03:47:12,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.2941176470588236) internal successors, (198), 161 states have internal predecessors, (198), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:12,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 212 transitions. [2023-11-29 03:47:12,522 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 212 transitions. Word has length 27 [2023-11-29 03:47:12,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:12,523 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 212 transitions. [2023-11-29 03:47:12,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 03:47:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 212 transitions. [2023-11-29 03:47:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:47:12,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:12,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:12,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:47:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:47:12,729 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:12,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1567905976, now seen corresponding path program 1 times [2023-11-29 03:47:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44509252] [2023-11-29 03:47:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:12,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:12,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589100509] [2023-11-29 03:47:12,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:12,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:12,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:12,738 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:12,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:47:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:12,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:47:12,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:13,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:14,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44509252] [2023-11-29 03:47:14,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589100509] [2023-11-29 03:47:14,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589100509] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:14,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:47:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71167080] [2023-11-29 03:47:14,184 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:14,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:47:14,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:14,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:47:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:47:14,185 INFO L87 Difference]: Start difference. First operand 173 states and 212 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 03:47:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:14,687 INFO L93 Difference]: Finished difference Result 183 states and 218 transitions. [2023-11-29 03:47:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:47:14,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 29 [2023-11-29 03:47:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:14,689 INFO L225 Difference]: With dead ends: 183 [2023-11-29 03:47:14,689 INFO L226 Difference]: Without dead ends: 181 [2023-11-29 03:47:14,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:47:14,691 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 96 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:14,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 81 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-29 03:47:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 173. [2023-11-29 03:47:14,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.2810457516339868) internal successors, (196), 161 states have internal predecessors, (196), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 210 transitions. [2023-11-29 03:47:14,705 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 210 transitions. Word has length 29 [2023-11-29 03:47:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:14,705 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 210 transitions. [2023-11-29 03:47:14,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 03:47:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 210 transitions. [2023-11-29 03:47:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:47:14,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:14,706 INFO L195 NwaCegarLoop]: trace histogram [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 03:47:14,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:14,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:47:14,909 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:14,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:14,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1360444943, now seen corresponding path program 1 times [2023-11-29 03:47:14,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:14,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418643797] [2023-11-29 03:47:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:14,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:14,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449266426] [2023-11-29 03:47:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:14,918 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:14,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:47:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:14,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:47:14,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:15,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:16,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:16,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418643797] [2023-11-29 03:47:16,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:16,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449266426] [2023-11-29 03:47:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449266426] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:16,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:47:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117774211] [2023-11-29 03:47:16,574 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:16,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:47:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:47:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:47:16,576 INFO L87 Difference]: Start difference. First operand 173 states and 210 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 03:47:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:17,034 INFO L93 Difference]: Finished difference Result 181 states and 216 transitions. [2023-11-29 03:47:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:47:17,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 30 [2023-11-29 03:47:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:17,037 INFO L225 Difference]: With dead ends: 181 [2023-11-29 03:47:17,037 INFO L226 Difference]: Without dead ends: 179 [2023-11-29 03:47:17,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:47:17,038 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 91 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:17,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 85 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-29 03:47:17,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 173. [2023-11-29 03:47:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.2679738562091503) internal successors, (194), 161 states have internal predecessors, (194), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:17,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 208 transitions. [2023-11-29 03:47:17,047 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 208 transitions. Word has length 30 [2023-11-29 03:47:17,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:17,047 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 208 transitions. [2023-11-29 03:47:17,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 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 03:47:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 208 transitions. [2023-11-29 03:47:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 03:47:17,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:17,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:17,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:47:17,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:47:17,253 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:17,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:17,253 INFO L85 PathProgramCache]: Analyzing trace with hash -819490162, now seen corresponding path program 1 times [2023-11-29 03:47:17,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:17,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776008814] [2023-11-29 03:47:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:17,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:17,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:17,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781358528] [2023-11-29 03:47:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:17,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:17,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:17,262 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:17,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:47:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:17,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:47:17,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:17,506 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:17,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:19,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776008814] [2023-11-29 03:47:19,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:19,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781358528] [2023-11-29 03:47:19,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781358528] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:19,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:19,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:47:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128840185] [2023-11-29 03:47:19,385 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:19,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:47:19,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:19,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:47:19,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:47:19,386 INFO L87 Difference]: Start difference. First operand 173 states and 208 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 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 03:47:19,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:19,814 INFO L93 Difference]: Finished difference Result 187 states and 218 transitions. [2023-11-29 03:47:19,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:47:19,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 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 33 [2023-11-29 03:47:19,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:19,816 INFO L225 Difference]: With dead ends: 187 [2023-11-29 03:47:19,816 INFO L226 Difference]: Without dead ends: 185 [2023-11-29 03:47:19,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:47:19,817 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 79 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:19,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 83 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-29 03:47:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 174. [2023-11-29 03:47:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 154 states have (on average 1.2597402597402598) internal successors, (194), 162 states have internal predecessors, (194), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:19,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2023-11-29 03:47:19,828 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 33 [2023-11-29 03:47:19,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:19,829 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2023-11-29 03:47:19,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 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 03:47:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2023-11-29 03:47:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 03:47:19,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:19,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:19,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:20,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:47:20,030 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:20,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash 365608811, now seen corresponding path program 1 times [2023-11-29 03:47:20,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:20,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273232158] [2023-11-29 03:47:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:20,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:20,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053713302] [2023-11-29 03:47:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:20,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:20,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:20,039 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:20,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:47:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:20,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:47:20,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:20,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:22,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:22,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273232158] [2023-11-29 03:47:22,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:22,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053713302] [2023-11-29 03:47:22,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053713302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:22,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:22,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:47:22,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226860165] [2023-11-29 03:47:22,532 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:22,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:47:22,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:22,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:47:22,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:47:22,533 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 03:47:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:22,986 INFO L93 Difference]: Finished difference Result 185 states and 216 transitions. [2023-11-29 03:47:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:47:22,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 34 [2023-11-29 03:47:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:22,988 INFO L225 Difference]: With dead ends: 185 [2023-11-29 03:47:22,988 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 03:47:22,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:47:22,989 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 75 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:22,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 80 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 03:47:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 175. [2023-11-29 03:47:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 155 states have (on average 1.2516129032258065) internal successors, (194), 163 states have internal predecessors, (194), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 208 transitions. [2023-11-29 03:47:23,001 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 208 transitions. Word has length 34 [2023-11-29 03:47:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:23,001 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 208 transitions. [2023-11-29 03:47:23,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 03:47:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 208 transitions. [2023-11-29 03:47:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 03:47:23,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:23,002 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:23,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:23,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:23,205 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:23,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1551028688, now seen corresponding path program 1 times [2023-11-29 03:47:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:23,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316988952] [2023-11-29 03:47:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:23,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:23,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:23,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861893438] [2023-11-29 03:47:23,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:23,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:23,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:23,211 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:23,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:47:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:23,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:47:23,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:23,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:23,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:23,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316988952] [2023-11-29 03:47:23,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:23,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861893438] [2023-11-29 03:47:23,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861893438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:23,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:23,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:47:23,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098724077] [2023-11-29 03:47:23,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:23,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:47:23,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:23,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:47:23,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:47:23,683 INFO L87 Difference]: Start difference. First operand 175 states and 208 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 03:47:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:25,494 INFO L93 Difference]: Finished difference Result 194 states and 228 transitions. [2023-11-29 03:47:25,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:47:25,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 35 [2023-11-29 03:47:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:25,496 INFO L225 Difference]: With dead ends: 194 [2023-11-29 03:47:25,496 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:47:25,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:47:25,497 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 25 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:25,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 154 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:47:25,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:47:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 174. [2023-11-29 03:47:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 155 states have (on average 1.232258064516129) internal successors, (191), 162 states have internal predecessors, (191), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2023-11-29 03:47:25,510 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 35 [2023-11-29 03:47:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:25,510 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2023-11-29 03:47:25,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 03:47:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2023-11-29 03:47:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 03:47:25,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:25,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:25,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:47:25,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:25,712 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:25,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:25,712 INFO L85 PathProgramCache]: Analyzing trace with hash -837249011, now seen corresponding path program 1 times [2023-11-29 03:47:25,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:25,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469318668] [2023-11-29 03:47:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:25,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:25,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:25,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829140475] [2023-11-29 03:47:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:25,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:25,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:25,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:47:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:25,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:47:25,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:47:26,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:26,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:26,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469318668] [2023-11-29 03:47:26,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:26,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829140475] [2023-11-29 03:47:26,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829140475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:26,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:26,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:47:26,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219486373] [2023-11-29 03:47:26,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:26,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:47:26,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:26,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:47:26,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:47:26,191 INFO L87 Difference]: Start difference. First operand 174 states and 205 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 03:47:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:31,295 INFO L93 Difference]: Finished difference Result 193 states and 225 transitions. [2023-11-29 03:47:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:47:31,295 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 03:47:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:31,297 INFO L225 Difference]: With dead ends: 193 [2023-11-29 03:47:31,297 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:47:31,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:47:31,298 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:31,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 113 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:47:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:47:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 115. [2023-11-29 03:47:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 100 states have (on average 1.21) internal successors, (121), 106 states have internal predecessors, (121), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:47:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2023-11-29 03:47:31,311 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 36 [2023-11-29 03:47:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:31,311 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2023-11-29 03:47:31,311 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 03:47:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2023-11-29 03:47:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:47:31,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:31,312 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2023-11-29 03:47:31,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:31,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:31,512 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:31,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash -11531203, now seen corresponding path program 1 times [2023-11-29 03:47:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:31,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167900558] [2023-11-29 03:47:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:31,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:31,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856519185] [2023-11-29 03:47:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:31,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:31,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:31,522 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:31,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:47:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:31,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:31,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:31,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:31,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167900558] [2023-11-29 03:47:31,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:31,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856519185] [2023-11-29 03:47:31,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856519185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:31,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:31,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:47:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600598507] [2023-11-29 03:47:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:31,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:47:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:47:31,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:31,639 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 03:47:31,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:31,730 INFO L93 Difference]: Finished difference Result 186 states and 214 transitions. [2023-11-29 03:47:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:47:31,731 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), 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 42 [2023-11-29 03:47:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:31,732 INFO L225 Difference]: With dead ends: 186 [2023-11-29 03:47:31,732 INFO L226 Difference]: Without dead ends: 185 [2023-11-29 03:47:31,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:47:31,733 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 17 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:31,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 88 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:47:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-29 03:47:31,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 176. [2023-11-29 03:47:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 158 states have (on average 1.2088607594936709) internal successors, (191), 164 states have internal predecessors, (191), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:31,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 205 transitions. [2023-11-29 03:47:31,747 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 205 transitions. Word has length 42 [2023-11-29 03:47:31,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:31,747 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 205 transitions. [2023-11-29 03:47:31,747 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), 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 03:47:31,747 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 205 transitions. [2023-11-29 03:47:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 03:47:31,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:31,748 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-11-29 03:47:31,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:47:31,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:31,949 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:31,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -357467215, now seen corresponding path program 1 times [2023-11-29 03:47:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064023234] [2023-11-29 03:47:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:31,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:31,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:31,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2119761844] [2023-11-29 03:47:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:31,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:31,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:31,956 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:31,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:47:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:31,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:31,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:32,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:47:32,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064023234] [2023-11-29 03:47:32,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119761844] [2023-11-29 03:47:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119761844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:47:32,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:47:32,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:47:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84342799] [2023-11-29 03:47:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:47:32,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:47:32,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:32,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:47:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:32,067 INFO L87 Difference]: Start difference. First operand 176 states and 205 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 03:47:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:32,113 INFO L93 Difference]: Finished difference Result 185 states and 211 transitions. [2023-11-29 03:47:32,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:47:32,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 43 [2023-11-29 03:47:32,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:32,115 INFO L225 Difference]: With dead ends: 185 [2023-11-29 03:47:32,115 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 03:47:32,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:47:32,116 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:32,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 78 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:47:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 03:47:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2023-11-29 03:47:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 161 states have (on average 1.204968944099379) internal successors, (194), 167 states have internal predecessors, (194), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:47:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 208 transitions. [2023-11-29 03:47:32,134 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 208 transitions. Word has length 43 [2023-11-29 03:47:32,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:32,135 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 208 transitions. [2023-11-29 03:47:32,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 03:47:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 208 transitions. [2023-11-29 03:47:32,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:47:32,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:32,135 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-29 03:47:32,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:47:32,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:32,336 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:32,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:32,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2081795772, now seen corresponding path program 1 times [2023-11-29 03:47:32,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:32,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077452288] [2023-11-29 03:47:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:32,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:32,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122842665] [2023-11-29 03:47:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:32,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:32,343 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:32,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:47:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:32,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:32,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:32,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:32,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077452288] [2023-11-29 03:47:32,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122842665] [2023-11-29 03:47:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122842665] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:32,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:47:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083335022] [2023-11-29 03:47:32,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:32,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:47:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:47:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:47:32,479 INFO L87 Difference]: Start difference. First operand 179 states and 208 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 03:47:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:32,917 INFO L93 Difference]: Finished difference Result 218 states and 248 transitions. [2023-11-29 03:47:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:47:32,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 46 [2023-11-29 03:47:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:32,919 INFO L225 Difference]: With dead ends: 218 [2023-11-29 03:47:32,919 INFO L226 Difference]: Without dead ends: 217 [2023-11-29 03:47:32,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:47:32,920 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 270 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:32,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 92 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:47:32,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-29 03:47:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2023-11-29 03:47:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 187 states have (on average 1.2032085561497325) internal successors, (225), 193 states have internal predecessors, (225), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:47:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2023-11-29 03:47:32,941 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 46 [2023-11-29 03:47:32,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:32,941 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2023-11-29 03:47:32,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 03:47:32,942 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2023-11-29 03:47:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 03:47:32,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:32,942 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-11-29 03:47:32,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:47:33,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 03:47:33,143 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:33,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1051778377, now seen corresponding path program 1 times [2023-11-29 03:47:33,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:33,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115052281] [2023-11-29 03:47:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:33,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:33,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:33,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132197434] [2023-11-29 03:47:33,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:33,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:33,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:33,164 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:33,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:47:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:33,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:47:33,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:33,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:33,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115052281] [2023-11-29 03:47:33,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:33,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132197434] [2023-11-29 03:47:33,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132197434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:33,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:33,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:47:33,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592102356] [2023-11-29 03:47:33,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:33,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:47:33,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:47:33,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:47:33,416 INFO L87 Difference]: Start difference. First operand 207 states and 243 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 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 03:47:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:33,788 INFO L93 Difference]: Finished difference Result 259 states and 303 transitions. [2023-11-29 03:47:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:47:33,788 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 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 46 [2023-11-29 03:47:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:33,790 INFO L225 Difference]: With dead ends: 259 [2023-11-29 03:47:33,790 INFO L226 Difference]: Without dead ends: 258 [2023-11-29 03:47:33,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:47:33,790 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 183 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:33,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 119 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-11-29 03:47:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 244. [2023-11-29 03:47:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 222 states have (on average 1.1981981981981982) internal successors, (266), 228 states have internal predecessors, (266), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 288 transitions. [2023-11-29 03:47:33,807 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 288 transitions. Word has length 46 [2023-11-29 03:47:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:33,807 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 288 transitions. [2023-11-29 03:47:33,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 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 03:47:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 288 transitions. [2023-11-29 03:47:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 03:47:33,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:33,808 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-29 03:47:33,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 03:47:34,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:34,008 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:34,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash -111159403, now seen corresponding path program 1 times [2023-11-29 03:47:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:34,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269103771] [2023-11-29 03:47:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:34,014 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:34,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017850718] [2023-11-29 03:47:34,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:34,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:34,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:34,015 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:34,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:47:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:34,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:47:34,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:34,099 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 03:47:34,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:34,149 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 03:47:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:34,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269103771] [2023-11-29 03:47:34,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:34,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017850718] [2023-11-29 03:47:34,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017850718] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:34,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:34,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:47:34,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429256638] [2023-11-29 03:47:34,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:34,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:47:34,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:34,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:47:34,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:47:34,151 INFO L87 Difference]: Start difference. First operand 244 states and 288 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 03:47:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:34,345 INFO L93 Difference]: Finished difference Result 255 states and 292 transitions. [2023-11-29 03:47:34,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:47:34,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 47 [2023-11-29 03:47:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:34,347 INFO L225 Difference]: With dead ends: 255 [2023-11-29 03:47:34,348 INFO L226 Difference]: Without dead ends: 254 [2023-11-29 03:47:34,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:47:34,348 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 257 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:34,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 82 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:47:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-29 03:47:34,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 246. [2023-11-29 03:47:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 224 states have (on average 1.1785714285714286) internal successors, (264), 230 states have internal predecessors, (264), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:34,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 286 transitions. [2023-11-29 03:47:34,373 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 286 transitions. Word has length 47 [2023-11-29 03:47:34,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:34,373 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 286 transitions. [2023-11-29 03:47:34,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 03:47:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 286 transitions. [2023-11-29 03:47:34,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 03:47:34,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:34,374 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, 1, 1] [2023-11-29 03:47:34,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:34,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:34,575 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:34,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1754608759, now seen corresponding path program 1 times [2023-11-29 03:47:34,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:34,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146488414] [2023-11-29 03:47:34,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:34,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:34,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:34,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117151261] [2023-11-29 03:47:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:34,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:34,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:34,588 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:34,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:47:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:34,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:47:34,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:34,778 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 03:47:34,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:34,864 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 03:47:34,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:34,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146488414] [2023-11-29 03:47:34,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:34,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117151261] [2023-11-29 03:47:34,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117151261] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:47:34,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:47:34,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:47:34,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078555532] [2023-11-29 03:47:34,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:34,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:47:34,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:34,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:47:34,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:47:34,867 INFO L87 Difference]: Start difference. First operand 246 states and 286 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 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 03:47:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:35,186 INFO L93 Difference]: Finished difference Result 258 states and 294 transitions. [2023-11-29 03:47:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:47:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 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 47 [2023-11-29 03:47:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:35,188 INFO L225 Difference]: With dead ends: 258 [2023-11-29 03:47:35,188 INFO L226 Difference]: Without dead ends: 257 [2023-11-29 03:47:35,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:47:35,189 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 282 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:35,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 111 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-29 03:47:35,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 241. [2023-11-29 03:47:35,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1689497716894977) internal successors, (256), 225 states have internal predecessors, (256), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 278 transitions. [2023-11-29 03:47:35,206 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 278 transitions. Word has length 47 [2023-11-29 03:47:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:35,206 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 278 transitions. [2023-11-29 03:47:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 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 03:47:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 278 transitions. [2023-11-29 03:47:35,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 03:47:35,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:35,207 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 03:47:35,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:47:35,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:35,407 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:35,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:35,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1359628045, now seen corresponding path program 2 times [2023-11-29 03:47:35,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:35,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520909687] [2023-11-29 03:47:35,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:35,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:35,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:35,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973150028] [2023-11-29 03:47:35,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:35,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:35,413 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:35,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:47:35,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:35,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:35,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:47:35,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:35,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:37,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:37,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520909687] [2023-11-29 03:47:37,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:37,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973150028] [2023-11-29 03:47:37,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973150028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:37,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:37,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:47:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980744187] [2023-11-29 03:47:37,580 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:37,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:47:37,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:37,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:47:37,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:47:37,581 INFO L87 Difference]: Start difference. First operand 241 states and 278 transitions. Second operand has 11 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 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 03:47:38,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:38,223 INFO L93 Difference]: Finished difference Result 251 states and 286 transitions. [2023-11-29 03:47:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:47:38,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 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 50 [2023-11-29 03:47:38,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:38,225 INFO L225 Difference]: With dead ends: 251 [2023-11-29 03:47:38,226 INFO L226 Difference]: Without dead ends: 250 [2023-11-29 03:47:38,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:47:38,227 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 99 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:38,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 140 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:47:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-29 03:47:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 241. [2023-11-29 03:47:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1643835616438356) internal successors, (255), 225 states have internal predecessors, (255), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 277 transitions. [2023-11-29 03:47:38,250 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 277 transitions. Word has length 50 [2023-11-29 03:47:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:38,251 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 277 transitions. [2023-11-29 03:47:38,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 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 03:47:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 277 transitions. [2023-11-29 03:47:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 03:47:38,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:38,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 03:47:38,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 03:47:38,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:47:38,463 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:38,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:38,463 INFO L85 PathProgramCache]: Analyzing trace with hash 801203622, now seen corresponding path program 2 times [2023-11-29 03:47:38,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:38,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76471095] [2023-11-29 03:47:38,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:38,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:38,468 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236922888] [2023-11-29 03:47:38,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:38,469 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:38,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:47:38,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:38,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:38,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:47:38,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:38,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:40,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76471095] [2023-11-29 03:47:40,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236922888] [2023-11-29 03:47:40,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236922888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:40,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:40,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:47:40,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123341048] [2023-11-29 03:47:40,007 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:40,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:47:40,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:47:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:47:40,008 INFO L87 Difference]: Start difference. First operand 241 states and 277 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 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 03:47:40,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:40,462 INFO L93 Difference]: Finished difference Result 250 states and 285 transitions. [2023-11-29 03:47:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:47:40,463 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 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 51 [2023-11-29 03:47:40,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:40,464 INFO L225 Difference]: With dead ends: 250 [2023-11-29 03:47:40,464 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 03:47:40,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:47:40,465 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 96 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:40,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 142 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:40,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 03:47:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 241. [2023-11-29 03:47:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1598173515981736) internal successors, (254), 225 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 276 transitions. [2023-11-29 03:47:40,489 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 276 transitions. Word has length 51 [2023-11-29 03:47:40,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:40,489 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 276 transitions. [2023-11-29 03:47:40,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 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 03:47:40,490 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 276 transitions. [2023-11-29 03:47:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:47:40,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:40,490 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2023-11-29 03:47:40,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 03:47:40,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:47:40,691 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:40,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1886726471, now seen corresponding path program 1 times [2023-11-29 03:47:40,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:40,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946654499] [2023-11-29 03:47:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:40,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:40,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:40,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296960801] [2023-11-29 03:47:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:40,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:40,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:40,697 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:40,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:47:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:40,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:47:40,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:41,012 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:41,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:47,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946654499] [2023-11-29 03:47:47,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:47,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296960801] [2023-11-29 03:47:47,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296960801] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:47,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:47,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:47:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817809557] [2023-11-29 03:47:47,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:47,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:47:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:47,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:47:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2023-11-29 03:47:47,223 INFO L87 Difference]: Start difference. First operand 241 states and 276 transitions. Second operand has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 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 03:47:47,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:47,656 INFO L93 Difference]: Finished difference Result 245 states and 278 transitions. [2023-11-29 03:47:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:47:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 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 54 [2023-11-29 03:47:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:47,657 INFO L225 Difference]: With dead ends: 245 [2023-11-29 03:47:47,657 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 03:47:47,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=174, Invalid=475, Unknown=1, NotChecked=0, Total=650 [2023-11-29 03:47:47,658 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 101 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:47,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 107 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:47,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 03:47:47,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 241. [2023-11-29 03:47:47,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1552511415525115) internal successors, (253), 225 states have internal predecessors, (253), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:47,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 275 transitions. [2023-11-29 03:47:47,682 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 275 transitions. Word has length 54 [2023-11-29 03:47:47,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:47,682 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 275 transitions. [2023-11-29 03:47:47,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 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 03:47:47,682 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 275 transitions. [2023-11-29 03:47:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:47:47,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:47,683 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2023-11-29 03:47:47,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:47:47,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:47,883 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:47,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1944341139, now seen corresponding path program 2 times [2023-11-29 03:47:47,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:47,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546352461] [2023-11-29 03:47:47,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:47,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:47,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771275547] [2023-11-29 03:47:47,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:47,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:47,890 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:47,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:47:47,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:47,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:47,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:47:47,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:48,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:49,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:49,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546352461] [2023-11-29 03:47:49,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:49,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771275547] [2023-11-29 03:47:49,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771275547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:49,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:49,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:47:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562005058] [2023-11-29 03:47:49,619 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:49,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:47:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:47:49,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:47:49,620 INFO L87 Difference]: Start difference. First operand 241 states and 275 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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 03:47:50,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:50,201 INFO L93 Difference]: Finished difference Result 245 states and 277 transitions. [2023-11-29 03:47:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:47:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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 54 [2023-11-29 03:47:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:50,203 INFO L225 Difference]: With dead ends: 245 [2023-11-29 03:47:50,203 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 03:47:50,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:47:50,204 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 122 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:50,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 131 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:47:50,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 03:47:50,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 241. [2023-11-29 03:47:50,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1506849315068493) internal successors, (252), 225 states have internal predecessors, (252), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 274 transitions. [2023-11-29 03:47:50,219 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 274 transitions. Word has length 54 [2023-11-29 03:47:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:50,220 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 274 transitions. [2023-11-29 03:47:50,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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 03:47:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 274 transitions. [2023-11-29 03:47:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:47:50,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:50,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:50,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 03:47:50,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:50,421 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:50,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1641021600, now seen corresponding path program 1 times [2023-11-29 03:47:50,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:50,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165505810] [2023-11-29 03:47:50,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:50,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:50,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603758883] [2023-11-29 03:47:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:50,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:50,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:50,427 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:50,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:47:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:47:50,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:47:50,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:50,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:52,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:52,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165505810] [2023-11-29 03:47:52,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:52,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603758883] [2023-11-29 03:47:52,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603758883] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:52,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:52,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:47:52,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502961441] [2023-11-29 03:47:52,312 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:52,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:47:52,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:52,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:47:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:47:52,313 INFO L87 Difference]: Start difference. First operand 241 states and 274 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 03:47:53,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:53,051 INFO L93 Difference]: Finished difference Result 269 states and 304 transitions. [2023-11-29 03:47:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:47:53,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 55 [2023-11-29 03:47:53,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:53,053 INFO L225 Difference]: With dead ends: 269 [2023-11-29 03:47:53,053 INFO L226 Difference]: Without dead ends: 268 [2023-11-29 03:47:53,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:47:53,054 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 87 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:53,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 176 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:47:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-29 03:47:53,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 255. [2023-11-29 03:47:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 233 states have (on average 1.1416309012875536) internal successors, (266), 239 states have internal predecessors, (266), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 288 transitions. [2023-11-29 03:47:53,078 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 288 transitions. Word has length 55 [2023-11-29 03:47:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:53,079 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 288 transitions. [2023-11-29 03:47:53,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 03:47:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 288 transitions. [2023-11-29 03:47:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:47:53,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:53,080 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:47:53,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 03:47:53,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 03:47:53,285 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:53,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:53,285 INFO L85 PathProgramCache]: Analyzing trace with hash -145033108, now seen corresponding path program 2 times [2023-11-29 03:47:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:53,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967955866] [2023-11-29 03:47:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:53,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:53,290 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:53,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737700752] [2023-11-29 03:47:53,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:53,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:53,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:53,291 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:53,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 03:47:53,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:53,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:53,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:47:53,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:53,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:47:54,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:47:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967955866] [2023-11-29 03:47:54,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:47:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737700752] [2023-11-29 03:47:54,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737700752] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:47:54,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:47:54,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:47:54,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812615092] [2023-11-29 03:47:54,786 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:47:54,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:47:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:47:54,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:47:54,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:47:54,787 INFO L87 Difference]: Start difference. First operand 255 states and 288 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 03:47:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:47:55,441 INFO L93 Difference]: Finished difference Result 258 states and 290 transitions. [2023-11-29 03:47:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:47:55,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 55 [2023-11-29 03:47:55,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:47:55,443 INFO L225 Difference]: With dead ends: 258 [2023-11-29 03:47:55,443 INFO L226 Difference]: Without dead ends: 257 [2023-11-29 03:47:55,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:47:55,444 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 116 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:47:55,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 161 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:47:55,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-29 03:47:55,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2023-11-29 03:47:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 233 states have (on average 1.1373390557939915) internal successors, (265), 239 states have internal predecessors, (265), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:47:55,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 287 transitions. [2023-11-29 03:47:55,465 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 287 transitions. Word has length 55 [2023-11-29 03:47:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:47:55,465 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 287 transitions. [2023-11-29 03:47:55,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 03:47:55,465 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 287 transitions. [2023-11-29 03:47:55,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:47:55,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:47:55,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 03:47:55,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 03:47:55,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 03:47:55,667 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:47:55,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:47:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash -919158682, now seen corresponding path program 2 times [2023-11-29 03:47:55,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:47:55,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328797832] [2023-11-29 03:47:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:47:55,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:47:55,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:47:55,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280409254] [2023-11-29 03:47:55,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:47:55,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:47:55,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:47:55,675 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:47:55,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 03:47:55,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:47:55,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:47:55,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:47:55,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:47:56,045 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:47:56,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:48:07,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:48:07,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328797832] [2023-11-29 03:48:07,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:48:07,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280409254] [2023-11-29 03:48:07,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280409254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:48:07,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:48:07,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:48:07,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083232329] [2023-11-29 03:48:07,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:48:07,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:48:07,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:48:07,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:48:07,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=291, Unknown=1, NotChecked=0, Total=420 [2023-11-29 03:48:07,585 INFO L87 Difference]: Start difference. First operand 255 states and 287 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 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 03:48:08,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:48:08,428 INFO L93 Difference]: Finished difference Result 260 states and 291 transitions. [2023-11-29 03:48:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:48:08,428 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 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 59 [2023-11-29 03:48:08,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:48:08,430 INFO L225 Difference]: With dead ends: 260 [2023-11-29 03:48:08,430 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 03:48:08,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=309, Invalid=812, Unknown=1, NotChecked=0, Total=1122 [2023-11-29 03:48:08,431 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 125 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:48:08,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 169 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:48:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 03:48:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 241. [2023-11-29 03:48:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1415525114155252) internal successors, (250), 225 states have internal predecessors, (250), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:48:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 272 transitions. [2023-11-29 03:48:08,450 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 272 transitions. Word has length 59 [2023-11-29 03:48:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:48:08,450 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 272 transitions. [2023-11-29 03:48:08,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 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 03:48:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 272 transitions. [2023-11-29 03:48:08,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 03:48:08,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:48:08,451 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 03:48:08,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 03:48:08,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 03:48:08,652 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:48:08,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:48:08,652 INFO L85 PathProgramCache]: Analyzing trace with hash 629403688, now seen corresponding path program 3 times [2023-11-29 03:48:08,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:48:08,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752270827] [2023-11-29 03:48:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:48:08,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:48:08,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:48:08,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596598273] [2023-11-29 03:48:08,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:48:08,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:48:08,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:48:08,660 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:48:08,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 03:48:12,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:48:12,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:48:12,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:48:12,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:48:16,639 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| Int) (|ULTIMATE.start_main_~b~0#1| Int)) (and (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (= (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 2147483647))) is different from true [2023-11-29 03:48:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 45 trivial. 2 not checked. [2023-11-29 03:48:33,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:48:39,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:48:39,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752270827] [2023-11-29 03:48:39,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:48:39,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596598273] [2023-11-29 03:48:39,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596598273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:48:39,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:48:39,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:48:39,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390539690] [2023-11-29 03:48:39,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:48:39,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:48:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:48:39,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:48:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=4, NotChecked=32, Total=342 [2023-11-29 03:48:39,312 INFO L87 Difference]: Start difference. First operand 241 states and 272 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:48:41,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:48:42,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:48:51,849 WARN L539 Checker$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 03:49:16,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:20,893 WARN L539 Checker$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 03:49:24,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:28,980 WARN L539 Checker$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 03:49:32,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:49,704 WARN L539 Checker$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 03:49:53,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:49:57,790 WARN L539 Checker$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 03:50:01,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:05,327 WARN L539 Checker$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 03:50:09,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:12,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:14,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:18,505 WARN L539 Checker$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 03:50:21,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:25,213 WARN L539 Checker$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 03:50:29,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:44,477 WARN L539 Checker$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 03:50:45,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:47,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:50:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:50:47,356 INFO L93 Difference]: Finished difference Result 260 states and 286 transitions. [2023-11-29 03:50:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:50:47,356 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2023-11-29 03:50:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:50:47,358 INFO L225 Difference]: With dead ends: 260 [2023-11-29 03:50:47,358 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 03:50:47,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 71.8s TimeCoverageRelationStatistics Valid=166, Invalid=525, Unknown=15, NotChecked=50, Total=756 [2023-11-29 03:50:47,359 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 65 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 2 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 78.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:50:47,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 129 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 277 Invalid, 18 Unknown, 74 Unchecked, 78.3s Time] [2023-11-29 03:50:47,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 03:50:47,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 241. [2023-11-29 03:50:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 219 states have (on average 1.1324200913242009) internal successors, (248), 225 states have internal predecessors, (248), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:50:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 270 transitions. [2023-11-29 03:50:47,387 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 270 transitions. Word has length 71 [2023-11-29 03:50:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:50:47,387 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 270 transitions. [2023-11-29 03:50:47,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:50:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 270 transitions. [2023-11-29 03:50:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 03:50:47,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:50:47,388 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 03:50:47,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 03:50:47,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 03:50:47,589 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:50:47,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:50:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1963322095, now seen corresponding path program 3 times [2023-11-29 03:50:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:50:47,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702729848] [2023-11-29 03:50:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:50:47,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:50:47,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:50:47,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122021769] [2023-11-29 03:50:47,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:50:47,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:50:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:50:47,596 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:50:47,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 03:50:49,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:50:49,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:50:49,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:50:49,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 30 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 03:51:14,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 03:51:29,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702729848] [2023-11-29 03:51:29,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122021769] [2023-11-29 03:51:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122021769] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:29,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2023-11-29 03:51:29,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374492541] [2023-11-29 03:51:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:51:29,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:51:29,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:29,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:51:29,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=254, Unknown=7, NotChecked=0, Total=342 [2023-11-29 03:51:29,506 INFO L87 Difference]: Start difference. First operand 241 states and 270 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:51:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:51:30,386 INFO L93 Difference]: Finished difference Result 277 states and 311 transitions. [2023-11-29 03:51:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:51:30,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2023-11-29 03:51:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:51:30,387 INFO L225 Difference]: With dead ends: 277 [2023-11-29 03:51:30,387 INFO L226 Difference]: Without dead ends: 276 [2023-11-29 03:51:30,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=94, Invalid=279, Unknown=7, NotChecked=0, Total=380 [2023-11-29 03:51:30,388 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 57 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:51:30,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 72 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:51:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-11-29 03:51:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 273. [2023-11-29 03:51:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 251 states have (on average 1.1314741035856575) internal successors, (284), 257 states have internal predecessors, (284), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:51:30,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 306 transitions. [2023-11-29 03:51:30,409 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 306 transitions. Word has length 72 [2023-11-29 03:51:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:51:30,410 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 306 transitions. [2023-11-29 03:51:30,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 03:51:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 306 transitions. [2023-11-29 03:51:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:51:30,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:51:30,411 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:51:30,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 03:51:30,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 03:51:30,611 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:51:30,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:51:30,612 INFO L85 PathProgramCache]: Analyzing trace with hash 420506478, now seen corresponding path program 3 times [2023-11-29 03:51:30,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:51:30,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055535851] [2023-11-29 03:51:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:51:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:51:30,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:51:30,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210393053] [2023-11-29 03:51:30,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:51:30,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:51:30,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:51:30,620 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:51:30,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 03:51:34,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:51:34,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:51:34,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:51:34,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:51:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 03:51:38,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:51:51,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:51:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055535851] [2023-11-29 03:51:51,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:51:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210393053] [2023-11-29 03:51:51,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210393053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:51:51,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:51:51,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:51:51,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245044224] [2023-11-29 03:51:51,323 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:51:51,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:51:51,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:51:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:51:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=290, Unknown=1, NotChecked=0, Total=380 [2023-11-29 03:51:51,325 INFO L87 Difference]: Start difference. First operand 273 states and 306 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:51:55,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:51:59,325 WARN L539 Checker$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 03:52:00,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:04,573 WARN L539 Checker$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 03:52:06,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:07,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:08,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:13,152 WARN L539 Checker$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 03:52:20,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:21,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:26,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:52:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:32,607 INFO L93 Difference]: Finished difference Result 362 states and 404 transitions. [2023-11-29 03:52:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:52:32,608 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2023-11-29 03:52:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:32,609 INFO L225 Difference]: With dead ends: 362 [2023-11-29 03:52:32,610 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 03:52:32,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=306, Invalid=953, Unknown=1, NotChecked=0, Total=1260 [2023-11-29 03:52:32,610 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 126 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:32,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 135 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 444 Invalid, 4 Unknown, 0 Unchecked, 32.5s Time] [2023-11-29 03:52:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 03:52:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 331. [2023-11-29 03:52:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.1405228758169934) internal successors, (349), 312 states have internal predecessors, (349), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:52:32,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 377 transitions. [2023-11-29 03:52:32,650 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 377 transitions. Word has length 75 [2023-11-29 03:52:32,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:32,651 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 377 transitions. [2023-11-29 03:52:32,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:52:32,651 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 377 transitions. [2023-11-29 03:52:32,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:52:32,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:32,652 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:32,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 03:52:32,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 03:52:32,852 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:52:32,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 362891810, now seen corresponding path program 4 times [2023-11-29 03:52:32,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:32,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066225428] [2023-11-29 03:52:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:32,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:32,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:32,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521404528] [2023-11-29 03:52:32,860 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:52:32,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:32,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:32,861 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:32,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 03:52:32,961 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:52:32,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:52:32,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:52:32,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:52:33,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:34,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:34,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066225428] [2023-11-29 03:52:34,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:34,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521404528] [2023-11-29 03:52:34,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521404528] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:34,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:34,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 03:52:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965751336] [2023-11-29 03:52:34,740 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:34,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:52:34,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:52:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:52:34,741 INFO L87 Difference]: Start difference. First operand 331 states and 377 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 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 03:52:35,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:35,583 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2023-11-29 03:52:35,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:52:35,584 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 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) Word has length 75 [2023-11-29 03:52:35,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:35,585 INFO L225 Difference]: With dead ends: 338 [2023-11-29 03:52:35,585 INFO L226 Difference]: Without dead ends: 337 [2023-11-29 03:52:35,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=206, Invalid=786, Unknown=0, NotChecked=0, Total=992 [2023-11-29 03:52:35,586 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 108 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:35,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 201 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:52:35,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-11-29 03:52:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 331. [2023-11-29 03:52:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.1372549019607843) internal successors, (348), 312 states have internal predecessors, (348), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:52:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 376 transitions. [2023-11-29 03:52:35,616 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 376 transitions. Word has length 75 [2023-11-29 03:52:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:35,616 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 376 transitions. [2023-11-29 03:52:35,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 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 03:52:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 376 transitions. [2023-11-29 03:52:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:52:35,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:35,617 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:35,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 03:52:35,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:52:35,818 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:52:35,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:35,818 INFO L85 PathProgramCache]: Analyzing trace with hash 552494062, now seen corresponding path program 5 times [2023-11-29 03:52:35,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:35,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870572204] [2023-11-29 03:52:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:35,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:35,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010009628] [2023-11-29 03:52:35,825 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:52:35,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:35,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:35,826 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:35,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 03:52:35,983 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-11-29 03:52:35,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:52:35,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:52:35,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:36,377 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:52:36,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:52:37,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:52:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870572204] [2023-11-29 03:52:37,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:52:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010009628] [2023-11-29 03:52:37,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010009628] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:52:37,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:52:37,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:52:37,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326481470] [2023-11-29 03:52:37,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:52:37,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:52:37,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:52:37,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:52:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:52:37,459 INFO L87 Difference]: Start difference. First operand 331 states and 376 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 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 03:52:38,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:52:38,279 INFO L93 Difference]: Finished difference Result 351 states and 397 transitions. [2023-11-29 03:52:38,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:52:38,279 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 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) Word has length 75 [2023-11-29 03:52:38,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:52:38,281 INFO L225 Difference]: With dead ends: 351 [2023-11-29 03:52:38,281 INFO L226 Difference]: Without dead ends: 350 [2023-11-29 03:52:38,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:52:38,282 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 79 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:52:38,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 266 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:52:38,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-29 03:52:38,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 331. [2023-11-29 03:52:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.1339869281045751) internal successors, (347), 312 states have internal predecessors, (347), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:52:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 375 transitions. [2023-11-29 03:52:38,312 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 375 transitions. Word has length 75 [2023-11-29 03:52:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:52:38,312 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 375 transitions. [2023-11-29 03:52:38,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 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 03:52:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 375 transitions. [2023-11-29 03:52:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 03:52:38,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:52:38,313 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:52:38,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 03:52:38,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 03:52:38,513 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:52:38,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:52:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash 150798987, now seen corresponding path program 3 times [2023-11-29 03:52:38,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:52:38,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620560815] [2023-11-29 03:52:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:52:38,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:52:38,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:52:38,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661332402] [2023-11-29 03:52:38,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:52:38,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:52:38,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:52:38,522 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:52:38,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 03:52:39,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:52:39,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:52:39,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:52:39,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:52:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 03:52:43,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:03,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:03,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620560815] [2023-11-29 03:53:03,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:03,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661332402] [2023-11-29 03:53:03,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661332402] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:03,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:03,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:53:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451716852] [2023-11-29 03:53:03,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:03,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:53:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:53:03,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=262, Unknown=3, NotChecked=0, Total=342 [2023-11-29 03:53:03,005 INFO L87 Difference]: Start difference. First operand 331 states and 375 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:53:10,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:17,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:20,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:22,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:53:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:53:23,671 INFO L93 Difference]: Finished difference Result 358 states and 396 transitions. [2023-11-29 03:53:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:53:23,671 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2023-11-29 03:53:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:53:23,672 INFO L225 Difference]: With dead ends: 358 [2023-11-29 03:53:23,672 INFO L226 Difference]: Without dead ends: 356 [2023-11-29 03:53:23,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=260, Invalid=859, Unknown=3, NotChecked=0, Total=1122 [2023-11-29 03:53:23,673 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 112 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:53:23,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 136 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 399 Invalid, 1 Unknown, 0 Unchecked, 14.8s Time] [2023-11-29 03:53:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-29 03:53:23,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 312. [2023-11-29 03:53:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 288 states have (on average 1.1180555555555556) internal successors, (322), 294 states have internal predecessors, (322), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:53:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 348 transitions. [2023-11-29 03:53:23,699 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 348 transitions. Word has length 76 [2023-11-29 03:53:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:53:23,700 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 348 transitions. [2023-11-29 03:53:23,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:53:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 348 transitions. [2023-11-29 03:53:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 03:53:23,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:53:23,700 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 03:53:23,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 03:53:23,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 03:53:23,901 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:53:23,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1360032716, now seen corresponding path program 6 times [2023-11-29 03:53:23,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:23,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772947550] [2023-11-29 03:53:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:23,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:23,907 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:53:23,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697423356] [2023-11-29 03:53:23,907 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:53:23,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:53:23,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:23,908 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:53:23,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 03:53:25,955 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-11-29 03:53:25,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:53:25,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 03:53:25,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:53:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 9 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 03:53:52,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:53:57,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:57,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772947550] [2023-11-29 03:53:57,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:53:57,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697423356] [2023-11-29 03:53:57,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697423356] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:53:57,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:53:57,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:53:57,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797381950] [2023-11-29 03:53:57,256 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:53:57,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:53:57,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:57,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:53:57,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=388, Unknown=5, NotChecked=0, Total=506 [2023-11-29 03:53:57,257 INFO L87 Difference]: Start difference. First operand 312 states and 348 transitions. Second operand has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:54:01,541 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 03:54:05,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:09,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:13,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:17,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:19,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:23,159 WARN L539 Checker$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 03:54:27,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:31,294 WARN L539 Checker$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 03:54:35,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:39,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:43,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:47,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:49,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:50,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:54:58,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:04,456 WARN L539 Checker$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 03:55:08,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:12,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:17,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:21,726 WARN L539 Checker$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 03:55:23,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:32,317 WARN L539 Checker$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 03:55:36,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:44,365 WARN L539 Checker$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 03:55:48,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:52,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:55:56,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:08,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:22,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:30,457 WARN L539 Checker$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 03:56:34,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:38,791 WARN L539 Checker$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 03:56:42,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:45,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:50,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:56:54,180 WARN L539 Checker$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 03:56:58,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:57:00,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:57:11,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:57:15,666 WARN L539 Checker$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 03:57:19,924 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 03:57:20,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:20,432 INFO L93 Difference]: Finished difference Result 416 states and 461 transitions. [2023-11-29 03:57:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:57:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 79 [2023-11-29 03:57:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:20,435 INFO L225 Difference]: With dead ends: 416 [2023-11-29 03:57:20,435 INFO L226 Difference]: Without dead ends: 413 [2023-11-29 03:57:20,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 65.7s TimeCoverageRelationStatistics Valid=246, Invalid=929, Unknown=15, NotChecked=0, Total=1190 [2023-11-29 03:57:20,436 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 87 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 12 mSolverCounterUnsat, 38 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 38 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 166.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:20,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 290 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 756 Invalid, 38 Unknown, 0 Unchecked, 166.6s Time] [2023-11-29 03:57:20,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-29 03:57:20,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 357. [2023-11-29 03:57:20,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 331 states have (on average 1.1238670694864048) internal successors, (372), 337 states have internal predecessors, (372), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:57:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 402 transitions. [2023-11-29 03:57:20,477 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 402 transitions. Word has length 79 [2023-11-29 03:57:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:20,477 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 402 transitions. [2023-11-29 03:57:20,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 03:57:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 402 transitions. [2023-11-29 03:57:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 03:57:20,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:20,478 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 03:57:20,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-29 03:57:20,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:20,679 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:57:20,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash 788658821, now seen corresponding path program 4 times [2023-11-29 03:57:20,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:20,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418657381] [2023-11-29 03:57:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:20,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:20,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:20,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643329842] [2023-11-29 03:57:20,685 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:57:20,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:20,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:20,685 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:20,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 03:57:20,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:57:20,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:57:20,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:57:20,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:57:21,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:23,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:23,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418657381] [2023-11-29 03:57:23,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:23,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643329842] [2023-11-29 03:57:23,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643329842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:23,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:23,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 03:57:23,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157728522] [2023-11-29 03:57:23,180 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:23,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:57:23,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:23,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:57:23,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:57:23,181 INFO L87 Difference]: Start difference. First operand 357 states and 402 transitions. Second operand has 17 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 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 03:57:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:24,162 INFO L93 Difference]: Finished difference Result 366 states and 410 transitions. [2023-11-29 03:57:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:57:24,162 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 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) Word has length 80 [2023-11-29 03:57:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:24,164 INFO L225 Difference]: With dead ends: 366 [2023-11-29 03:57:24,164 INFO L226 Difference]: Without dead ends: 365 [2023-11-29 03:57:24,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=298, Invalid=1108, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:57:24,165 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 73 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:24,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 266 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:57:24,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-29 03:57:24,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 357. [2023-11-29 03:57:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 331 states have (on average 1.1208459214501512) internal successors, (371), 337 states have internal predecessors, (371), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:57:24,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 401 transitions. [2023-11-29 03:57:24,209 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 401 transitions. Word has length 80 [2023-11-29 03:57:24,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:24,210 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 401 transitions. [2023-11-29 03:57:24,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 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 03:57:24,210 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 401 transitions. [2023-11-29 03:57:24,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 03:57:24,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:24,211 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:24,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 03:57:24,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:24,412 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:57:24,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:24,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1496360029, now seen corresponding path program 1 times [2023-11-29 03:57:24,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:24,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825508647] [2023-11-29 03:57:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:24,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:24,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130732550] [2023-11-29 03:57:24,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:24,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:24,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:24,422 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:24,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 03:57:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:24,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:57:24,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:24,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825508647] [2023-11-29 03:57:24,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:24,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130732550] [2023-11-29 03:57:24,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130732550] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:24,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:57:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:57:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245431788] [2023-11-29 03:57:24,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:57:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:57:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:57:24,892 INFO L87 Difference]: Start difference. First operand 357 states and 401 transitions. Second operand has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:57:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:25,550 INFO L93 Difference]: Finished difference Result 744 states and 866 transitions. [2023-11-29 03:57:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:57:25,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 88 [2023-11-29 03:57:25,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:25,553 INFO L225 Difference]: With dead ends: 744 [2023-11-29 03:57:25,553 INFO L226 Difference]: Without dead ends: 743 [2023-11-29 03:57:25,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=357, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:57:25,554 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 333 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:25,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 164 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:57:25,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-29 03:57:25,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 616. [2023-11-29 03:57:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 579 states have (on average 1.1468048359240068) internal successors, (664), 585 states have internal predecessors, (664), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 03:57:25,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 716 transitions. [2023-11-29 03:57:25,611 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 716 transitions. Word has length 88 [2023-11-29 03:57:25,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:25,611 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 716 transitions. [2023-11-29 03:57:25,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:57:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 716 transitions. [2023-11-29 03:57:25,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 03:57:25,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:25,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:25,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 03:57:25,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:25,813 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:57:25,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:25,814 INFO L85 PathProgramCache]: Analyzing trace with hash 857479435, now seen corresponding path program 1 times [2023-11-29 03:57:25,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:25,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805062993] [2023-11-29 03:57:25,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:25,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:25,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446468115] [2023-11-29 03:57:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:25,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:25,821 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:25,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 03:57:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:25,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:57:25,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:26,038 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:26,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:26,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805062993] [2023-11-29 03:57:26,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446468115] [2023-11-29 03:57:26,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446468115] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:26,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:57:26,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:57:26,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372650101] [2023-11-29 03:57:26,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:26,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:57:26,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:26,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:57:26,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:57:26,179 INFO L87 Difference]: Start difference. First operand 616 states and 716 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:57:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:26,730 INFO L93 Difference]: Finished difference Result 743 states and 863 transitions. [2023-11-29 03:57:26,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:57:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 89 [2023-11-29 03:57:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:26,734 INFO L225 Difference]: With dead ends: 743 [2023-11-29 03:57:26,734 INFO L226 Difference]: Without dead ends: 742 [2023-11-29 03:57:26,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=357, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:57:26,735 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 489 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:26,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 170 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:57:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-11-29 03:57:26,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 629. [2023-11-29 03:57:26,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 591 states have (on average 1.1472081218274113) internal successors, (678), 597 states have internal predecessors, (678), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 03:57:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 732 transitions. [2023-11-29 03:57:26,796 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 732 transitions. Word has length 89 [2023-11-29 03:57:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:26,797 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 732 transitions. [2023-11-29 03:57:26,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:57:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 732 transitions. [2023-11-29 03:57:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 03:57:26,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:26,798 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-29 03:57:26,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 03:57:26,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:26,998 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:57:26,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:26,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1231135311, now seen corresponding path program 2 times [2023-11-29 03:57:26,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:26,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612042468] [2023-11-29 03:57:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:26,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:27,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:27,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150090733] [2023-11-29 03:57:27,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:57:27,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:27,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:27,008 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:27,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 03:57:27,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:57:27,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:57:27,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:57:27,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:57:27,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612042468] [2023-11-29 03:57:27,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150090733] [2023-11-29 03:57:27,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150090733] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:57:27,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:57:27,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 03:57:27,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062536449] [2023-11-29 03:57:27,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:27,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 03:57:27,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:27,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 03:57:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:57:27,346 INFO L87 Difference]: Start difference. First operand 629 states and 732 transitions. Second operand has 22 states, 21 states have (on average 7.380952380952381) internal successors, (155), 22 states have internal predecessors, (155), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:57:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:27,740 INFO L93 Difference]: Finished difference Result 1317 states and 1562 transitions. [2023-11-29 03:57:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 03:57:27,740 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.380952380952381) internal successors, (155), 22 states have internal predecessors, (155), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 90 [2023-11-29 03:57:27,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:27,745 INFO L225 Difference]: With dead ends: 1317 [2023-11-29 03:57:27,745 INFO L226 Difference]: Without dead ends: 1316 [2023-11-29 03:57:27,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 03:57:27,746 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 278 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:27,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 341 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:57:27,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-29 03:57:27,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1286. [2023-11-29 03:57:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1217 states have (on average 1.1552999178307313) internal successors, (1406), 1223 states have internal predecessors, (1406), 52 states have call successors, (52), 10 states have call predecessors, (52), 10 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-29 03:57:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1510 transitions. [2023-11-29 03:57:27,869 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1510 transitions. Word has length 90 [2023-11-29 03:57:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:27,870 INFO L495 AbstractCegarLoop]: Abstraction has 1286 states and 1510 transitions. [2023-11-29 03:57:27,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.380952380952381) internal successors, (155), 22 states have internal predecessors, (155), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:57:27,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1510 transitions. [2023-11-29 03:57:27,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 03:57:27,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:27,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:27,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 03:57:28,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:28,072 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:57:28,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1918031731, now seen corresponding path program 7 times [2023-11-29 03:57:28,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:28,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846356930] [2023-11-29 03:57:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:28,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:28,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665679324] [2023-11-29 03:57:28,078 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 03:57:28,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:28,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:28,079 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:28,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 03:57:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:57:28,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 03:57:28,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:28,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:57:30,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846356930] [2023-11-29 03:57:30,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:57:30,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665679324] [2023-11-29 03:57:30,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665679324] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:57:30,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:57:30,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 03:57:30,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109222114] [2023-11-29 03:57:30,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:57:30,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:57:30,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:57:30,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:57:30,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:57:30,142 INFO L87 Difference]: Start difference. First operand 1286 states and 1510 transitions. Second operand has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 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 03:57:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:57:31,454 INFO L93 Difference]: Finished difference Result 1339 states and 1567 transitions. [2023-11-29 03:57:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:57:31,455 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 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 96 [2023-11-29 03:57:31,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:57:31,461 INFO L225 Difference]: With dead ends: 1339 [2023-11-29 03:57:31,461 INFO L226 Difference]: Without dead ends: 1337 [2023-11-29 03:57:31,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=317, Invalid=1405, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 03:57:31,462 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 112 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:57:31,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 361 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:57:31,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2023-11-29 03:57:31,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1325. [2023-11-29 03:57:31,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1254 states have (on average 1.1523125996810208) internal successors, (1445), 1260 states have internal predecessors, (1445), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 03:57:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1553 transitions. [2023-11-29 03:57:31,597 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1553 transitions. Word has length 96 [2023-11-29 03:57:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:57:31,597 INFO L495 AbstractCegarLoop]: Abstraction has 1325 states and 1553 transitions. [2023-11-29 03:57:31,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 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 03:57:31,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1553 transitions. [2023-11-29 03:57:31,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 03:57:31,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:57:31,598 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:57:31,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 03:57:31,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:31,799 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 03:57:31,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:57:31,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1728429479, now seen corresponding path program 8 times [2023-11-29 03:57:31,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:57:31,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274337325] [2023-11-29 03:57:31,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:57:31,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:57:31,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:57:31,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311419537] [2023-11-29 03:57:31,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:57:31,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:57:31,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:57:31,807 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:57:31,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 03:57:31,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:57:31,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:57:31,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 03:57:31,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:57:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:57:33,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:57:49,859 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 46 DAG size of output: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:58:45,139 WARN L293 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 79 DAG size of output: 60 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:59:29,328 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:59:39,322 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:00:12,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:12,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274337325] [2023-11-29 04:00:12,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:12,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311419537] [2023-11-29 04:00:12,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311419537] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:12,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:12,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 04:00:12,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154772590] [2023-11-29 04:00:12,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:12,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 04:00:12,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 04:00:12,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=710, Unknown=4, NotChecked=0, Total=992 [2023-11-29 04:00:12,243 INFO L87 Difference]: Start difference. First operand 1325 states and 1553 transitions. Second operand has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 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 04:00:14,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:14,396 INFO L93 Difference]: Finished difference Result 1332 states and 1557 transitions. [2023-11-29 04:00:14,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:00:14,396 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 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 96 [2023-11-29 04:00:14,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:14,401 INFO L225 Difference]: With dead ends: 1332 [2023-11-29 04:00:14,401 INFO L226 Difference]: Without dead ends: 1330 [2023-11-29 04:00:14,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 65.8s TimeCoverageRelationStatistics Valid=615, Invalid=1831, Unknown=4, NotChecked=0, Total=2450 [2023-11-29 04:00:14,403 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 121 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:14,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 365 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:00:14,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2023-11-29 04:00:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1325. [2023-11-29 04:00:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1254 states have (on average 1.1507177033492824) internal successors, (1443), 1260 states have internal predecessors, (1443), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 04:00:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1551 transitions. [2023-11-29 04:00:14,515 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1551 transitions. Word has length 96 [2023-11-29 04:00:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:14,516 INFO L495 AbstractCegarLoop]: Abstraction has 1325 states and 1551 transitions. [2023-11-29 04:00:14,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 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 04:00:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1551 transitions. [2023-11-29 04:00:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:00:14,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:14,517 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 04:00:14,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 04:00:14,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:14,718 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 04:00:14,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1740651807, now seen corresponding path program 9 times [2023-11-29 04:00:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:14,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061839665] [2023-11-29 04:00:14,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:14,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:14,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131450498] [2023-11-29 04:00:14,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:00:14,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:14,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:14,729 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:14,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 04:00:16,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:00:16,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:16,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:00:16,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-29 04:00:16,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:00:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061839665] [2023-11-29 04:00:16,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:16,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131450498] [2023-11-29 04:00:16,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131450498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:16,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:16,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:00:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832322516] [2023-11-29 04:00:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:16,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:00:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:00:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:00:16,413 INFO L87 Difference]: Start difference. First operand 1325 states and 1551 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 04:00:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:17,917 INFO L93 Difference]: Finished difference Result 1481 states and 1755 transitions. [2023-11-29 04:00:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:00:17,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 100 [2023-11-29 04:00:17,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:17,923 INFO L225 Difference]: With dead ends: 1481 [2023-11-29 04:00:17,923 INFO L226 Difference]: Without dead ends: 1479 [2023-11-29 04:00:17,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:00:17,924 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 52 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:17,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 87 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:00:17,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2023-11-29 04:00:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1323. [2023-11-29 04:00:18,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1245 states have (on average 1.1429718875502008) internal successors, (1423), 1251 states have internal predecessors, (1423), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 04:00:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1545 transitions. [2023-11-29 04:00:18,044 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1545 transitions. Word has length 100 [2023-11-29 04:00:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:18,044 INFO L495 AbstractCegarLoop]: Abstraction has 1323 states and 1545 transitions. [2023-11-29 04:00:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 04:00:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1545 transitions. [2023-11-29 04:00:18,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:00:18,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:18,046 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 04:00:18,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 04:00:18,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:18,246 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 04:00:18,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:18,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1683037139, now seen corresponding path program 10 times [2023-11-29 04:00:18,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:18,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288250506] [2023-11-29 04:00:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:18,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:18,252 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:18,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936805166] [2023-11-29 04:00:18,252 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:00:18,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:18,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:18,253 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:18,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 04:00:18,344 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:00:18,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:18,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 04:00:18,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:00:18,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:20,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:20,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288250506] [2023-11-29 04:00:20,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:20,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936805166] [2023-11-29 04:00:20,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936805166] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:20,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:20,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-29 04:00:20,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801322132] [2023-11-29 04:00:20,337 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:20,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 04:00:20,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:20,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 04:00:20,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:00:20,339 INFO L87 Difference]: Start difference. First operand 1323 states and 1545 transitions. Second operand has 21 states, 20 states have (on average 4.15) internal successors, (83), 21 states have internal predecessors, (83), 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 04:00:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:21,798 INFO L93 Difference]: Finished difference Result 1355 states and 1579 transitions. [2023-11-29 04:00:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:00:21,799 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.15) internal successors, (83), 21 states have internal predecessors, (83), 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 100 [2023-11-29 04:00:21,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:21,803 INFO L225 Difference]: With dead ends: 1355 [2023-11-29 04:00:21,804 INFO L226 Difference]: Without dead ends: 1353 [2023-11-29 04:00:21,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=329, Invalid=1651, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 04:00:21,805 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:21,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 415 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:00:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2023-11-29 04:00:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1302. [2023-11-29 04:00:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1225 states have (on average 1.1444897959183673) internal successors, (1402), 1231 states have internal predecessors, (1402), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 04:00:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1522 transitions. [2023-11-29 04:00:21,916 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1522 transitions. Word has length 100 [2023-11-29 04:00:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:21,917 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 1522 transitions. [2023-11-29 04:00:21,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.15) internal successors, (83), 21 states have internal predecessors, (83), 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 04:00:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1522 transitions. [2023-11-29 04:00:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:00:21,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:21,918 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 04:00:21,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 04:00:22,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:22,119 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 04:00:22,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:22,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1810915207, now seen corresponding path program 11 times [2023-11-29 04:00:22,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:22,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967913173] [2023-11-29 04:00:22,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:22,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:22,125 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:22,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609712471] [2023-11-29 04:00:22,125 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:00:22,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:22,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:22,126 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:22,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 04:00:22,245 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-11-29 04:00:22,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:22,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 04:00:22,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:00:22,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:00:23,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967913173] [2023-11-29 04:00:23,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609712471] [2023-11-29 04:00:23,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609712471] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:00:23,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:00:23,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 04:00:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989031278] [2023-11-29 04:00:23,974 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:00:23,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 04:00:23,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:23,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 04:00:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:00:23,975 INFO L87 Difference]: Start difference. First operand 1302 states and 1522 transitions. Second operand has 20 states, 19 states have (on average 4.368421052631579) internal successors, (83), 20 states have internal predecessors, (83), 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 04:00:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:25,263 INFO L93 Difference]: Finished difference Result 1310 states and 1528 transitions. [2023-11-29 04:00:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:00:25,263 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.368421052631579) internal successors, (83), 20 states have internal predecessors, (83), 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 100 [2023-11-29 04:00:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:25,268 INFO L225 Difference]: With dead ends: 1310 [2023-11-29 04:00:25,268 INFO L226 Difference]: Without dead ends: 1308 [2023-11-29 04:00:25,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=377, Invalid=1603, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 04:00:25,269 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 86 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:25,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 352 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:00:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-11-29 04:00:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1284. [2023-11-29 04:00:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1208 states have (on average 1.1432119205298013) internal successors, (1381), 1214 states have internal predecessors, (1381), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 04:00:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1499 transitions. [2023-11-29 04:00:25,390 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1499 transitions. Word has length 100 [2023-11-29 04:00:25,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:25,390 INFO L495 AbstractCegarLoop]: Abstraction has 1284 states and 1499 transitions. [2023-11-29 04:00:25,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.368421052631579) internal successors, (83), 20 states have internal predecessors, (83), 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 04:00:25,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1499 transitions. [2023-11-29 04:00:25,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:00:25,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:25,391 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 04:00:25,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 04:00:25,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 04:00:25,592 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 04:00:25,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:25,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2000517459, now seen corresponding path program 12 times [2023-11-29 04:00:25,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:25,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006722589] [2023-11-29 04:00:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:25,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:25,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:25,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234969543] [2023-11-29 04:00:25,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:00:25,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:25,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:25,601 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:25,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 04:00:26,850 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-11-29 04:00:26,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:26,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:00:26,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:00:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-29 04:00:28,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:00:28,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:28,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006722589] [2023-11-29 04:00:28,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:00:28,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234969543] [2023-11-29 04:00:28,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234969543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:28,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:28,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 04:00:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42953433] [2023-11-29 04:00:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:28,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:00:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:28,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:00:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:00:28,618 INFO L87 Difference]: Start difference. First operand 1284 states and 1499 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 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 04:00:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:00:29,726 INFO L93 Difference]: Finished difference Result 1363 states and 1593 transitions. [2023-11-29 04:00:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:00:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 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 100 [2023-11-29 04:00:29,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:00:29,732 INFO L225 Difference]: With dead ends: 1363 [2023-11-29 04:00:29,732 INFO L226 Difference]: Without dead ends: 1362 [2023-11-29 04:00:29,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:00:29,733 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 50 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:00:29,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 82 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:00:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2023-11-29 04:00:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1283. [2023-11-29 04:00:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1208 states have (on average 1.1332781456953642) internal successors, (1369), 1213 states have internal predecessors, (1369), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 04:00:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1487 transitions. [2023-11-29 04:00:29,887 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1487 transitions. Word has length 100 [2023-11-29 04:00:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:00:29,888 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1487 transitions. [2023-11-29 04:00:29,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 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 04:00:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1487 transitions. [2023-11-29 04:00:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:00:29,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:00:29,889 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 04:00:29,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 04:00:30,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:30,090 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-29 04:00:30,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:30,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1874368774, now seen corresponding path program 5 times [2023-11-29 04:00:30,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:30,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461908929] [2023-11-29 04:00:30,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:30,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:30,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:00:30,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972734865] [2023-11-29 04:00:30,097 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:00:30,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:00:30,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:00:30,098 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:00:30,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86d9a4cf-86ed-4a58-827f-2390eb9f30a5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 04:00:30,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-11-29 04:00:30,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:00:30,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:00:30,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 99 refuted. 31 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:02:09,410 INFO L327 TraceCheckSpWp]: Computing backward predicates...