./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.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_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8da870150b2997ed8b5b2bd7f8bc29b32b30f67a033bb6d7b4e930c9ba2a33c8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:48:49,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:48:49,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:48:49,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:48:49,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:48:49,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:48:49,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:48:49,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:48:49,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:48:49,214 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:48:49,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:48:49,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:48:49,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:48:49,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:48:49,216 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:48:49,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:48:49,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:48:49,218 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:48:49,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:48:49,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:48:49,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:48:49,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:48:49,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:48:49,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:48:49,222 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:48:49,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:48:49,223 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:48:49,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:48:49,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:48:49,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:48:49,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:48:49,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:48:49,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:48:49,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:49,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:48:49,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:48:49,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:48:49,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:48:49,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:48:49,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:48:49,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:48:49,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:48:49,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:48:49,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:48:49,230 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_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8da870150b2997ed8b5b2bd7f8bc29b32b30f67a033bb6d7b4e930c9ba2a33c8 [2023-11-26 10:48:49,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:48:49,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:48:49,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:48:49,576 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:48:49,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:48:49,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.c [2023-11-26 10:48:52,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:48:52,972 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:48:52,973 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.c [2023-11-26 10:48:52,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/data/34b6d8703/8ed21f2580324ca7af77ae5e2c3d8abe/FLAG6634a74cc [2023-11-26 10:48:53,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/data/34b6d8703/8ed21f2580324ca7af77ae5e2c3d8abe [2023-11-26 10:48:53,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:48:53,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:48:53,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:53,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:48:53,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:48:53,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773d7564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53, skipping insertion in model container [2023-11-26 10:48:53,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,048 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:48:53,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:53,255 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:48:53,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:53,288 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:48:53,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53 WrapperNode [2023-11-26 10:48:53,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:53,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:53,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:48:53,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:48:53,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,329 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2023-11-26 10:48:53,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:53,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:48:53,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:48:53,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:48:53,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,374 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:48:53,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:48:53,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:48:53,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:48:53,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:48:53,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (1/1) ... [2023-11-26 10:48:53,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:53,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:53,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:48:53,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:48:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:48:53,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:48:53,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:48:53,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:48:53,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 10:48:53,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 10:48:53,566 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:48:53,568 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:48:54,018 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:48:54,049 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:48:54,050 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:48:54,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:54 BoogieIcfgContainer [2023-11-26 10:48:54,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:48:54,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:48:54,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:48:54,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:48:54,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:48:53" (1/3) ... [2023-11-26 10:48:54,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22916e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:54, skipping insertion in model container [2023-11-26 10:48:54,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:53" (2/3) ... [2023-11-26 10:48:54,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22916e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:54, skipping insertion in model container [2023-11-26 10:48:54,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:54" (3/3) ... [2023-11-26 10:48:54,073 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound20.c [2023-11-26 10:48:54,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:48:54,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-26 10:48:54,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:48:54,201 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;@7a6717db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:48:54,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-11-26 10:48:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 40 states have (on average 1.9) internal successors, (76), 72 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 10:48:54,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:54,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 10:48:54,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:54,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash 4312, now seen corresponding path program 1 times [2023-11-26 10:48:54,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:54,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268031681] [2023-11-26 10:48:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:54,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:54,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:54,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4237466] [2023-11-26 10:48:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:54,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:54,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:54,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:54,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:48:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:54,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:48:54,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:54,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:54,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:54,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268031681] [2023-11-26 10:48:54,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:54,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4237466] [2023-11-26 10:48:54,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4237466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:54,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:54,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:48:54,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948745292] [2023-11-26 10:48:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:54,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:54,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:54,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:54,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:54,487 INFO L87 Difference]: Start difference. First operand has 76 states, 40 states have (on average 1.9) internal successors, (76), 72 states have internal predecessors, (76), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:54,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:54,872 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2023-11-26 10:48:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:54,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-26 10:48:54,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:54,881 INFO L225 Difference]: With dead ends: 147 [2023-11-26 10:48:54,881 INFO L226 Difference]: Without dead ends: 71 [2023-11-26 10:48:54,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:54,888 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 67 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:54,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 33 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:48:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-26 10:48:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-26 10:48:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2023-11-26 10:48:54,929 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 2 [2023-11-26 10:48:54,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:54,929 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2023-11-26 10:48:54,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:54,930 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2023-11-26 10:48:54,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 10:48:54,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:54,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:48:54,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:55,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 10:48:55,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:55,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:55,134 INFO L85 PathProgramCache]: Analyzing trace with hash 128494702, now seen corresponding path program 1 times [2023-11-26 10:48:55,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:55,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82252726] [2023-11-26 10:48:55,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:55,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:55,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562923020] [2023-11-26 10:48:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:55,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:55,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:55,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:48:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:55,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:48:55,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:55,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:55,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:55,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82252726] [2023-11-26 10:48:55,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:55,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562923020] [2023-11-26 10:48:55,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562923020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:55,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:55,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:55,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870586961] [2023-11-26 10:48:55,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:55,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:55,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:55,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:55,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:55,240 INFO L87 Difference]: Start difference. First operand 71 states and 72 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) [2023-11-26 10:48:55,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:55,272 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2023-11-26 10:48:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:55,273 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 [2023-11-26 10:48:55,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:55,275 INFO L225 Difference]: With dead ends: 71 [2023-11-26 10:48:55,275 INFO L226 Difference]: Without dead ends: 70 [2023-11-26 10:48:55,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:55,277 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 70 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:55,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 128 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:48:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-26 10:48:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-26 10:48:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 67 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2023-11-26 10:48:55,288 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 5 [2023-11-26 10:48:55,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:55,288 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2023-11-26 10:48:55,289 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) [2023-11-26 10:48:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2023-11-26 10:48:55,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:48:55,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:55,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:48:55,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:55,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:55,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:55,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash -311631489, now seen corresponding path program 1 times [2023-11-26 10:48:55,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:55,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948340708] [2023-11-26 10:48:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:55,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380688459] [2023-11-26 10:48:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:55,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:55,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:55,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:48:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:55,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:48:55,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:55,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:55,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:55,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948340708] [2023-11-26 10:48:55,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:55,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380688459] [2023-11-26 10:48:55,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380688459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:55,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:55,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:55,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124622475] [2023-11-26 10:48:55,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:55,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:55,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:55,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:55,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:55,593 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:55,627 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2023-11-26 10:48:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:48:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:48:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:55,629 INFO L225 Difference]: With dead ends: 95 [2023-11-26 10:48:55,629 INFO L226 Difference]: Without dead ends: 74 [2023-11-26 10:48:55,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:55,632 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 3 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:55,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 195 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:48:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-26 10:48:55,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-26 10:48:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 43 states have (on average 1.697674418604651) internal successors, (73), 71 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:48:55,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2023-11-26 10:48:55,643 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 6 [2023-11-26 10:48:55,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:55,644 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2023-11-26 10:48:55,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:55,644 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2023-11-26 10:48:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 10:48:55,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:55,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:55,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:55,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:55,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:55,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1169851393, now seen corresponding path program 1 times [2023-11-26 10:48:55,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:55,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791238332] [2023-11-26 10:48:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:55,869 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:55,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318626473] [2023-11-26 10:48:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:55,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:55,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:55,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:55,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:48:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:55,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:48:55,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:55,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:55,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:55,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791238332] [2023-11-26 10:48:55,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:55,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318626473] [2023-11-26 10:48:55,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318626473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:55,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:55,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:55,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321204686] [2023-11-26 10:48:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:55,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:55,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:55,958 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-26 10:48:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:56,179 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2023-11-26 10:48:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:56,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2023-11-26 10:48:56,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:56,189 INFO L225 Difference]: With dead ends: 128 [2023-11-26 10:48:56,189 INFO L226 Difference]: Without dead ends: 123 [2023-11-26 10:48:56,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:56,197 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 147 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:56,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 69 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:48:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-26 10:48:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 91. [2023-11-26 10:48:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 87 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2023-11-26 10:48:56,215 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 8 [2023-11-26 10:48:56,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:56,216 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2023-11-26 10:48:56,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-26 10:48:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2023-11-26 10:48:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 10:48:56,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:56,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:56,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:56,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:56,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:56,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:56,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1905654869, now seen corresponding path program 1 times [2023-11-26 10:48:56,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:56,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701759467] [2023-11-26 10:48:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:56,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:56,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:56,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45859418] [2023-11-26 10:48:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:56,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:56,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:56,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:56,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:48:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:56,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:48:56,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:56,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:56,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:56,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:56,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701759467] [2023-11-26 10:48:56,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:56,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45859418] [2023-11-26 10:48:56,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45859418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:56,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:56,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:56,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594849680] [2023-11-26 10:48:56,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:56,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:56,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:56,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:56,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:56,542 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-26 10:48:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:56,763 INFO L93 Difference]: Finished difference Result 123 states and 127 transitions. [2023-11-26 10:48:56,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:56,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2023-11-26 10:48:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:56,765 INFO L225 Difference]: With dead ends: 123 [2023-11-26 10:48:56,765 INFO L226 Difference]: Without dead ends: 118 [2023-11-26 10:48:56,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:56,766 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 132 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:56,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 71 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:48:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-26 10:48:56,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 92. [2023-11-26 10:48:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.596774193548387) internal successors, (99), 88 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2023-11-26 10:48:56,778 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 9 [2023-11-26 10:48:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:56,779 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2023-11-26 10:48:56,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2023-11-26 10:48:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2023-11-26 10:48:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:48:56,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:56,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:56,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:56,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:56,986 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:56,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1054241149, now seen corresponding path program 1 times [2023-11-26 10:48:56,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:56,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545850332] [2023-11-26 10:48:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:56,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:57,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:57,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698834715] [2023-11-26 10:48:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:57,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:57,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:57,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:57,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:48:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:57,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:48:57,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:57,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:57,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:57,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545850332] [2023-11-26 10:48:57,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698834715] [2023-11-26 10:48:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698834715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:57,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:57,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:48:57,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297199790] [2023-11-26 10:48:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:57,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:57,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:57,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:57,167 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:57,376 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2023-11-26 10:48:57,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:57,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 10:48:57,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:57,379 INFO L225 Difference]: With dead ends: 118 [2023-11-26 10:48:57,379 INFO L226 Difference]: Without dead ends: 114 [2023-11-26 10:48:57,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:57,380 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 36 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:57,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 66 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:48:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-26 10:48:57,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 92. [2023-11-26 10:48:57,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.532258064516129) internal successors, (95), 88 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:57,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2023-11-26 10:48:57,393 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 10 [2023-11-26 10:48:57,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:57,393 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2023-11-26 10:48:57,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:57,394 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2023-11-26 10:48:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 10:48:57,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:57,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:57,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:57,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 10:48:57,605 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:57,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash -586949753, now seen corresponding path program 1 times [2023-11-26 10:48:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:57,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085396762] [2023-11-26 10:48:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:57,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:57,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978327422] [2023-11-26 10:48:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:57,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:57,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:57,617 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:57,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:48:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:57,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:48:57,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:58,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:58,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:58,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085396762] [2023-11-26 10:48:58,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:58,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978327422] [2023-11-26 10:48:58,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978327422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:58,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:48:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357805879] [2023-11-26 10:48:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:58,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:48:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:58,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:48:58,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:48:58,023 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:58,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:58,181 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2023-11-26 10:48:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:58,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-26 10:48:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:58,183 INFO L225 Difference]: With dead ends: 118 [2023-11-26 10:48:58,183 INFO L226 Difference]: Without dead ends: 116 [2023-11-26 10:48:58,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:48:58,184 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 113 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:58,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 78 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:48:58,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-26 10:48:58,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 93. [2023-11-26 10:48:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.507936507936508) internal successors, (95), 89 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2023-11-26 10:48:58,226 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 14 [2023-11-26 10:48:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:58,226 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2023-11-26 10:48:58,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:58,226 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2023-11-26 10:48:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 10:48:58,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:58,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:58,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:58,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 10:48:58,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:58,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:58,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1015573093, now seen corresponding path program 1 times [2023-11-26 10:48:58,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:58,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907570775] [2023-11-26 10:48:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:58,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:58,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:58,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25661655] [2023-11-26 10:48:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:58,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:58,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:58,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:58,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:48:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:58,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:48:58,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:58,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:58,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:58,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907570775] [2023-11-26 10:48:58,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:58,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25661655] [2023-11-26 10:48:58,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25661655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:58,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:58,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:58,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269400607] [2023-11-26 10:48:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:58,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:48:58,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:48:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:58,777 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:58,849 INFO L93 Difference]: Finished difference Result 116 states and 118 transitions. [2023-11-26 10:48:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:48:58,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-26 10:48:58,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:58,852 INFO L225 Difference]: With dead ends: 116 [2023-11-26 10:48:58,852 INFO L226 Difference]: Without dead ends: 114 [2023-11-26 10:48:58,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:48:58,854 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 62 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:58,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 101 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:48:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-26 10:48:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2023-11-26 10:48:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 64 states have (on average 1.484375) internal successors, (95), 90 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2023-11-26 10:48:58,871 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 15 [2023-11-26 10:48:58,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:58,871 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2023-11-26 10:48:58,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2023-11-26 10:48:58,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 10:48:58,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:58,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:58,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:48:59,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:59,078 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:59,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:59,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1417994743, now seen corresponding path program 1 times [2023-11-26 10:48:59,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:59,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300532621] [2023-11-26 10:48:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:59,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:59,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304958275] [2023-11-26 10:48:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:59,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:59,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:59,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:59,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:48:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:59,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:48:59,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:48:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:59,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:48:59,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:59,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300532621] [2023-11-26 10:48:59,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:48:59,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304958275] [2023-11-26 10:48:59,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304958275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:59,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:59,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:48:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887489842] [2023-11-26 10:48:59,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:59,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:48:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:59,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:48:59,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:48:59,453 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:59,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:48:59,600 INFO L93 Difference]: Finished difference Result 110 states and 112 transitions. [2023-11-26 10:48:59,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:48:59,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-26 10:48:59,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:48:59,602 INFO L225 Difference]: With dead ends: 110 [2023-11-26 10:48:59,602 INFO L226 Difference]: Without dead ends: 108 [2023-11-26 10:48:59,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:48:59,603 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 72 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:48:59,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 60 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:48:59,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-26 10:48:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 95. [2023-11-26 10:48:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 65 states have (on average 1.4615384615384615) internal successors, (95), 91 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:48:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 99 transitions. [2023-11-26 10:48:59,612 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 99 transitions. Word has length 16 [2023-11-26 10:48:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:48:59,612 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 99 transitions. [2023-11-26 10:48:59,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 99 transitions. [2023-11-26 10:48:59,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 10:48:59,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:48:59,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:59,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-26 10:48:59,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:59,826 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:48:59,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1008164003, now seen corresponding path program 1 times [2023-11-26 10:48:59,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:59,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043841416] [2023-11-26 10:48:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:59,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:59,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:48:59,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493238014] [2023-11-26 10:48:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:59,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:48:59,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:59,847 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:48:59,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 10:48:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:59,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:48:59,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:00,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:00,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:00,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:00,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043841416] [2023-11-26 10:49:00,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:00,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493238014] [2023-11-26 10:49:00,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493238014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:00,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:00,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:49:00,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078018142] [2023-11-26 10:49:00,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:00,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:49:00,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:49:00,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:49:00,423 INFO L87 Difference]: Start difference. First operand 95 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:00,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:00,755 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2023-11-26 10:49:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:49:00,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2023-11-26 10:49:00,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:00,757 INFO L225 Difference]: With dead ends: 108 [2023-11-26 10:49:00,757 INFO L226 Difference]: Without dead ends: 96 [2023-11-26 10:49:00,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:49:00,758 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:00,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 92 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:49:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-26 10:49:00,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 86. [2023-11-26 10:49:00,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.5) internal successors, (84), 82 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:49:00,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2023-11-26 10:49:00,766 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 17 [2023-11-26 10:49:00,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:00,767 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2023-11-26 10:49:00,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:00,767 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2023-11-26 10:49:00,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 10:49:00,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:00,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:00,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:00,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:49:00,975 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:00,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:00,975 INFO L85 PathProgramCache]: Analyzing trace with hash -185309451, now seen corresponding path program 1 times [2023-11-26 10:49:00,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:00,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647077410] [2023-11-26 10:49:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:00,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:00,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808410218] [2023-11-26 10:49:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:00,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:00,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:00,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:00,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 10:49:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:01,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:49:01,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:01,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647077410] [2023-11-26 10:49:01,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808410218] [2023-11-26 10:49:01,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808410218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:01,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:01,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:01,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773589707] [2023-11-26 10:49:01,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:01,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:01,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:01,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:01,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:01,074 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:01,087 INFO L93 Difference]: Finished difference Result 86 states and 88 transitions. [2023-11-26 10:49:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:01,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-26 10:49:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:01,089 INFO L225 Difference]: With dead ends: 86 [2023-11-26 10:49:01,089 INFO L226 Difference]: Without dead ends: 85 [2023-11-26 10:49:01,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:01,090 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 44 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:01,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 66 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:49:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-26 10:49:01,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-26 10:49:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 81 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:49:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2023-11-26 10:49:01,098 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 24 [2023-11-26 10:49:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:01,099 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2023-11-26 10:49:01,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2023-11-26 10:49:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 10:49:01,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:01,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:01,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:01,308 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:01,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1449625605, now seen corresponding path program 1 times [2023-11-26 10:49:01,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:01,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615194139] [2023-11-26 10:49:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:01,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:01,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:01,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837930988] [2023-11-26 10:49:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:01,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:01,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:01,323 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:01,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 10:49:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:01,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:49:01,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:01,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:01,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615194139] [2023-11-26 10:49:01,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837930988] [2023-11-26 10:49:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837930988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:01,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:01,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521746267] [2023-11-26 10:49:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:01,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:01,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:01,409 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:01,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:01,425 INFO L93 Difference]: Finished difference Result 88 states and 90 transitions. [2023-11-26 10:49:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:01,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-26 10:49:01,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:01,430 INFO L225 Difference]: With dead ends: 88 [2023-11-26 10:49:01,430 INFO L226 Difference]: Without dead ends: 87 [2023-11-26 10:49:01,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:01,431 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:01,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:49:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-26 10:49:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-26 10:49:01,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 83 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:49:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 89 transitions. [2023-11-26 10:49:01,439 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 89 transitions. Word has length 25 [2023-11-26 10:49:01,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:01,440 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 89 transitions. [2023-11-26 10:49:01,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:01,440 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2023-11-26 10:49:01,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 10:49:01,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:01,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:01,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:01,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:01,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:01,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash 99844217, now seen corresponding path program 1 times [2023-11-26 10:49:01,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:01,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201047380] [2023-11-26 10:49:01,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:01,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:01,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:01,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040588786] [2023-11-26 10:49:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:01,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:01,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:01,659 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:01,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 10:49:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:01,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:49:01,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:01,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:01,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201047380] [2023-11-26 10:49:01,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040588786] [2023-11-26 10:49:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040588786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:01,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:01,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:01,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997575782] [2023-11-26 10:49:01,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:01,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:01,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:01,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:01,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:01,987 INFO L87 Difference]: Start difference. First operand 87 states and 89 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:02,562 INFO L93 Difference]: Finished difference Result 93 states and 95 transitions. [2023-11-26 10:49:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:02,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 28 [2023-11-26 10:49:02,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:02,565 INFO L225 Difference]: With dead ends: 93 [2023-11-26 10:49:02,565 INFO L226 Difference]: Without dead ends: 91 [2023-11-26 10:49:02,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:02,566 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:02,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 77 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:49:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-26 10:49:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-26 10:49:02,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.435483870967742) internal successors, (89), 87 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:49:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2023-11-26 10:49:02,572 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 28 [2023-11-26 10:49:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:02,573 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2023-11-26 10:49:02,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2023-11-26 10:49:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 10:49:02,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:02,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:02,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:02,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 10:49:02,782 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:02,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:02,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1461014843, now seen corresponding path program 1 times [2023-11-26 10:49:02,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:02,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921836990] [2023-11-26 10:49:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:02,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:02,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:02,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197231618] [2023-11-26 10:49:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:02,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:02,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:02,795 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:02,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 10:49:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:02,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:49:02,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:02,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:02,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:02,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:02,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921836990] [2023-11-26 10:49:02,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:02,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197231618] [2023-11-26 10:49:02,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197231618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:02,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:02,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:02,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274850085] [2023-11-26 10:49:02,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:02,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:02,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:02,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:02,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:02,977 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 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) [2023-11-26 10:49:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:03,252 INFO L93 Difference]: Finished difference Result 95 states and 97 transitions. [2023-11-26 10:49:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:03,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 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 [2023-11-26 10:49:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:03,253 INFO L225 Difference]: With dead ends: 95 [2023-11-26 10:49:03,254 INFO L226 Difference]: Without dead ends: 94 [2023-11-26 10:49:03,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:03,255 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:03,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:49:03,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-26 10:49:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-11-26 10:49:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 88 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:49:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2023-11-26 10:49:03,263 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 30 [2023-11-26 10:49:03,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:03,263 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2023-11-26 10:49:03,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 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) [2023-11-26 10:49:03,264 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2023-11-26 10:49:03,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 10:49:03,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:03,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:03,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:03,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 10:49:03,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:03,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1953180031, now seen corresponding path program 1 times [2023-11-26 10:49:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:03,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695550034] [2023-11-26 10:49:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:03,488 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:03,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585261642] [2023-11-26 10:49:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:03,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:03,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:03,492 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:03,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 10:49:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:03,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:49:03,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:03,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:03,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695550034] [2023-11-26 10:49:03,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:03,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585261642] [2023-11-26 10:49:03,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585261642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:03,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:03,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:03,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482258614] [2023-11-26 10:49:03,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:03,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:03,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:03,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:03,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:03,656 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:03,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:03,763 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2023-11-26 10:49:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 31 [2023-11-26 10:49:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:03,765 INFO L225 Difference]: With dead ends: 94 [2023-11-26 10:49:03,765 INFO L226 Difference]: Without dead ends: 93 [2023-11-26 10:49:03,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:03,766 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:03,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:49:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-26 10:49:03,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-26 10:49:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.421875) internal successors, (91), 89 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:49:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2023-11-26 10:49:03,774 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 31 [2023-11-26 10:49:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:03,775 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2023-11-26 10:49:03,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:49:03,775 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2023-11-26 10:49:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 10:49:03,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:03,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:03,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:03,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 10:49:03,988 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:03,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1030663466, now seen corresponding path program 1 times [2023-11-26 10:49:03,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:03,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843726541] [2023-11-26 10:49:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:03,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:04,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:04,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102103900] [2023-11-26 10:49:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:04,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:04,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:04,011 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:04,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 10:49:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:04,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:49:04,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:04,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843726541] [2023-11-26 10:49:04,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:49:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102103900] [2023-11-26 10:49:04,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102103900] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:49:04,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:49:04,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-26 10:49:04,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774491388] [2023-11-26 10:49:04,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:49:04,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 10:49:04,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:04,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 10:49:04,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:49:04,261 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 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) [2023-11-26 10:49:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:04,409 INFO L93 Difference]: Finished difference Result 247 states and 251 transitions. [2023-11-26 10:49:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:49:04,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 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 34 [2023-11-26 10:49:04,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:04,412 INFO L225 Difference]: With dead ends: 247 [2023-11-26 10:49:04,413 INFO L226 Difference]: Without dead ends: 226 [2023-11-26 10:49:04,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:49:04,415 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 152 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:04,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 417 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:49:04,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-26 10:49:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 156. [2023-11-26 10:49:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 147 states have internal predecessors, (182), 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) [2023-11-26 10:49:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2023-11-26 10:49:04,431 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 34 [2023-11-26 10:49:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:04,432 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2023-11-26 10:49:04,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 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) [2023-11-26 10:49:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2023-11-26 10:49:04,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 10:49:04,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:04,434 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, 1, 1, 1] [2023-11-26 10:49:04,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:04,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 10:49:04,640 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-26 10:49:04,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:04,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1669852948, now seen corresponding path program 1 times [2023-11-26 10:49:04,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:04,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20822296] [2023-11-26 10:49:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:04,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:04,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:49:04,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168626862] [2023-11-26 10:49:04,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:04,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:04,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:04,650 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:04,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 10:49:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:49:04,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:49:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:49:04,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:49:04,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:49:04,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 32 remaining) [2023-11-26 10:49:04,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 32 remaining) [2023-11-26 10:49:04,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 32 remaining) [2023-11-26 10:49:04,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 32 remaining) [2023-11-26 10:49:04,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 32 remaining) [2023-11-26 10:49:04,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 32 remaining) [2023-11-26 10:49:04,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 32 remaining) [2023-11-26 10:49:04,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 32 remaining) [2023-11-26 10:49:04,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 32 remaining) [2023-11-26 10:49:04,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 32 remaining) [2023-11-26 10:49:04,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 32 remaining) [2023-11-26 10:49:04,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 32 remaining) [2023-11-26 10:49:04,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 32 remaining) [2023-11-26 10:49:04,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 32 remaining) [2023-11-26 10:49:04,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 32 remaining) [2023-11-26 10:49:04,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 32 remaining) [2023-11-26 10:49:04,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 32 remaining) [2023-11-26 10:49:04,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 32 remaining) [2023-11-26 10:49:04,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 32 remaining) [2023-11-26 10:49:04,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 32 remaining) [2023-11-26 10:49:04,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 32 remaining) [2023-11-26 10:49:04,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 32 remaining) [2023-11-26 10:49:04,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 32 remaining) [2023-11-26 10:49:04,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 32 remaining) [2023-11-26 10:49:04,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 32 remaining) [2023-11-26 10:49:04,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 32 remaining) [2023-11-26 10:49:04,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 32 remaining) [2023-11-26 10:49:04,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 32 remaining) [2023-11-26 10:49:04,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 32 remaining) [2023-11-26 10:49:04,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 32 remaining) [2023-11-26 10:49:04,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 32 remaining) [2023-11-26 10:49:04,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 32 remaining) [2023-11-26 10:49:04,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:04,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 10:49:04,959 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:04,962 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:49:04,980 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-26 10:49:04,984 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-26 10:49:04,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:49:04 BoogieIcfgContainer [2023-11-26 10:49:04,994 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:49:04,995 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:49:04,995 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:49:04,995 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:49:04,996 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:54" (3/4) ... [2023-11-26 10:49:04,997 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 10:49:05,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-26 10:49:05,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-26 10:49:05,050 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:49:05,050 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:49:05,051 INFO L158 Benchmark]: Toolchain (without parser) took 12040.99ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 122.2MB in the beginning and 73.0MB in the end (delta: 49.2MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2023-11-26 10:49:05,052 INFO L158 Benchmark]: CDTParser took 1.18ms. Allocated memory is still 113.2MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:05,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.21ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 111.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:49:05,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 165.7MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:05,054 INFO L158 Benchmark]: Boogie Preprocessor took 55.26ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 107.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:49:05,054 INFO L158 Benchmark]: RCFGBuilder took 664.31ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 91.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:49:05,054 INFO L158 Benchmark]: TraceAbstraction took 10933.02ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 90.8MB in the beginning and 76.2MB in the end (delta: 14.6MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:05,055 INFO L158 Benchmark]: Witness Printer took 55.32ms. Allocated memory is still 199.2MB. Free memory was 76.2MB in the beginning and 73.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:49:05,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18ms. Allocated memory is still 113.2MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.21ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 111.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 165.7MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.26ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 107.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 664.31ms. Allocated memory is still 165.7MB. Free memory was 107.5MB in the beginning and 91.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10933.02ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 90.8MB in the beginning and 76.2MB in the end (delta: 14.6MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Witness Printer took 55.32ms. Allocated memory is still 199.2MB. Free memory was 76.2MB in the beginning and 73.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L21] int counter = 0; [L23] int z, a, k; [L24] long long x, y, c, az; [L25] z = __VERIFIER_nondet_int() [L26] a = __VERIFIER_nondet_int() [L27] k = __VERIFIER_nondet_int() [L29] x = a [L30] y = 1 [L31] c = 1 VAL [a=-2147483648, c=1, counter=0, k=2, x=-2147483648, y=1, z=2147483647] [L32] EXPR (long long) a * z [L32] az = (long long) a * z VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=0, k=2, x=-2147483648, y=1, z=2147483647] [L34] EXPR counter++ VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L34] COND TRUE counter++<20 [L35] EXPR z*x VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L35] EXPR z*x - x VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L35] EXPR z*x - x + a VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L35] EXPR az*y VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L35] EXPR z*x - x + a - az*y VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L35] CALL __VERIFIER_assert(z*x - x + a - az*y == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(z*x - x + a - az*y == 0) VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L37] COND FALSE !(!(c < k)) VAL [a=-2147483648, az=-4611686016279904256, c=1, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L40] EXPR c + 1 [L40] c = c + 1 VAL [a=-2147483648, az=-4611686016279904256, c=2, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L41] EXPR x * z VAL [a=-2147483648, az=-4611686016279904256, c=2, counter=1, k=2, x=-2147483648, y=1, z=2147483647] [L41] EXPR x * z + a [L41] x = x * z + a VAL [a=-2147483648, az=-4611686016279904256, c=2, counter=1, k=2, x=-4611686018427387904, y=1, z=2147483647] [L42] EXPR y * z [L42] y = y * z VAL [a=-2147483648, az=-4611686016279904256, c=2, counter=1, k=2, x=-4611686018427387904, y=2147483647, z=2147483647] [L34] EXPR counter++ VAL [a=-2147483648, az=-4611686016279904256, c=2, counter=2, k=2, x=-4611686018427387904, y=2147483647, z=2147483647] [L34] COND TRUE counter++<20 [L35] z*x VAL [a=-2147483648, az=-4611686016279904256, c=2, counter=2, k=2, x=-4611686018427387904, y=2147483647, z=2147483647] - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 32 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 935 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 927 mSDsluCounter, 1706 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 941 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 940 IncrementalHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 765 mSDtfsCounter, 940 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=16, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 218 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 291 ConstructedInterpolants, 23 QuantifiedInterpolants, 2356 SizeOfPredicates, 12 NumberOfNonLiveVariables, 930 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:49:05,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3f8e66-5609-423a-a096-40a6c8af728c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)