./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:26:08,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:26:08,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:26:08,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:26:08,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:26:08,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:26:08,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:26:08,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:26:08,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:26:08,967 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:26:08,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:26:08,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:26:08,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:26:08,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:26:08,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:26:08,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:26:08,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:26:08,972 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:26:08,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:26:08,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:26:08,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:26:08,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:26:08,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:26:08,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:26:08,975 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:26:08,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:26:08,976 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:26:08,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:26:08,977 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:26:08,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:26:08,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:26:08,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:26:08,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:26:08,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:26:08,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:26:08,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:26:08,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:26:08,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:26:08,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:26:08,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:26:08,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:26:08,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:26:08,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:26:08,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:26:08,981 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_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2023-11-29 05:26:09,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:26:09,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:26:09,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:26:09,220 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:26:09,221 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:26:09,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c [2023-11-29 05:26:11,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:26:12,107 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:26:12,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound10.c [2023-11-29 05:26:12,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/data/75f8138f4/c0bfc050569e4409aa0af39d47676f94/FLAG3e800dc42 [2023-11-29 05:26:12,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/data/75f8138f4/c0bfc050569e4409aa0af39d47676f94 [2023-11-29 05:26:12,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:26:12,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:26:12,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:26:12,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:26:12,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:26:12,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6118b94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12, skipping insertion in model container [2023-11-29 05:26:12,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,155 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:26:12,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:26:12,299 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:26:12,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:26:12,325 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:26:12,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12 WrapperNode [2023-11-29 05:26:12,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:26:12,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:26:12,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:26:12,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:26:12,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,360 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2023-11-29 05:26:12,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:26:12,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:26:12,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:26:12,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:26:12,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,387 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:26:12,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:26:12,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:26:12,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:26:12,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:26:12,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (1/1) ... [2023-11-29 05:26:12,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:26:12,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:12,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:26:12,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:26:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:26:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:26:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:26:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:26:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:26:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:26:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:26:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:26:12,528 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:26:12,530 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:26:12,707 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:26:12,732 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:26:12,733 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:26:12,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:26:12 BoogieIcfgContainer [2023-11-29 05:26:12,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:26:12,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:26:12,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:26:12,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:26:12,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:26:12" (1/3) ... [2023-11-29 05:26:12,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e378ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:26:12, skipping insertion in model container [2023-11-29 05:26:12,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:26:12" (2/3) ... [2023-11-29 05:26:12,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e378ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:26:12, skipping insertion in model container [2023-11-29 05:26:12,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:26:12" (3/3) ... [2023-11-29 05:26:12,743 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound10.c [2023-11-29 05:26:12,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:26:12,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-29 05:26:12,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:26:12,808 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;@1cad950a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:26:12,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-29 05:26:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:26:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:26:12,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:12,818 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:12,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:12,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:12,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350132, now seen corresponding path program 1 times [2023-11-29 05:26:12,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:12,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17566388] [2023-11-29 05:26:12,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:12,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:12,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17566388] [2023-11-29 05:26:12,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 05:26:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851199917] [2023-11-29 05:26:12,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:12,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:12,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:12,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:26:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:13,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:26:13,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:13,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:13,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851199917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:13,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:13,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:26:13,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807604481] [2023-11-29 05:26:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:13,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:26:13,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:26:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:26:13,073 INFO L87 Difference]: Start difference. First operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:13,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:13,101 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2023-11-29 05:26:13,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:26:13,104 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 05:26:13,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:13,111 INFO L225 Difference]: With dead ends: 116 [2023-11-29 05:26:13,111 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 05:26:13,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:26:13,117 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:13,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 05:26:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-29 05:26:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:26:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2023-11-29 05:26:13,153 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2023-11-29 05:26:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:13,154 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2023-11-29 05:26:13,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2023-11-29 05:26:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:26:13,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:13,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:13,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:13,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 05:26:13,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:13,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:13,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350117, now seen corresponding path program 1 times [2023-11-29 05:26:13,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:13,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091803021] [2023-11-29 05:26:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:13,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:13,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:13,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116366713] [2023-11-29 05:26:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:13,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:13,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:13,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:26:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:13,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:26:13,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:13,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:13,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:13,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091803021] [2023-11-29 05:26:13,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:13,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116366713] [2023-11-29 05:26:13,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116366713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:13,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:13,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:26:13,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034240054] [2023-11-29 05:26:13,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:13,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:13,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:13,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:13,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:26:13,571 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:13,718 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2023-11-29 05:26:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:26:13,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 05:26:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:13,721 INFO L225 Difference]: With dead ends: 96 [2023-11-29 05:26:13,721 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 05:26:13,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:26:13,723 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 124 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:13,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 120 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 05:26:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 76. [2023-11-29 05:26:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.66) internal successors, (83), 69 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:26:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2023-11-29 05:26:13,736 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 14 [2023-11-29 05:26:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:13,737 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2023-11-29 05:26:13,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2023-11-29 05:26:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 05:26:13,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:13,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:13,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:13,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:13,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:13,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1567877597, now seen corresponding path program 1 times [2023-11-29 05:26:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:13,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476575915] [2023-11-29 05:26:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:13,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:13,952 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:13,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277703525] [2023-11-29 05:26:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:13,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:13,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:13,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:13,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:26:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:13,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:26:13,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:14,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:14,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:14,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476575915] [2023-11-29 05:26:14,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:14,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277703525] [2023-11-29 05:26:14,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277703525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:14,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:14,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:26:14,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959993698] [2023-11-29 05:26:14,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:14,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:26:14,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:14,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:26:14,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:14,029 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:14,082 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2023-11-29 05:26:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-29 05:26:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:14,084 INFO L225 Difference]: With dead ends: 79 [2023-11-29 05:26:14,084 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 05:26:14,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:14,086 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 35 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:14,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 52 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 05:26:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-29 05:26:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 66 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:26:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2023-11-29 05:26:14,097 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 16 [2023-11-29 05:26:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:14,098 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2023-11-29 05:26:14,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:14,098 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2023-11-29 05:26:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 05:26:14,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:14,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:14,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:26:14,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:14,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:14,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1359565303, now seen corresponding path program 1 times [2023-11-29 05:26:14,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:14,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469679709] [2023-11-29 05:26:14,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:14,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:14,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:14,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507801749] [2023-11-29 05:26:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:14,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:14,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:14,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:14,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:26:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:14,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:26:14,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:14,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:14,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:14,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469679709] [2023-11-29 05:26:14,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:14,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507801749] [2023-11-29 05:26:14,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507801749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:14,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:14,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:26:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475433863] [2023-11-29 05:26:14,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:14,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:26:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:14,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:26:14,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:14,413 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:14,483 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2023-11-29 05:26:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:14,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 05:26:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:14,486 INFO L225 Difference]: With dead ends: 119 [2023-11-29 05:26:14,486 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 05:26:14,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:14,488 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:14,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 64 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 05:26:14,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2023-11-29 05:26:14,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 90 states have internal predecessors, (108), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 120 transitions. [2023-11-29 05:26:14,505 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 120 transitions. Word has length 17 [2023-11-29 05:26:14,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:14,505 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 120 transitions. [2023-11-29 05:26:14,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:14,506 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 120 transitions. [2023-11-29 05:26:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 05:26:14,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:14,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:14,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:26:14,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:14,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:14,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:14,712 INFO L85 PathProgramCache]: Analyzing trace with hash -803148513, now seen corresponding path program 1 times [2023-11-29 05:26:14,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:14,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398430494] [2023-11-29 05:26:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:14,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:14,724 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:14,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733553161] [2023-11-29 05:26:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:14,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:14,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:14,726 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:14,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:26:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:14,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:26:14,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:14,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:15,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:15,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398430494] [2023-11-29 05:26:15,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:15,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733553161] [2023-11-29 05:26:15,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733553161] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:15,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:15,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 05:26:15,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808849342] [2023-11-29 05:26:15,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:15,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:26:15,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:15,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:26:15,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:15,036 INFO L87 Difference]: Start difference. First operand 99 states and 120 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:26:15,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:15,305 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2023-11-29 05:26:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:26:15,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-29 05:26:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:15,309 INFO L225 Difference]: With dead ends: 111 [2023-11-29 05:26:15,309 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 05:26:15,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:26:15,311 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 102 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:15,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 89 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:26:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 05:26:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2023-11-29 05:26:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 80 states have (on average 1.3875) internal successors, (111), 94 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2023-11-29 05:26:15,325 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 18 [2023-11-29 05:26:15,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:15,325 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2023-11-29 05:26:15,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:26:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2023-11-29 05:26:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 05:26:15,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:15,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:15,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:26:15,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:15,532 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:15,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:15,532 INFO L85 PathProgramCache]: Analyzing trace with hash 872199929, now seen corresponding path program 1 times [2023-11-29 05:26:15,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:15,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002186658] [2023-11-29 05:26:15,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:15,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:15,542 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:15,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224452795] [2023-11-29 05:26:15,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:15,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:15,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:15,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:15,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:26:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:15,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:26:15,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:15,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:15,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:15,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002186658] [2023-11-29 05:26:15,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:15,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224452795] [2023-11-29 05:26:15,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224452795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:15,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:15,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:26:15,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620993095] [2023-11-29 05:26:15,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:15,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:15,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:15,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:15,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:26:15,792 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:15,951 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-11-29 05:26:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:26:15,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 05:26:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:15,953 INFO L225 Difference]: With dead ends: 104 [2023-11-29 05:26:15,953 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 05:26:15,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:15,954 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 66 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:15,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 86 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:15,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 05:26:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-11-29 05:26:15,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 80 states have (on average 1.375) internal successors, (110), 94 states have internal predecessors, (110), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2023-11-29 05:26:15,967 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 19 [2023-11-29 05:26:15,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:15,967 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2023-11-29 05:26:15,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:26:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2023-11-29 05:26:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 05:26:15,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:15,969 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 05:26:15,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:26:16,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:16,175 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:16,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:16,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2088001174, now seen corresponding path program 1 times [2023-11-29 05:26:16,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:16,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138995058] [2023-11-29 05:26:16,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:16,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:16,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:16,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719879681] [2023-11-29 05:26:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:16,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:16,185 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:16,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:26:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:16,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:26:16,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:16,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:16,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:16,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138995058] [2023-11-29 05:26:16,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:16,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719879681] [2023-11-29 05:26:16,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719879681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:16,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:16,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:26:16,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119715157] [2023-11-29 05:26:16,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:16,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:26:16,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:16,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:26:16,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:16,262 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:16,294 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2023-11-29 05:26:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:16,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-29 05:26:16,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:16,295 INFO L225 Difference]: With dead ends: 103 [2023-11-29 05:26:16,295 INFO L226 Difference]: Without dead ends: 101 [2023-11-29 05:26:16,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:26:16,297 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 59 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:16,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 57 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:16,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-29 05:26:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-29 05:26:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.3375) internal successors, (107), 92 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:16,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 119 transitions. [2023-11-29 05:26:16,308 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 119 transitions. Word has length 32 [2023-11-29 05:26:16,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:16,308 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 119 transitions. [2023-11-29 05:26:16,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 119 transitions. [2023-11-29 05:26:16,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 05:26:16,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:16,310 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] [2023-11-29 05:26:16,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:26:16,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:16,512 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:16,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:16,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1400336030, now seen corresponding path program 1 times [2023-11-29 05:26:16,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:16,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120438427] [2023-11-29 05:26:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:16,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:16,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469332243] [2023-11-29 05:26:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:16,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:16,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:16,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:16,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:26:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:16,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:26:16,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:16,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:16,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120438427] [2023-11-29 05:26:16,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:16,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469332243] [2023-11-29 05:26:16,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469332243] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:16,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:16,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:26:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855714422] [2023-11-29 05:26:16,856 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:16,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:26:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:16,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:26:16,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:16,857 INFO L87 Difference]: Start difference. First operand 101 states and 119 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:16,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:16,958 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2023-11-29 05:26:16,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:26:16,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-11-29 05:26:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:16,960 INFO L225 Difference]: With dead ends: 110 [2023-11-29 05:26:16,960 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 05:26:16,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:26:16,961 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 84 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:16,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 65 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 05:26:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2023-11-29 05:26:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.3125) internal successors, (105), 90 states have internal predecessors, (105), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:26:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 117 transitions. [2023-11-29 05:26:16,979 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 117 transitions. Word has length 34 [2023-11-29 05:26:16,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:16,979 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 117 transitions. [2023-11-29 05:26:16,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 117 transitions. [2023-11-29 05:26:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 05:26:16,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:16,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:16,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:26:17,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 05:26:17,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:17,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:17,185 INFO L85 PathProgramCache]: Analyzing trace with hash -460743922, now seen corresponding path program 1 times [2023-11-29 05:26:17,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:17,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486089596] [2023-11-29 05:26:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:17,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:17,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:17,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736701834] [2023-11-29 05:26:17,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:17,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:17,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:17,194 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:17,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:26:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:17,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:26:17,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:17,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:17,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486089596] [2023-11-29 05:26:17,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736701834] [2023-11-29 05:26:17,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736701834] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:17,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:17,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:26:17,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660081100] [2023-11-29 05:26:17,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:17,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:26:17,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:26:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:17,506 INFO L87 Difference]: Start difference. First operand 99 states and 117 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:17,620 INFO L93 Difference]: Finished difference Result 157 states and 175 transitions. [2023-11-29 05:26:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:26:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-29 05:26:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:17,622 INFO L225 Difference]: With dead ends: 157 [2023-11-29 05:26:17,622 INFO L226 Difference]: Without dead ends: 154 [2023-11-29 05:26:17,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:17,623 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 122 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:17,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 82 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:17,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-29 05:26:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 133. [2023-11-29 05:26:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 112 states have (on average 1.3303571428571428) internal successors, (149), 122 states have internal predecessors, (149), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:26:17,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 165 transitions. [2023-11-29 05:26:17,636 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 165 transitions. Word has length 35 [2023-11-29 05:26:17,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:17,637 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 165 transitions. [2023-11-29 05:26:17,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:17,637 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 165 transitions. [2023-11-29 05:26:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 05:26:17,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:17,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:17,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:26:17,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:17,844 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:17,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:17,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1861508742, now seen corresponding path program 1 times [2023-11-29 05:26:17,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:17,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053681521] [2023-11-29 05:26:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:17,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:17,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:17,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016792673] [2023-11-29 05:26:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:17,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:17,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:17,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:17,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:26:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:17,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:26:17,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:17,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:18,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053681521] [2023-11-29 05:26:18,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016792673] [2023-11-29 05:26:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016792673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:18,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:18,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-11-29 05:26:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10349520] [2023-11-29 05:26:18,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:18,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:26:18,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:26:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:26:18,108 INFO L87 Difference]: Start difference. First operand 133 states and 165 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:26:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:18,349 INFO L93 Difference]: Finished difference Result 141 states and 173 transitions. [2023-11-29 05:26:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:26:18,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2023-11-29 05:26:18,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:18,351 INFO L225 Difference]: With dead ends: 141 [2023-11-29 05:26:18,351 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 05:26:18,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:26:18,353 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 112 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:18,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 93 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:26:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 05:26:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2023-11-29 05:26:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 123 states have internal predecessors, (148), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:26:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 164 transitions. [2023-11-29 05:26:18,364 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 164 transitions. Word has length 37 [2023-11-29 05:26:18,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:18,365 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 164 transitions. [2023-11-29 05:26:18,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:26:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 164 transitions. [2023-11-29 05:26:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 05:26:18,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:18,366 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:18,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:26:18,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:26:18,572 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:18,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:18,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1872196208, now seen corresponding path program 1 times [2023-11-29 05:26:18,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:18,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906298936] [2023-11-29 05:26:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:18,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:18,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:18,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803020284] [2023-11-29 05:26:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:18,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:18,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:18,582 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:18,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:26:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:18,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:26:18,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:18,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:18,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:18,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906298936] [2023-11-29 05:26:18,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:18,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803020284] [2023-11-29 05:26:18,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803020284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:18,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:18,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:26:18,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257418880] [2023-11-29 05:26:18,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:26:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:18,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:26:18,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:18,665 INFO L87 Difference]: Start difference. First operand 134 states and 164 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:18,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:18,729 INFO L93 Difference]: Finished difference Result 136 states and 164 transitions. [2023-11-29 05:26:18,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:18,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-29 05:26:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:18,731 INFO L225 Difference]: With dead ends: 136 [2023-11-29 05:26:18,731 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 05:26:18,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:18,732 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:18,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 38 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 05:26:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2023-11-29 05:26:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 123 states have internal predecessors, (145), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:26:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 161 transitions. [2023-11-29 05:26:18,741 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 161 transitions. Word has length 38 [2023-11-29 05:26:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:18,741 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 161 transitions. [2023-11-29 05:26:18,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 161 transitions. [2023-11-29 05:26:18,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 05:26:18,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:18,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:18,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:18,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 05:26:18,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:18,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash 693347430, now seen corresponding path program 1 times [2023-11-29 05:26:18,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:18,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732207534] [2023-11-29 05:26:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:18,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:18,952 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:18,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083894973] [2023-11-29 05:26:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:18,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:18,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:18,953 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:18,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:26:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:18,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:26:18,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:19,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:26:19,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:19,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732207534] [2023-11-29 05:26:19,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:19,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083894973] [2023-11-29 05:26:19,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083894973] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:19,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:19,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-11-29 05:26:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637122930] [2023-11-29 05:26:19,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:19,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:26:19,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:19,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:26:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:26:19,325 INFO L87 Difference]: Start difference. First operand 134 states and 161 transitions. Second operand has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:26:19,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:19,511 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2023-11-29 05:26:19,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:26:19,511 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-11-29 05:26:19,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:19,513 INFO L225 Difference]: With dead ends: 134 [2023-11-29 05:26:19,513 INFO L226 Difference]: Without dead ends: 131 [2023-11-29 05:26:19,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:26:19,514 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 77 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:19,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 59 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:19,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-29 05:26:19,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2023-11-29 05:26:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 117 states have internal predecessors, (135), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:26:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 151 transitions. [2023-11-29 05:26:19,525 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 151 transitions. Word has length 38 [2023-11-29 05:26:19,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:19,525 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 151 transitions. [2023-11-29 05:26:19,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:26:19,526 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 151 transitions. [2023-11-29 05:26:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 05:26:19,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:19,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:19,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:26:19,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:19,732 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:19,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:19,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2091459640, now seen corresponding path program 1 times [2023-11-29 05:26:19,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:19,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25520189] [2023-11-29 05:26:19,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:19,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:19,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:19,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261652909] [2023-11-29 05:26:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:19,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:19,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:19,742 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:19,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:26:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:19,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:26:19,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:19,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:19,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25520189] [2023-11-29 05:26:19,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261652909] [2023-11-29 05:26:19,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261652909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:19,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:19,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:26:19,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067740877] [2023-11-29 05:26:19,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:19,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:26:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:19,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:26:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:19,827 INFO L87 Difference]: Start difference. First operand 128 states and 151 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:19,881 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2023-11-29 05:26:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2023-11-29 05:26:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:19,882 INFO L225 Difference]: With dead ends: 130 [2023-11-29 05:26:19,882 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 05:26:19,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:26:19,883 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:19,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:19,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 05:26:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2023-11-29 05:26:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 117 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:26:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2023-11-29 05:26:19,893 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 39 [2023-11-29 05:26:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:19,893 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2023-11-29 05:26:19,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:26:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2023-11-29 05:26:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 05:26:19,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:19,894 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:19,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:20,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:20,097 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:20,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:20,097 INFO L85 PathProgramCache]: Analyzing trace with hash 18933906, now seen corresponding path program 1 times [2023-11-29 05:26:20,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:20,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616007873] [2023-11-29 05:26:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:20,104 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:20,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440022493] [2023-11-29 05:26:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:20,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:20,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:20,106 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:20,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:26:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:20,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:26:20,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:20,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:26:20,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:20,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616007873] [2023-11-29 05:26:20,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:20,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440022493] [2023-11-29 05:26:20,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440022493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:20,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:20,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 05:26:20,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087073419] [2023-11-29 05:26:20,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:20,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:26:20,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:20,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:26:20,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:26:20,421 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:26:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:21,083 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2023-11-29 05:26:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:26:21,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2023-11-29 05:26:21,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:21,085 INFO L225 Difference]: With dead ends: 167 [2023-11-29 05:26:21,085 INFO L226 Difference]: Without dead ends: 166 [2023-11-29 05:26:21,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:26:21,086 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 136 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:21,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 72 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:26:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-29 05:26:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 127. [2023-11-29 05:26:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 111 states have (on average 1.1711711711711712) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:26:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2023-11-29 05:26:21,099 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 39 [2023-11-29 05:26:21,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:21,099 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2023-11-29 05:26:21,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:26:21,099 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2023-11-29 05:26:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 05:26:21,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:21,100 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:21,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:26:21,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 05:26:21,304 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:21,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:21,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1223098600, now seen corresponding path program 1 times [2023-11-29 05:26:21,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:21,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903581717] [2023-11-29 05:26:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:21,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:21,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920585183] [2023-11-29 05:26:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:21,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:21,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:21,313 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:21,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:26:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:21,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:26:21,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:26:21,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:26:21,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903581717] [2023-11-29 05:26:21,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:21,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920585183] [2023-11-29 05:26:21,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920585183] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:21,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:21,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:26:21,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740750810] [2023-11-29 05:26:21,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:21,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:26:21,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:21,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:26:21,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:26:21,432 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:26:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:21,514 INFO L93 Difference]: Finished difference Result 293 states and 345 transitions. [2023-11-29 05:26:21,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:26:21,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 47 [2023-11-29 05:26:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:21,516 INFO L225 Difference]: With dead ends: 293 [2023-11-29 05:26:21,517 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 05:26:21,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:26:21,518 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 68 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:21,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 87 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:21,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 05:26:21,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 254. [2023-11-29 05:26:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 230 states have (on average 1.1565217391304348) internal successors, (266), 234 states have internal predecessors, (266), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 05:26:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 300 transitions. [2023-11-29 05:26:21,537 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 300 transitions. Word has length 47 [2023-11-29 05:26:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:21,537 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 300 transitions. [2023-11-29 05:26:21,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:26:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 300 transitions. [2023-11-29 05:26:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:26:21,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:21,539 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:21,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 05:26:21,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:21,739 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:21,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1565427033, now seen corresponding path program 2 times [2023-11-29 05:26:21,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:21,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718639838] [2023-11-29 05:26:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:21,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:21,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692112568] [2023-11-29 05:26:21,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:21,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:21,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:21,748 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:21,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:26:21,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:21,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:21,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:26:21,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:26:21,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:22,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718639838] [2023-11-29 05:26:22,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692112568] [2023-11-29 05:26:22,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692112568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:22,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:22,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:26:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701834280] [2023-11-29 05:26:22,021 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:22,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:26:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:22,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:26:22,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:26:22,022 INFO L87 Difference]: Start difference. First operand 254 states and 300 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:26:22,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:22,155 INFO L93 Difference]: Finished difference Result 423 states and 500 transitions. [2023-11-29 05:26:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:26:22,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2023-11-29 05:26:22,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:22,158 INFO L225 Difference]: With dead ends: 423 [2023-11-29 05:26:22,158 INFO L226 Difference]: Without dead ends: 418 [2023-11-29 05:26:22,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:22,159 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:22,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 117 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-11-29 05:26:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 279. [2023-11-29 05:26:22,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 254 states have (on average 1.1496062992125984) internal successors, (292), 258 states have internal predecessors, (292), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:26:22,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 328 transitions. [2023-11-29 05:26:22,188 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 328 transitions. Word has length 55 [2023-11-29 05:26:22,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:22,188 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 328 transitions. [2023-11-29 05:26:22,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:26:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 328 transitions. [2023-11-29 05:26:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:26:22,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:22,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:22,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 05:26:22,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:26:22,392 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:22,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:22,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1638756971, now seen corresponding path program 2 times [2023-11-29 05:26:22,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660736613] [2023-11-29 05:26:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:22,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:22,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:22,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617220502] [2023-11-29 05:26:22,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:22,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:22,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:22,399 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:22,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:26:22,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:22,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:22,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:26:22,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 05:26:22,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 05:26:22,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:22,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660736613] [2023-11-29 05:26:22,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:22,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617220502] [2023-11-29 05:26:22,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617220502] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:22,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:22,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 15 [2023-11-29 05:26:22,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579114642] [2023-11-29 05:26:22,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:22,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:26:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:22,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:26:22,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:26:22,831 INFO L87 Difference]: Start difference. First operand 279 states and 328 transitions. Second operand has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:26:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:23,144 INFO L93 Difference]: Finished difference Result 339 states and 397 transitions. [2023-11-29 05:26:23,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:26:23,145 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 57 [2023-11-29 05:26:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:23,147 INFO L225 Difference]: With dead ends: 339 [2023-11-29 05:26:23,147 INFO L226 Difference]: Without dead ends: 338 [2023-11-29 05:26:23,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:26:23,149 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 111 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:23,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 96 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:26:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-29 05:26:23,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 333. [2023-11-29 05:26:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 304 states have (on average 1.138157894736842) internal successors, (346), 308 states have internal predecessors, (346), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 05:26:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 390 transitions. [2023-11-29 05:26:23,182 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 390 transitions. Word has length 57 [2023-11-29 05:26:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:23,183 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 390 transitions. [2023-11-29 05:26:23,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 15 states have internal predecessors, (65), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:26:23,183 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 390 transitions. [2023-11-29 05:26:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:26:23,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:23,184 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:23,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 05:26:23,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:23,385 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:23,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:23,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1117961183, now seen corresponding path program 1 times [2023-11-29 05:26:23,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:23,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687808955] [2023-11-29 05:26:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:23,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:23,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487807186] [2023-11-29 05:26:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:23,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:23,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:23,394 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:23,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:26:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:23,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:26:23,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:26:23,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:26:23,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:23,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687808955] [2023-11-29 05:26:23,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:23,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487807186] [2023-11-29 05:26:23,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487807186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:26:23,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:26:23,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:26:23,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942297099] [2023-11-29 05:26:23,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:26:23,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:26:23,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:23,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:26:23,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:26:23,513 INFO L87 Difference]: Start difference. First operand 333 states and 390 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:26:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:23,588 INFO L93 Difference]: Finished difference Result 541 states and 633 transitions. [2023-11-29 05:26:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:26:23,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2023-11-29 05:26:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:23,591 INFO L225 Difference]: With dead ends: 541 [2023-11-29 05:26:23,591 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 05:26:23,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:26:23,593 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:23,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 87 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:23,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 05:26:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 304. [2023-11-29 05:26:23,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 277 states have (on average 1.1263537906137184) internal successors, (312), 281 states have internal predecessors, (312), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:26:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 352 transitions. [2023-11-29 05:26:23,621 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 352 transitions. Word has length 57 [2023-11-29 05:26:23,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:23,621 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 352 transitions. [2023-11-29 05:26:23,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:26:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 352 transitions. [2023-11-29 05:26:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 05:26:23,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:23,622 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:23,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 05:26:23,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:23,824 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:23,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:23,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1266525174, now seen corresponding path program 1 times [2023-11-29 05:26:23,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:23,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720501129] [2023-11-29 05:26:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:23,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:23,831 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:23,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501643664] [2023-11-29 05:26:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:23,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:23,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:23,832 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:23,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 05:26:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:23,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:26:23,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 05:26:23,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:24,041 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 05:26:24,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:24,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720501129] [2023-11-29 05:26:24,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:24,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501643664] [2023-11-29 05:26:24,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501643664] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:24,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:24,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 05:26:24,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479494989] [2023-11-29 05:26:24,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:24,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:24,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:24,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:26:24,043 INFO L87 Difference]: Start difference. First operand 304 states and 352 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:26:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:24,190 INFO L93 Difference]: Finished difference Result 332 states and 376 transitions. [2023-11-29 05:26:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:26:24,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 75 [2023-11-29 05:26:24,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:24,193 INFO L225 Difference]: With dead ends: 332 [2023-11-29 05:26:24,193 INFO L226 Difference]: Without dead ends: 308 [2023-11-29 05:26:24,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:24,194 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 43 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:24,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 178 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-29 05:26:24,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 304. [2023-11-29 05:26:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 277 states have (on average 1.1191335740072201) internal successors, (310), 281 states have internal predecessors, (310), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:26:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 350 transitions. [2023-11-29 05:26:24,223 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 350 transitions. Word has length 75 [2023-11-29 05:26:24,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:24,223 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 350 transitions. [2023-11-29 05:26:24,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:26:24,224 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 350 transitions. [2023-11-29 05:26:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 05:26:24,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:24,225 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:24,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:24,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:24,426 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:24,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1935764544, now seen corresponding path program 3 times [2023-11-29 05:26:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112645605] [2023-11-29 05:26:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:24,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:24,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307796461] [2023-11-29 05:26:24,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:26:24,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:24,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:24,437 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:24,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 05:26:24,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:26:24,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:24,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:26:24,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 38 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 05:26:24,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:25,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:25,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112645605] [2023-11-29 05:26:25,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:25,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307796461] [2023-11-29 05:26:25,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307796461] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:25,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:25,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 05:26:25,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698292046] [2023-11-29 05:26:25,838 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:25,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:26:25,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:25,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:26:25,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:26:25,839 INFO L87 Difference]: Start difference. First operand 304 states and 350 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:26:25,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:25,916 INFO L93 Difference]: Finished difference Result 307 states and 350 transitions. [2023-11-29 05:26:25,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:26:25,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 75 [2023-11-29 05:26:25,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:25,918 INFO L225 Difference]: With dead ends: 307 [2023-11-29 05:26:25,918 INFO L226 Difference]: Without dead ends: 306 [2023-11-29 05:26:25,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:25,919 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:25,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 83 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:26:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-11-29 05:26:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 304. [2023-11-29 05:26:25,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 277 states have (on average 1.1155234657039712) internal successors, (309), 281 states have internal predecessors, (309), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:26:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 349 transitions. [2023-11-29 05:26:25,940 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 349 transitions. Word has length 75 [2023-11-29 05:26:25,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:25,941 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 349 transitions. [2023-11-29 05:26:25,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:26:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 349 transitions. [2023-11-29 05:26:25,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 05:26:25,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:25,942 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:25,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 05:26:26,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:26,142 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:26,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:26,143 INFO L85 PathProgramCache]: Analyzing trace with hash -385233554, now seen corresponding path program 2 times [2023-11-29 05:26:26,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670110078] [2023-11-29 05:26:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:26,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:26,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:26,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923244149] [2023-11-29 05:26:26,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:26,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:26,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:26,152 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:26,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 05:26:26,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:26,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:26,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:26:26,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 05:26:26,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 05:26:26,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:26,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670110078] [2023-11-29 05:26:26,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:26,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923244149] [2023-11-29 05:26:26,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923244149] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:26,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:26,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 05:26:26,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136944698] [2023-11-29 05:26:26,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:26,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:26:26,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:26:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:26:26,509 INFO L87 Difference]: Start difference. First operand 304 states and 349 transitions. Second operand has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 05:26:26,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:26,999 INFO L93 Difference]: Finished difference Result 681 states and 768 transitions. [2023-11-29 05:26:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 05:26:27,000 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 77 [2023-11-29 05:26:27,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:27,004 INFO L225 Difference]: With dead ends: 681 [2023-11-29 05:26:27,004 INFO L226 Difference]: Without dead ends: 680 [2023-11-29 05:26:27,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2023-11-29 05:26:27,005 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 155 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:27,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 112 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:26:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-29 05:26:27,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 583. [2023-11-29 05:26:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 542 states have (on average 1.088560885608856) internal successors, (590), 546 states have internal predecessors, (590), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 05:26:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 658 transitions. [2023-11-29 05:26:27,063 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 658 transitions. Word has length 77 [2023-11-29 05:26:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:27,064 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 658 transitions. [2023-11-29 05:26:27,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 15 states have internal predecessors, (114), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 05:26:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 658 transitions. [2023-11-29 05:26:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 05:26:27,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:27,065 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:27,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 05:26:27,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:27,266 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:27,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:27,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1602868179, now seen corresponding path program 1 times [2023-11-29 05:26:27,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:27,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844887925] [2023-11-29 05:26:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:27,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:27,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:27,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946149949] [2023-11-29 05:26:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:27,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:27,277 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:27,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 05:26:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:27,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:26:27,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:26:27,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:26:27,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:27,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844887925] [2023-11-29 05:26:27,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:27,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946149949] [2023-11-29 05:26:27,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946149949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:27,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:27,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:26:27,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329826185] [2023-11-29 05:26:27,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:27,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:26:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:26:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:27,525 INFO L87 Difference]: Start difference. First operand 583 states and 658 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 05:26:28,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:28,132 INFO L93 Difference]: Finished difference Result 1177 states and 1372 transitions. [2023-11-29 05:26:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:26:28,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 90 [2023-11-29 05:26:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:28,139 INFO L225 Difference]: With dead ends: 1177 [2023-11-29 05:26:28,139 INFO L226 Difference]: Without dead ends: 1176 [2023-11-29 05:26:28,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:28,140 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 157 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:28,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 173 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:26:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-11-29 05:26:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1137. [2023-11-29 05:26:28,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1061 states have (on average 1.1413760603204524) internal successors, (1211), 1065 states have internal predecessors, (1211), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-29 05:26:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1349 transitions. [2023-11-29 05:26:28,250 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1349 transitions. Word has length 90 [2023-11-29 05:26:28,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:28,251 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1349 transitions. [2023-11-29 05:26:28,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 05:26:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1349 transitions. [2023-11-29 05:26:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 05:26:28,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:28,258 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:28,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 05:26:28,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:28,458 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:28,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:28,459 INFO L85 PathProgramCache]: Analyzing trace with hash -206256443, now seen corresponding path program 2 times [2023-11-29 05:26:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558022151] [2023-11-29 05:26:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:28,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:28,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:28,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494276084] [2023-11-29 05:26:28,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:28,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:28,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:28,468 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:28,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:26:28,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:28,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:28,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:26:28,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:26:28,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:28,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:28,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558022151] [2023-11-29 05:26:28,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:28,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494276084] [2023-11-29 05:26:28,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494276084] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:28,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:28,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:26:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247836045] [2023-11-29 05:26:28,782 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:28,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:28,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:26:28,783 INFO L87 Difference]: Start difference. First operand 1137 states and 1349 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 05:26:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:28,960 INFO L93 Difference]: Finished difference Result 1267 states and 1502 transitions. [2023-11-29 05:26:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:26:28,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 95 [2023-11-29 05:26:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:28,966 INFO L225 Difference]: With dead ends: 1267 [2023-11-29 05:26:28,966 INFO L226 Difference]: Without dead ends: 1263 [2023-11-29 05:26:28,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:28,967 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:28,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 162 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-29 05:26:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1257. [2023-11-29 05:26:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1174 states have (on average 1.1337308347529813) internal successors, (1331), 1178 states have internal predecessors, (1331), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-29 05:26:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1483 transitions. [2023-11-29 05:26:29,080 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1483 transitions. Word has length 95 [2023-11-29 05:26:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:29,080 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1483 transitions. [2023-11-29 05:26:29,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 05:26:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1483 transitions. [2023-11-29 05:26:29,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 05:26:29,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:29,083 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:29,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 05:26:29,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 05:26:29,284 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:29,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:29,284 INFO L85 PathProgramCache]: Analyzing trace with hash -940589179, now seen corresponding path program 2 times [2023-11-29 05:26:29,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:29,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337137519] [2023-11-29 05:26:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:29,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:29,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946655817] [2023-11-29 05:26:29,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:29,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:29,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:29,294 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:29,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 05:26:29,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:29,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:29,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:26:29,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 05:26:29,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 05:26:29,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:29,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337137519] [2023-11-29 05:26:29,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:29,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946655817] [2023-11-29 05:26:29,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946655817] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:29,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:29,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:26:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358126711] [2023-11-29 05:26:29,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:29,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:26:29,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:26:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:26:29,558 INFO L87 Difference]: Start difference. First operand 1257 states and 1483 transitions. Second operand has 12 states, 11 states have (on average 13.545454545454545) internal successors, (149), 12 states have internal predecessors, (149), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:26:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:29,841 INFO L93 Difference]: Finished difference Result 2490 states and 3022 transitions. [2023-11-29 05:26:29,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:26:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.545454545454545) internal successors, (149), 12 states have internal predecessors, (149), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 107 [2023-11-29 05:26:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:29,850 INFO L225 Difference]: With dead ends: 2490 [2023-11-29 05:26:29,851 INFO L226 Difference]: Without dead ends: 2489 [2023-11-29 05:26:29,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:26:29,851 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 185 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:29,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 181 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:29,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2023-11-29 05:26:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2286. [2023-11-29 05:26:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 2138 states have (on average 1.1693171188026192) internal successors, (2500), 2142 states have internal predecessors, (2500), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 05:26:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 2782 transitions. [2023-11-29 05:26:30,000 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 2782 transitions. Word has length 107 [2023-11-29 05:26:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:30,001 INFO L495 AbstractCegarLoop]: Abstraction has 2286 states and 2782 transitions. [2023-11-29 05:26:30,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.545454545454545) internal successors, (149), 12 states have internal predecessors, (149), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:26:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 2782 transitions. [2023-11-29 05:26:30,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 05:26:30,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:30,003 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:30,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 05:26:30,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 05:26:30,203 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:30,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:30,204 INFO L85 PathProgramCache]: Analyzing trace with hash -321833708, now seen corresponding path program 3 times [2023-11-29 05:26:30,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:30,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754288936] [2023-11-29 05:26:30,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:30,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:30,213 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:30,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954716151] [2023-11-29 05:26:30,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:26:30,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:30,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:30,215 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:30,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 05:26:30,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:26:30,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:30,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:26:30,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:30,457 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:26:30,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:30,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:30,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754288936] [2023-11-29 05:26:30,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:30,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954716151] [2023-11-29 05:26:30,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954716151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:30,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:30,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:26:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121721096] [2023-11-29 05:26:30,605 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:30,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:26:30,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:30,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:26:30,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:30,606 INFO L87 Difference]: Start difference. First operand 2286 states and 2782 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 05:26:30,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:30,899 INFO L93 Difference]: Finished difference Result 3666 states and 4543 transitions. [2023-11-29 05:26:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:26:30,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 115 [2023-11-29 05:26:30,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:30,909 INFO L225 Difference]: With dead ends: 3666 [2023-11-29 05:26:30,909 INFO L226 Difference]: Without dead ends: 2258 [2023-11-29 05:26:30,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:26:30,913 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 61 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:30,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 184 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:26:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-11-29 05:26:31,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2118. [2023-11-29 05:26:31,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2118 states, 1980 states have (on average 1.1737373737373737) internal successors, (2324), 1984 states have internal predecessors, (2324), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2023-11-29 05:26:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 2586 transitions. [2023-11-29 05:26:31,041 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 2586 transitions. Word has length 115 [2023-11-29 05:26:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:31,041 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 2586 transitions. [2023-11-29 05:26:31,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 05:26:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 2586 transitions. [2023-11-29 05:26:31,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 05:26:31,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:31,044 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:31,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 05:26:31,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:26:31,244 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:31,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash -897409821, now seen corresponding path program 4 times [2023-11-29 05:26:31,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:31,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069200391] [2023-11-29 05:26:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:31,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:31,274 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:31,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719589814] [2023-11-29 05:26:31,275 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:26:31,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:31,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:31,276 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:31,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 05:26:31,349 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:26:31,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:31,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 05:26:31,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 9 proven. 220 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 05:26:32,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:32,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:32,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069200391] [2023-11-29 05:26:32,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:32,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719589814] [2023-11-29 05:26:32,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719589814] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:32,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:32,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 05:26:32,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763399953] [2023-11-29 05:26:32,248 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:32,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:26:32,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:32,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:26:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:26:32,250 INFO L87 Difference]: Start difference. First operand 2118 states and 2586 transitions. Second operand has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:32,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:32,994 INFO L93 Difference]: Finished difference Result 2573 states and 3139 transitions. [2023-11-29 05:26:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:26:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) Word has length 135 [2023-11-29 05:26:32,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:33,003 INFO L225 Difference]: With dead ends: 2573 [2023-11-29 05:26:33,003 INFO L226 Difference]: Without dead ends: 2569 [2023-11-29 05:26:33,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:26:33,004 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:33,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 211 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:26:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-11-29 05:26:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2236. [2023-11-29 05:26:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2090 states have (on average 1.1717703349282296) internal successors, (2449), 2094 states have internal predecessors, (2449), 139 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 05:26:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2727 transitions. [2023-11-29 05:26:33,142 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2727 transitions. Word has length 135 [2023-11-29 05:26:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:33,142 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 2727 transitions. [2023-11-29 05:26:33,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2727 transitions. [2023-11-29 05:26:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 05:26:33,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:33,145 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:33,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:33,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 05:26:33,346 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:33,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:33,346 INFO L85 PathProgramCache]: Analyzing trace with hash -62504019, now seen corresponding path program 5 times [2023-11-29 05:26:33,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:33,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888349702] [2023-11-29 05:26:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:33,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:33,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:33,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668062961] [2023-11-29 05:26:33,353 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:26:33,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:33,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:33,354 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:33,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 05:26:33,410 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 05:26:33,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:33,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:26:33,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:33,764 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 12 proven. 198 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 05:26:33,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:33,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:33,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888349702] [2023-11-29 05:26:33,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:33,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668062961] [2023-11-29 05:26:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668062961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:33,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:33,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 05:26:33,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653610365] [2023-11-29 05:26:33,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:33,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:26:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:33,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:26:33,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:26:33,894 INFO L87 Difference]: Start difference. First operand 2236 states and 2727 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:34,315 INFO L93 Difference]: Finished difference Result 2555 states and 3118 transitions. [2023-11-29 05:26:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:26:34,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 135 [2023-11-29 05:26:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:34,326 INFO L225 Difference]: With dead ends: 2555 [2023-11-29 05:26:34,326 INFO L226 Difference]: Without dead ends: 2551 [2023-11-29 05:26:34,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:26:34,327 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 31 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:34,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 288 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:26:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2023-11-29 05:26:34,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2545. [2023-11-29 05:26:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2379 states have (on average 1.1664564943253468) internal successors, (2775), 2383 states have internal predecessors, (2775), 159 states have call successors, (159), 2 states have call predecessors, (159), 2 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2023-11-29 05:26:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 3093 transitions. [2023-11-29 05:26:34,535 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 3093 transitions. Word has length 135 [2023-11-29 05:26:34,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:34,535 INFO L495 AbstractCegarLoop]: Abstraction has 2545 states and 3093 transitions. [2023-11-29 05:26:34,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 3093 transitions. [2023-11-29 05:26:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 05:26:34,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:34,539 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:34,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:34,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 05:26:34,739 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:34,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1350152142, now seen corresponding path program 6 times [2023-11-29 05:26:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:34,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449307602] [2023-11-29 05:26:34,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:34,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:34,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:34,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750854889] [2023-11-29 05:26:34,749 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:26:34,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:34,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:34,750 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:34,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 05:26:34,932 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-11-29 05:26:34,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:34,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:26:34,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 05:26:35,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 05:26:35,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:35,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449307602] [2023-11-29 05:26:35,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:35,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750854889] [2023-11-29 05:26:35,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750854889] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:35,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:35,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2023-11-29 05:26:35,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713354117] [2023-11-29 05:26:35,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:35,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:26:35,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:35,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:26:35,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:26:35,251 INFO L87 Difference]: Start difference. First operand 2545 states and 3093 transitions. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:26:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:35,947 INFO L93 Difference]: Finished difference Result 5407 states and 6700 transitions. [2023-11-29 05:26:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:26:35,948 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 155 [2023-11-29 05:26:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:35,961 INFO L225 Difference]: With dead ends: 5407 [2023-11-29 05:26:35,961 INFO L226 Difference]: Without dead ends: 3994 [2023-11-29 05:26:35,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 292 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:26:35,964 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 91 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:35,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 419 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:26:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2023-11-29 05:26:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 2931. [2023-11-29 05:26:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2931 states, 2741 states have (on average 1.1597956950018242) internal successors, (3179), 2745 states have internal predecessors, (3179), 183 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2023-11-29 05:26:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 3545 transitions. [2023-11-29 05:26:36,145 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 3545 transitions. Word has length 155 [2023-11-29 05:26:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:36,145 INFO L495 AbstractCegarLoop]: Abstraction has 2931 states and 3545 transitions. [2023-11-29 05:26:36,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:26:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 3545 transitions. [2023-11-29 05:26:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 05:26:36,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:36,147 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:36,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:36,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 05:26:36,348 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:36,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash -515246340, now seen corresponding path program 7 times [2023-11-29 05:26:36,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:36,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916083300] [2023-11-29 05:26:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:36,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:36,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656437614] [2023-11-29 05:26:36,357 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:26:36,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:36,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:36,359 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:36,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 05:26:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:36,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:26:36,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 235 proven. 92 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 05:26:36,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 195 proven. 92 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-29 05:26:36,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:36,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916083300] [2023-11-29 05:26:36,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:36,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656437614] [2023-11-29 05:26:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656437614] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:36,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:36,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-11-29 05:26:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293618439] [2023-11-29 05:26:36,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:36,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:26:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:26:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:26:36,643 INFO L87 Difference]: Start difference. First operand 2931 states and 3545 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2023-11-29 05:26:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:37,280 INFO L93 Difference]: Finished difference Result 5506 states and 6795 transitions. [2023-11-29 05:26:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:26:37,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 155 [2023-11-29 05:26:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:37,301 INFO L225 Difference]: With dead ends: 5506 [2023-11-29 05:26:37,301 INFO L226 Difference]: Without dead ends: 3978 [2023-11-29 05:26:37,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 296 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:26:37,306 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 78 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:37,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 272 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:26:37,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3978 states. [2023-11-29 05:26:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3978 to 3100. [2023-11-29 05:26:37,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3100 states, 2899 states have (on average 1.1576405657123146) internal successors, (3356), 2903 states have internal predecessors, (3356), 194 states have call successors, (194), 2 states have call predecessors, (194), 2 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2023-11-29 05:26:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3100 states to 3100 states and 3744 transitions. [2023-11-29 05:26:37,505 INFO L78 Accepts]: Start accepts. Automaton has 3100 states and 3744 transitions. Word has length 155 [2023-11-29 05:26:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:37,506 INFO L495 AbstractCegarLoop]: Abstraction has 3100 states and 3744 transitions. [2023-11-29 05:26:37,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2023-11-29 05:26:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3100 states and 3744 transitions. [2023-11-29 05:26:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 05:26:37,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:37,509 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:37,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 05:26:37,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 05:26:37,710 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:37,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:37,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1886262102, now seen corresponding path program 3 times [2023-11-29 05:26:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:37,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034318900] [2023-11-29 05:26:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:37,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:37,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:37,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020119143] [2023-11-29 05:26:37,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:26:37,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:37,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:37,723 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:37,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 05:26:37,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 05:26:37,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:37,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:26:37,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 18 proven. 347 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 05:26:38,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 18 proven. 347 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 05:26:38,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:38,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034318900] [2023-11-29 05:26:38,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:38,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020119143] [2023-11-29 05:26:38,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020119143] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:38,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:38,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-29 05:26:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585488575] [2023-11-29 05:26:38,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:38,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 05:26:38,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:38,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 05:26:38,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:26:38,296 INFO L87 Difference]: Start difference. First operand 3100 states and 3744 transitions. Second operand has 23 states, 22 states have (on average 10.636363636363637) internal successors, (234), 23 states have internal predecessors, (234), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 05:26:39,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:39,701 INFO L93 Difference]: Finished difference Result 6751 states and 7989 transitions. [2023-11-29 05:26:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-11-29 05:26:39,702 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.636363636363637) internal successors, (234), 23 states have internal predecessors, (234), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 157 [2023-11-29 05:26:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:39,723 INFO L225 Difference]: With dead ends: 6751 [2023-11-29 05:26:39,723 INFO L226 Difference]: Without dead ends: 6750 [2023-11-29 05:26:39,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1051, Invalid=2371, Unknown=0, NotChecked=0, Total=3422 [2023-11-29 05:26:39,725 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 357 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:39,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 161 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:26:39,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2023-11-29 05:26:40,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 6554. [2023-11-29 05:26:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6554 states, 6166 states have (on average 1.1070385987674343) internal successors, (6826), 6170 states have internal predecessors, (6826), 381 states have call successors, (381), 2 states have call predecessors, (381), 2 states have return successors, (381), 381 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-29 05:26:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6554 states to 6554 states and 7588 transitions. [2023-11-29 05:26:40,117 INFO L78 Accepts]: Start accepts. Automaton has 6554 states and 7588 transitions. Word has length 157 [2023-11-29 05:26:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:40,117 INFO L495 AbstractCegarLoop]: Abstraction has 6554 states and 7588 transitions. [2023-11-29 05:26:40,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.636363636363637) internal successors, (234), 23 states have internal predecessors, (234), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 05:26:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 6554 states and 7588 transitions. [2023-11-29 05:26:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 05:26:40,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:40,120 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:40,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 05:26:40,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:40,320 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:40,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:40,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1131873023, now seen corresponding path program 8 times [2023-11-29 05:26:40,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:40,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993573956] [2023-11-29 05:26:40,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:40,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:40,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521497692] [2023-11-29 05:26:40,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:40,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:40,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:40,331 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:40,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 05:26:40,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:40,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:40,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:26:40,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-29 05:26:40,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993573956] [2023-11-29 05:26:40,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521497692] [2023-11-29 05:26:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521497692] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:40,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:40,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:26:40,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176731379] [2023-11-29 05:26:40,872 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:40,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:26:40,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:26:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:26:40,873 INFO L87 Difference]: Start difference. First operand 6554 states and 7588 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:41,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:41,621 INFO L93 Difference]: Finished difference Result 7044 states and 8174 transitions. [2023-11-29 05:26:41,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:26:41,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 175 [2023-11-29 05:26:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:41,633 INFO L225 Difference]: With dead ends: 7044 [2023-11-29 05:26:41,633 INFO L226 Difference]: Without dead ends: 7040 [2023-11-29 05:26:41,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:26:41,635 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 32 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:41,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 283 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:26:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7040 states. [2023-11-29 05:26:42,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7040 to 6439. [2023-11-29 05:26:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6439 states, 6057 states have (on average 1.106323262341093) internal successors, (6701), 6061 states have internal predecessors, (6701), 375 states have call successors, (375), 2 states have call predecessors, (375), 2 states have return successors, (375), 375 states have call predecessors, (375), 375 states have call successors, (375) [2023-11-29 05:26:42,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6439 states to 6439 states and 7451 transitions. [2023-11-29 05:26:42,025 INFO L78 Accepts]: Start accepts. Automaton has 6439 states and 7451 transitions. Word has length 175 [2023-11-29 05:26:42,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:42,025 INFO L495 AbstractCegarLoop]: Abstraction has 6439 states and 7451 transitions. [2023-11-29 05:26:42,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:42,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6439 states and 7451 transitions. [2023-11-29 05:26:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 05:26:42,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:42,028 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:42,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 05:26:42,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:42,228 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:42,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:42,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1708308629, now seen corresponding path program 9 times [2023-11-29 05:26:42,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:42,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096927583] [2023-11-29 05:26:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:42,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:42,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:42,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481699088] [2023-11-29 05:26:42,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:26:42,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:42,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:42,239 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:42,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 05:26:42,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 05:26:42,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:42,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:26:42,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 372 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-29 05:26:42,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:42,866 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 372 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-29 05:26:42,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096927583] [2023-11-29 05:26:42,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481699088] [2023-11-29 05:26:42,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481699088] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:42,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:42,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 05:26:42,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101924441] [2023-11-29 05:26:42,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:42,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:26:42,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:42,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:26:42,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:26:42,869 INFO L87 Difference]: Start difference. First operand 6439 states and 7451 transitions. Second operand has 16 states, 15 states have (on average 13.0) internal successors, (195), 16 states have internal predecessors, (195), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:26:45,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:45,274 INFO L93 Difference]: Finished difference Result 7351 states and 8558 transitions. [2023-11-29 05:26:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-29 05:26:45,275 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.0) internal successors, (195), 16 states have internal predecessors, (195), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 175 [2023-11-29 05:26:45,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:45,290 INFO L225 Difference]: With dead ends: 7351 [2023-11-29 05:26:45,290 INFO L226 Difference]: Without dead ends: 7316 [2023-11-29 05:26:45,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=849, Invalid=2691, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 05:26:45,293 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 550 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:45,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 476 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:26:45,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2023-11-29 05:26:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 5958. [2023-11-29 05:26:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5608 states have (on average 1.0608059914407988) internal successors, (5949), 5611 states have internal predecessors, (5949), 344 states have call successors, (344), 2 states have call predecessors, (344), 2 states have return successors, (344), 344 states have call predecessors, (344), 344 states have call successors, (344) [2023-11-29 05:26:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 6637 transitions. [2023-11-29 05:26:45,861 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 6637 transitions. Word has length 175 [2023-11-29 05:26:45,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:45,862 INFO L495 AbstractCegarLoop]: Abstraction has 5958 states and 6637 transitions. [2023-11-29 05:26:45,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.0) internal successors, (195), 16 states have internal predecessors, (195), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:26:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 6637 transitions. [2023-11-29 05:26:45,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-29 05:26:45,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:45,865 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:45,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 05:26:46,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 05:26:46,066 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:46,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:46,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1824792118, now seen corresponding path program 2 times [2023-11-29 05:26:46,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:46,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627336119] [2023-11-29 05:26:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:46,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:46,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:46,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258784255] [2023-11-29 05:26:46,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:26:46,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:46,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:46,078 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:46,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 05:26:46,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:26:46,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:46,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:26:46,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 05:26:46,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 05:26:46,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627336119] [2023-11-29 05:26:46,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258784255] [2023-11-29 05:26:46,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258784255] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:46,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:46,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 05:26:46,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365561693] [2023-11-29 05:26:46,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:46,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 05:26:46,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:46,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 05:26:46,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:26:46,557 INFO L87 Difference]: Start difference. First operand 5958 states and 6637 transitions. Second operand has 20 states, 19 states have (on average 14.473684210526315) internal successors, (275), 20 states have internal predecessors, (275), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 05:26:47,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:47,786 INFO L93 Difference]: Finished difference Result 8683 states and 9773 transitions. [2023-11-29 05:26:47,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 05:26:47,786 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 14.473684210526315) internal successors, (275), 20 states have internal predecessors, (275), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 190 [2023-11-29 05:26:47,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:47,797 INFO L225 Difference]: With dead ends: 8683 [2023-11-29 05:26:47,798 INFO L226 Difference]: Without dead ends: 8682 [2023-11-29 05:26:47,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:26:47,800 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 347 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:47,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 306 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:26:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8682 states. [2023-11-29 05:26:48,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8631. [2023-11-29 05:26:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8631 states, 8113 states have (on average 1.073462344385554) internal successors, (8709), 8116 states have internal predecessors, (8709), 512 states have call successors, (512), 2 states have call predecessors, (512), 2 states have return successors, (512), 512 states have call predecessors, (512), 512 states have call successors, (512) [2023-11-29 05:26:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8631 states to 8631 states and 9733 transitions. [2023-11-29 05:26:48,412 INFO L78 Accepts]: Start accepts. Automaton has 8631 states and 9733 transitions. Word has length 190 [2023-11-29 05:26:48,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:48,412 INFO L495 AbstractCegarLoop]: Abstraction has 8631 states and 9733 transitions. [2023-11-29 05:26:48,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 14.473684210526315) internal successors, (275), 20 states have internal predecessors, (275), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 05:26:48,412 INFO L276 IsEmpty]: Start isEmpty. Operand 8631 states and 9733 transitions. [2023-11-29 05:26:48,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-29 05:26:48,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:48,416 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:48,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 05:26:48,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 05:26:48,616 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:48,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2046102192, now seen corresponding path program 10 times [2023-11-29 05:26:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:48,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462991151] [2023-11-29 05:26:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:48,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:48,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338785331] [2023-11-29 05:26:48,629 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:26:48,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:48,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:48,630 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:48,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 05:26:48,716 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:26:48,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:48,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:26:48,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 05:26:48,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 05:26:49,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:49,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462991151] [2023-11-29 05:26:49,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:49,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338785331] [2023-11-29 05:26:49,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338785331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:49,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:49,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2023-11-29 05:26:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616194382] [2023-11-29 05:26:49,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:49,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:26:49,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:49,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:26:49,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:26:49,181 INFO L87 Difference]: Start difference. First operand 8631 states and 9733 transitions. Second operand has 16 states, 16 states have (on average 12.8125) internal successors, (205), 16 states have internal predecessors, (205), 14 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2023-11-29 05:26:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:50,311 INFO L93 Difference]: Finished difference Result 15364 states and 17529 transitions. [2023-11-29 05:26:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:26:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.8125) internal successors, (205), 16 states have internal predecessors, (205), 14 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 195 [2023-11-29 05:26:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:50,326 INFO L225 Difference]: With dead ends: 15364 [2023-11-29 05:26:50,326 INFO L226 Difference]: Without dead ends: 12014 [2023-11-29 05:26:50,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 368 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2023-11-29 05:26:50,331 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 59 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:50,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 508 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:26:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12014 states. [2023-11-29 05:26:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12014 to 9969. [2023-11-29 05:26:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9969 states, 9367 states have (on average 1.0692857905412618) internal successors, (10016), 9370 states have internal predecessors, (10016), 596 states have call successors, (596), 2 states have call predecessors, (596), 2 states have return successors, (596), 596 states have call predecessors, (596), 596 states have call successors, (596) [2023-11-29 05:26:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9969 states to 9969 states and 11208 transitions. [2023-11-29 05:26:51,110 INFO L78 Accepts]: Start accepts. Automaton has 9969 states and 11208 transitions. Word has length 195 [2023-11-29 05:26:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:51,111 INFO L495 AbstractCegarLoop]: Abstraction has 9969 states and 11208 transitions. [2023-11-29 05:26:51,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.8125) internal successors, (205), 16 states have internal predecessors, (205), 14 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2023-11-29 05:26:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 9969 states and 11208 transitions. [2023-11-29 05:26:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-29 05:26:51,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:51,113 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:51,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 05:26:51,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 05:26:51,314 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:51,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:51,314 INFO L85 PathProgramCache]: Analyzing trace with hash -40826342, now seen corresponding path program 11 times [2023-11-29 05:26:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:51,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415156752] [2023-11-29 05:26:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:51,323 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:51,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775490595] [2023-11-29 05:26:51,323 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:26:51,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:51,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:51,324 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:51,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 05:26:51,404 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-11-29 05:26:51,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:51,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:26:51,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-29 05:26:51,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:51,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:51,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415156752] [2023-11-29 05:26:51,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:51,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775490595] [2023-11-29 05:26:51,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775490595] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:51,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:51,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:26:51,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000763553] [2023-11-29 05:26:51,828 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:51,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:26:51,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:51,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:26:51,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:26:51,829 INFO L87 Difference]: Start difference. First operand 9969 states and 11208 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:52,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:52,728 INFO L93 Difference]: Finished difference Result 14658 states and 16585 transitions. [2023-11-29 05:26:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:26:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 195 [2023-11-29 05:26:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:52,746 INFO L225 Difference]: With dead ends: 14658 [2023-11-29 05:26:52,746 INFO L226 Difference]: Without dead ends: 9942 [2023-11-29 05:26:52,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:26:52,753 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 80 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:52,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 270 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:26:52,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9942 states. [2023-11-29 05:26:53,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9942 to 9608. [2023-11-29 05:26:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9608 states, 9026 states have (on average 1.0701307334367383) internal successors, (9659), 9029 states have internal predecessors, (9659), 576 states have call successors, (576), 2 states have call predecessors, (576), 2 states have return successors, (576), 576 states have call predecessors, (576), 576 states have call successors, (576) [2023-11-29 05:26:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9608 states to 9608 states and 10811 transitions. [2023-11-29 05:26:53,499 INFO L78 Accepts]: Start accepts. Automaton has 9608 states and 10811 transitions. Word has length 195 [2023-11-29 05:26:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:53,499 INFO L495 AbstractCegarLoop]: Abstraction has 9608 states and 10811 transitions. [2023-11-29 05:26:53,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:26:53,499 INFO L276 IsEmpty]: Start isEmpty. Operand 9608 states and 10811 transitions. [2023-11-29 05:26:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 05:26:53,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:53,502 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:53,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 05:26:53,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:53,702 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:53,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash 959833887, now seen corresponding path program 12 times [2023-11-29 05:26:53,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:53,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142681470] [2023-11-29 05:26:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:53,712 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:53,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384776127] [2023-11-29 05:26:53,713 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:26:53,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:53,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:53,714 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:53,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 05:26:54,157 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-11-29 05:26:54,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:54,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:26:54,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-29 05:26:54,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:54,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:54,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142681470] [2023-11-29 05:26:54,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:54,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384776127] [2023-11-29 05:26:54,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384776127] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:26:54,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:26:54,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 05:26:54,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573187521] [2023-11-29 05:26:54,625 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:54,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:26:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:26:54,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:26:54,626 INFO L87 Difference]: Start difference. First operand 9608 states and 10811 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 05:26:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:55,503 INFO L93 Difference]: Finished difference Result 10001 states and 11246 transitions. [2023-11-29 05:26:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:26:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 215 [2023-11-29 05:26:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:55,516 INFO L225 Difference]: With dead ends: 10001 [2023-11-29 05:26:55,516 INFO L226 Difference]: Without dead ends: 10000 [2023-11-29 05:26:55,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:26:55,519 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:55,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 348 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:26:55,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2023-11-29 05:26:56,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 9607. [2023-11-29 05:26:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9607 states, 9024 states have (on average 1.0700354609929077) internal successors, (9656), 9027 states have internal predecessors, (9656), 577 states have call successors, (577), 2 states have call predecessors, (577), 2 states have return successors, (577), 577 states have call predecessors, (577), 577 states have call successors, (577) [2023-11-29 05:26:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9607 states to 9607 states and 10810 transitions. [2023-11-29 05:26:56,225 INFO L78 Accepts]: Start accepts. Automaton has 9607 states and 10810 transitions. Word has length 215 [2023-11-29 05:26:56,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:56,226 INFO L495 AbstractCegarLoop]: Abstraction has 9607 states and 10810 transitions. [2023-11-29 05:26:56,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 05:26:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9607 states and 10810 transitions. [2023-11-29 05:26:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-11-29 05:26:56,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:56,229 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:56,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 05:26:56,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 05:26:56,429 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:56,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash -650607649, now seen corresponding path program 3 times [2023-11-29 05:26:56,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:56,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985387113] [2023-11-29 05:26:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:56,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:56,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:56,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685022356] [2023-11-29 05:26:56,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:26:56,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:56,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:56,444 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:56,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 05:26:56,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 05:26:56,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:26:56,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:26:56,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 05:26:56,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 05:26:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:26:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985387113] [2023-11-29 05:26:57,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:26:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685022356] [2023-11-29 05:26:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685022356] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:57,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:26:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 05:26:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110451961] [2023-11-29 05:26:57,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:57,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 05:26:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 05:26:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:26:57,036 INFO L87 Difference]: Start difference. First operand 9607 states and 10810 transitions. Second operand has 24 states, 23 states have (on average 14.304347826086957) internal successors, (329), 24 states have internal predecessors, (329), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 05:26:58,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:26:58,283 INFO L93 Difference]: Finished difference Result 14791 states and 17050 transitions. [2023-11-29 05:26:58,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 05:26:58,284 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.304347826086957) internal successors, (329), 24 states have internal predecessors, (329), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 227 [2023-11-29 05:26:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:26:58,297 INFO L225 Difference]: With dead ends: 14791 [2023-11-29 05:26:58,298 INFO L226 Difference]: Without dead ends: 14790 [2023-11-29 05:26:58,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:26:58,300 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 203 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:26:58,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 267 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:26:58,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14790 states. [2023-11-29 05:26:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14790 to 13974. [2023-11-29 05:26:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13974 states, 13118 states have (on average 1.0888092697057479) internal successors, (14283), 13121 states have internal predecessors, (14283), 850 states have call successors, (850), 2 states have call predecessors, (850), 2 states have return successors, (850), 850 states have call predecessors, (850), 850 states have call successors, (850) [2023-11-29 05:26:59,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13974 states to 13974 states and 15983 transitions. [2023-11-29 05:26:59,258 INFO L78 Accepts]: Start accepts. Automaton has 13974 states and 15983 transitions. Word has length 227 [2023-11-29 05:26:59,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:26:59,258 INFO L495 AbstractCegarLoop]: Abstraction has 13974 states and 15983 transitions. [2023-11-29 05:26:59,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.304347826086957) internal successors, (329), 24 states have internal predecessors, (329), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 05:26:59,258 INFO L276 IsEmpty]: Start isEmpty. Operand 13974 states and 15983 transitions. [2023-11-29 05:26:59,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 05:26:59,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:26:59,262 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:26:59,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 05:26:59,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 05:26:59,462 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:26:59,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:26:59,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1020077166, now seen corresponding path program 13 times [2023-11-29 05:26:59,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:26:59,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742847843] [2023-11-29 05:26:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:26:59,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:26:59,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:26:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844139935] [2023-11-29 05:26:59,472 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:26:59,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:26:59,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:26:59,473 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:26:59,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 05:26:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:26:59,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:26:59,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 05:26:59,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:00,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 05:27:00,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:00,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742847843] [2023-11-29 05:27:00,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:00,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844139935] [2023-11-29 05:27:00,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844139935] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:00,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:00,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2023-11-29 05:27:00,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656842495] [2023-11-29 05:27:00,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:00,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 05:27:00,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:00,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 05:27:00,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:27:00,187 INFO L87 Difference]: Start difference. First operand 13974 states and 15983 transitions. Second operand has 19 states, 19 states have (on average 13.157894736842104) internal successors, (250), 19 states have internal predecessors, (250), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:01,985 INFO L93 Difference]: Finished difference Result 27084 states and 31355 transitions. [2023-11-29 05:27:01,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:27:01,985 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.157894736842104) internal successors, (250), 19 states have internal predecessors, (250), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 235 [2023-11-29 05:27:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:02,003 INFO L225 Difference]: With dead ends: 27084 [2023-11-29 05:27:02,003 INFO L226 Difference]: Without dead ends: 20705 [2023-11-29 05:27:02,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 444 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2023-11-29 05:27:02,013 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 77 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:02,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 457 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:27:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20705 states. [2023-11-29 05:27:03,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20705 to 15523. [2023-11-29 05:27:03,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15523 states, 14572 states have (on average 1.0853692012077958) internal successors, (15816), 14575 states have internal predecessors, (15816), 945 states have call successors, (945), 2 states have call predecessors, (945), 2 states have return successors, (945), 945 states have call predecessors, (945), 945 states have call successors, (945) [2023-11-29 05:27:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 17706 transitions. [2023-11-29 05:27:03,091 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 17706 transitions. Word has length 235 [2023-11-29 05:27:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:03,091 INFO L495 AbstractCegarLoop]: Abstraction has 15523 states and 17706 transitions. [2023-11-29 05:27:03,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.157894736842104) internal successors, (250), 19 states have internal predecessors, (250), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 17706 transitions. [2023-11-29 05:27:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 05:27:03,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:03,095 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:03,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 05:27:03,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:03,295 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:03,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:03,296 INFO L85 PathProgramCache]: Analyzing trace with hash 529733634, now seen corresponding path program 14 times [2023-11-29 05:27:03,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:03,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446624616] [2023-11-29 05:27:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:03,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:03,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644111320] [2023-11-29 05:27:03,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:27:03,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:03,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:03,305 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:03,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 05:27:03,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:27:03,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:03,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:27:03,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:03,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 465 proven. 252 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-29 05:27:03,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 189 proven. 528 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-29 05:27:03,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:03,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446624616] [2023-11-29 05:27:03,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:03,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644111320] [2023-11-29 05:27:03,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644111320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:03,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:03,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 05:27:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012410315] [2023-11-29 05:27:03,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:03,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:27:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:03,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:27:03,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:27:03,871 INFO L87 Difference]: Start difference. First operand 15523 states and 17706 transitions. Second operand has 18 states, 18 states have (on average 14.222222222222221) internal successors, (256), 18 states have internal predecessors, (256), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:06,440 INFO L93 Difference]: Finished difference Result 40276 states and 46841 transitions. [2023-11-29 05:27:06,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 05:27:06,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.222222222222221) internal successors, (256), 18 states have internal predecessors, (256), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 235 [2023-11-29 05:27:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:06,468 INFO L225 Difference]: With dead ends: 40276 [2023-11-29 05:27:06,468 INFO L226 Difference]: Without dead ends: 28992 [2023-11-29 05:27:06,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=386, Invalid=1020, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 05:27:06,479 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 134 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:06,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:27:06,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28992 states. [2023-11-29 05:27:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28992 to 13137. [2023-11-29 05:27:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13137 states, 12319 states have (on average 1.089211786670996) internal successors, (13418), 12322 states have internal predecessors, (13418), 812 states have call successors, (812), 2 states have call predecessors, (812), 2 states have return successors, (812), 812 states have call predecessors, (812), 812 states have call successors, (812) [2023-11-29 05:27:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13137 states to 13137 states and 15042 transitions. [2023-11-29 05:27:07,546 INFO L78 Accepts]: Start accepts. Automaton has 13137 states and 15042 transitions. Word has length 235 [2023-11-29 05:27:07,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:07,547 INFO L495 AbstractCegarLoop]: Abstraction has 13137 states and 15042 transitions. [2023-11-29 05:27:07,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.222222222222221) internal successors, (256), 18 states have internal predecessors, (256), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 13137 states and 15042 transitions. [2023-11-29 05:27:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 05:27:07,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:07,550 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:07,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 05:27:07,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 05:27:07,750 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:07,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1980277955, now seen corresponding path program 15 times [2023-11-29 05:27:07,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:07,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089354705] [2023-11-29 05:27:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:07,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:07,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:07,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654229257] [2023-11-29 05:27:07,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:27:07,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:07,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:07,765 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:07,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 05:27:07,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 05:27:07,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:07,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 05:27:07,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 0 proven. 792 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-11-29 05:27:08,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 0 proven. 792 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-11-29 05:27:08,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:08,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089354705] [2023-11-29 05:27:08,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:08,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654229257] [2023-11-29 05:27:08,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654229257] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:08,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 05:27:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905148020] [2023-11-29 05:27:08,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:08,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 05:27:08,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 05:27:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:27:08,651 INFO L87 Difference]: Start difference. First operand 13137 states and 15042 transitions. Second operand has 20 states, 19 states have (on average 12.368421052631579) internal successors, (235), 20 states have internal predecessors, (235), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 05:27:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:12,699 INFO L93 Difference]: Finished difference Result 15052 states and 17201 transitions. [2023-11-29 05:27:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 05:27:12,699 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 12.368421052631579) internal successors, (235), 20 states have internal predecessors, (235), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 255 [2023-11-29 05:27:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:12,713 INFO L225 Difference]: With dead ends: 15052 [2023-11-29 05:27:12,713 INFO L226 Difference]: Without dead ends: 15050 [2023-11-29 05:27:12,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1834 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1348, Invalid=4504, Unknown=0, NotChecked=0, Total=5852 [2023-11-29 05:27:12,718 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 542 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:12,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 679 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:27:12,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15050 states. [2023-11-29 05:27:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15050 to 14307. [2023-11-29 05:27:13,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14307 states, 13416 states have (on average 1.0906380441264163) internal successors, (14632), 13419 states have internal predecessors, (14632), 885 states have call successors, (885), 2 states have call predecessors, (885), 2 states have return successors, (885), 885 states have call predecessors, (885), 885 states have call successors, (885) [2023-11-29 05:27:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14307 states to 14307 states and 16402 transitions. [2023-11-29 05:27:13,974 INFO L78 Accepts]: Start accepts. Automaton has 14307 states and 16402 transitions. Word has length 255 [2023-11-29 05:27:13,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:13,974 INFO L495 AbstractCegarLoop]: Abstraction has 14307 states and 16402 transitions. [2023-11-29 05:27:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 12.368421052631579) internal successors, (235), 20 states have internal predecessors, (235), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 05:27:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 14307 states and 16402 transitions. [2023-11-29 05:27:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-29 05:27:13,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:13,980 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:13,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2023-11-29 05:27:14,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 05:27:14,180 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:14,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash -483420408, now seen corresponding path program 16 times [2023-11-29 05:27:14,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:14,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493461469] [2023-11-29 05:27:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:14,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:14,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:14,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29355881] [2023-11-29 05:27:14,193 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:27:14,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:14,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:14,194 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:14,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 05:27:14,287 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:27:14,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:14,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:27:14,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 0 proven. 1365 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-11-29 05:27:14,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:14,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:14,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493461469] [2023-11-29 05:27:14,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:14,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29355881] [2023-11-29 05:27:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29355881] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:27:14,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:27:14,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:27:14,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212318095] [2023-11-29 05:27:14,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:14,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:27:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:14,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:27:14,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:27:14,714 INFO L87 Difference]: Start difference. First operand 14307 states and 16402 transitions. Second operand has 11 states, 10 states have (on average 13.6) internal successors, (136), 11 states have internal predecessors, (136), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:27:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:17,014 INFO L93 Difference]: Finished difference Result 15969 states and 18235 transitions. [2023-11-29 05:27:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 05:27:17,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.6) internal successors, (136), 11 states have internal predecessors, (136), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 315 [2023-11-29 05:27:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:17,029 INFO L225 Difference]: With dead ends: 15969 [2023-11-29 05:27:17,029 INFO L226 Difference]: Without dead ends: 15513 [2023-11-29 05:27:17,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=1176, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 05:27:17,034 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 381 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:17,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 337 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:27:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15513 states. [2023-11-29 05:27:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15513 to 14266. [2023-11-29 05:27:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14266 states, 13377 states have (on average 1.0906032742767438) internal successors, (14589), 13380 states have internal predecessors, (14589), 883 states have call successors, (883), 2 states have call predecessors, (883), 2 states have return successors, (883), 883 states have call predecessors, (883), 883 states have call successors, (883) [2023-11-29 05:27:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14266 states to 14266 states and 16355 transitions. [2023-11-29 05:27:18,125 INFO L78 Accepts]: Start accepts. Automaton has 14266 states and 16355 transitions. Word has length 315 [2023-11-29 05:27:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:18,125 INFO L495 AbstractCegarLoop]: Abstraction has 14266 states and 16355 transitions. [2023-11-29 05:27:18,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.6) internal successors, (136), 11 states have internal predecessors, (136), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:27:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 14266 states and 16355 transitions. [2023-11-29 05:27:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-29 05:27:18,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:18,130 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:18,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 05:27:18,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 05:27:18,331 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:18,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:18,331 INFO L85 PathProgramCache]: Analyzing trace with hash 127968034, now seen corresponding path program 4 times [2023-11-29 05:27:18,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:18,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431110075] [2023-11-29 05:27:18,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:18,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:18,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:18,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47672384] [2023-11-29 05:27:18,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:27:18,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:18,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:18,346 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:18,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 05:27:18,444 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:27:18,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:18,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:27:18,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2123 backedges. 81 proven. 1726 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-11-29 05:27:19,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2123 backedges. 81 proven. 1726 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-11-29 05:27:19,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:19,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431110075] [2023-11-29 05:27:19,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:19,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47672384] [2023-11-29 05:27:19,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47672384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:19,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:19,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2023-11-29 05:27:19,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355070409] [2023-11-29 05:27:19,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:19,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-11-29 05:27:19,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-11-29 05:27:19,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=476, Invalid=1330, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 05:27:19,973 INFO L87 Difference]: Start difference. First operand 14266 states and 16355 transitions. Second operand has 43 states, 42 states have (on average 11.285714285714286) internal successors, (474), 43 states have internal predecessors, (474), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-29 05:27:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:23,531 INFO L93 Difference]: Finished difference Result 16098 states and 18439 transitions. [2023-11-29 05:27:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-11-29 05:27:23,532 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 11.285714285714286) internal successors, (474), 43 states have internal predecessors, (474), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 317 [2023-11-29 05:27:23,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:23,546 INFO L225 Difference]: With dead ends: 16098 [2023-11-29 05:27:23,546 INFO L226 Difference]: Without dead ends: 16097 [2023-11-29 05:27:23,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3904 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3956, Invalid=9154, Unknown=0, NotChecked=0, Total=13110 [2023-11-29 05:27:23,552 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 422 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:23,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 170 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:27:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16097 states. [2023-11-29 05:27:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16097 to 15305. [2023-11-29 05:27:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15305 states, 14351 states have (on average 1.0877987596683159) internal successors, (15611), 14354 states have internal predecessors, (15611), 948 states have call successors, (948), 2 states have call predecessors, (948), 2 states have return successors, (948), 948 states have call predecessors, (948), 948 states have call successors, (948) [2023-11-29 05:27:24,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15305 states to 15305 states and 17507 transitions. [2023-11-29 05:27:24,778 INFO L78 Accepts]: Start accepts. Automaton has 15305 states and 17507 transitions. Word has length 317 [2023-11-29 05:27:24,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:24,778 INFO L495 AbstractCegarLoop]: Abstraction has 15305 states and 17507 transitions. [2023-11-29 05:27:24,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 11.285714285714286) internal successors, (474), 43 states have internal predecessors, (474), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-29 05:27:24,779 INFO L276 IsEmpty]: Start isEmpty. Operand 15305 states and 17507 transitions. [2023-11-29 05:27:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-29 05:27:24,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:24,782 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:24,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 05:27:24,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 05:27:24,983 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:24,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:24,983 INFO L85 PathProgramCache]: Analyzing trace with hash -281378708, now seen corresponding path program 5 times [2023-11-29 05:27:24,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:24,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181812163] [2023-11-29 05:27:24,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:24,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:24,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:24,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204022719] [2023-11-29 05:27:24,996 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:27:24,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:24,997 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:24,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 05:27:25,121 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2023-11-29 05:27:25,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:25,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:27:25,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2075 backedges. 885 proven. 844 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2023-11-29 05:27:25,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2075 backedges. 781 proven. 844 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-29 05:27:25,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:25,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181812163] [2023-11-29 05:27:25,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:25,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204022719] [2023-11-29 05:27:25,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204022719] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:25,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:25,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2023-11-29 05:27:25,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119274498] [2023-11-29 05:27:25,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:25,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 05:27:25,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:25,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 05:27:25,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:27:25,967 INFO L87 Difference]: Start difference. First operand 15305 states and 17507 transitions. Second operand has 23 states, 23 states have (on average 14.173913043478262) internal successors, (326), 23 states have internal predecessors, (326), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-29 05:27:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:28,619 INFO L93 Difference]: Finished difference Result 28999 states and 33499 transitions. [2023-11-29 05:27:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 05:27:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 14.173913043478262) internal successors, (326), 23 states have internal predecessors, (326), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 317 [2023-11-29 05:27:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:28,640 INFO L225 Difference]: With dead ends: 28999 [2023-11-29 05:27:28,640 INFO L226 Difference]: Without dead ends: 21716 [2023-11-29 05:27:28,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 604 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=697, Invalid=2273, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 05:27:28,651 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 270 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:28,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 560 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:27:28,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21716 states. [2023-11-29 05:27:29,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21716 to 15850. [2023-11-29 05:27:29,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15850 states, 14861 states have (on average 1.083305295740529) internal successors, (16099), 14864 states have internal predecessors, (16099), 983 states have call successors, (983), 2 states have call predecessors, (983), 2 states have return successors, (983), 983 states have call predecessors, (983), 983 states have call successors, (983) [2023-11-29 05:27:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15850 states to 15850 states and 18065 transitions. [2023-11-29 05:27:29,951 INFO L78 Accepts]: Start accepts. Automaton has 15850 states and 18065 transitions. Word has length 317 [2023-11-29 05:27:29,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:29,951 INFO L495 AbstractCegarLoop]: Abstraction has 15850 states and 18065 transitions. [2023-11-29 05:27:29,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.173913043478262) internal successors, (326), 23 states have internal predecessors, (326), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-29 05:27:29,951 INFO L276 IsEmpty]: Start isEmpty. Operand 15850 states and 18065 transitions. [2023-11-29 05:27:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-29 05:27:29,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:29,956 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:29,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 05:27:30,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:30,156 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:30,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1672830060, now seen corresponding path program 6 times [2023-11-29 05:27:30,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499979163] [2023-11-29 05:27:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:30,167 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:30,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786805434] [2023-11-29 05:27:30,168 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:27:30,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:30,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:30,169 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:30,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 05:27:30,276 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2023-11-29 05:27:30,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:30,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:27:30,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2075 backedges. 565 proven. 940 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-11-29 05:27:30,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2075 backedges. 123 proven. 1382 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-11-29 05:27:30,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:30,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499979163] [2023-11-29 05:27:30,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:30,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786805434] [2023-11-29 05:27:30,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786805434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:30,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:30,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-11-29 05:27:30,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231961296] [2023-11-29 05:27:30,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:30,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:27:30,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:30,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:27:30,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:27:30,924 INFO L87 Difference]: Start difference. First operand 15850 states and 18065 transitions. Second operand has 18 states, 18 states have (on average 14.222222222222221) internal successors, (256), 18 states have internal predecessors, (256), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:33,443 INFO L93 Difference]: Finished difference Result 16319 states and 18553 transitions. [2023-11-29 05:27:33,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:27:33,443 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.222222222222221) internal successors, (256), 18 states have internal predecessors, (256), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 317 [2023-11-29 05:27:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:33,460 INFO L225 Difference]: With dead ends: 16319 [2023-11-29 05:27:33,460 INFO L226 Difference]: Without dead ends: 15092 [2023-11-29 05:27:33,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2023-11-29 05:27:33,466 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 85 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:33,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1324 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 05:27:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15092 states. [2023-11-29 05:27:34,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15092 to 15069. [2023-11-29 05:27:34,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15069 states, 14126 states have (on average 1.0826136202746708) internal successors, (15293), 14129 states have internal predecessors, (15293), 937 states have call successors, (937), 2 states have call predecessors, (937), 2 states have return successors, (937), 937 states have call predecessors, (937), 937 states have call successors, (937) [2023-11-29 05:27:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15069 states to 15069 states and 17167 transitions. [2023-11-29 05:27:34,577 INFO L78 Accepts]: Start accepts. Automaton has 15069 states and 17167 transitions. Word has length 317 [2023-11-29 05:27:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:34,577 INFO L495 AbstractCegarLoop]: Abstraction has 15069 states and 17167 transitions. [2023-11-29 05:27:34,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.222222222222221) internal successors, (256), 18 states have internal predecessors, (256), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 15069 states and 17167 transitions. [2023-11-29 05:27:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-29 05:27:34,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:34,581 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:34,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 05:27:34,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:34,781 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:34,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:34,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1387060662, now seen corresponding path program 7 times [2023-11-29 05:27:34,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:34,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987224214] [2023-11-29 05:27:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:34,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:34,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:34,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615195069] [2023-11-29 05:27:34,793 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:27:34,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:34,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:34,794 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:34,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 05:27:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:27:34,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 05:27:34,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 42 proven. 1611 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-29 05:27:35,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 42 proven. 1611 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-29 05:27:36,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:36,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987224214] [2023-11-29 05:27:36,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:36,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615195069] [2023-11-29 05:27:36,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615195069] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:36,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:36,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-11-29 05:27:36,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786673302] [2023-11-29 05:27:36,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:36,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-29 05:27:36,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:36,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-29 05:27:36,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=964, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 05:27:36,023 INFO L87 Difference]: Start difference. First operand 15069 states and 17167 transitions. Second operand has 39 states, 38 states have (on average 12.473684210526315) internal successors, (474), 39 states have internal predecessors, (474), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-29 05:27:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:40,879 INFO L93 Difference]: Finished difference Result 27499 states and 31002 transitions. [2023-11-29 05:27:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-11-29 05:27:40,880 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 12.473684210526315) internal successors, (474), 39 states have internal predecessors, (474), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 317 [2023-11-29 05:27:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:40,904 INFO L225 Difference]: With dead ends: 27499 [2023-11-29 05:27:40,904 INFO L226 Difference]: Without dead ends: 27498 [2023-11-29 05:27:40,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3904 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=4259, Invalid=8851, Unknown=0, NotChecked=0, Total=13110 [2023-11-29 05:27:40,912 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 531 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:40,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 201 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:27:40,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27498 states. [2023-11-29 05:27:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27498 to 26641. [2023-11-29 05:27:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26641 states, 25018 states have (on average 1.0551203133743705) internal successors, (26397), 25021 states have internal predecessors, (26397), 1617 states have call successors, (1617), 2 states have call predecessors, (1617), 2 states have return successors, (1617), 1617 states have call predecessors, (1617), 1617 states have call successors, (1617) [2023-11-29 05:27:43,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26641 states to 26641 states and 29631 transitions. [2023-11-29 05:27:43,710 INFO L78 Accepts]: Start accepts. Automaton has 26641 states and 29631 transitions. Word has length 317 [2023-11-29 05:27:43,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:43,711 INFO L495 AbstractCegarLoop]: Abstraction has 26641 states and 29631 transitions. [2023-11-29 05:27:43,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 12.473684210526315) internal successors, (474), 39 states have internal predecessors, (474), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-29 05:27:43,711 INFO L276 IsEmpty]: Start isEmpty. Operand 26641 states and 29631 transitions. [2023-11-29 05:27:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-11-29 05:27:43,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:43,717 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:43,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 05:27:43,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:43,917 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:43,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:43,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1107609921, now seen corresponding path program 17 times [2023-11-29 05:27:43,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:43,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060805305] [2023-11-29 05:27:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:43,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:43,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:43,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027300348] [2023-11-29 05:27:43,930 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:27:43,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:43,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:43,931 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:43,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 05:27:44,057 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2023-11-29 05:27:44,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:44,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:27:44,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 0 proven. 2014 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2023-11-29 05:27:44,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 0 proven. 2014 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2023-11-29 05:27:46,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:46,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060805305] [2023-11-29 05:27:46,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:46,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027300348] [2023-11-29 05:27:46,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027300348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:46,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:46,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 05:27:46,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257860404] [2023-11-29 05:27:46,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:46,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 05:27:46,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:46,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 05:27:46,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:27:46,182 INFO L87 Difference]: Start difference. First operand 26641 states and 29631 transitions. Second operand has 22 states, 21 states have (on average 14.523809523809524) internal successors, (305), 22 states have internal predecessors, (305), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:27:51,690 INFO L93 Difference]: Finished difference Result 28468 states and 31627 transitions. [2023-11-29 05:27:51,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-11-29 05:27:51,690 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.523809523809524) internal successors, (305), 22 states have internal predecessors, (305), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 375 [2023-11-29 05:27:51,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:27:51,719 INFO L225 Difference]: With dead ends: 28468 [2023-11-29 05:27:51,719 INFO L226 Difference]: Without dead ends: 28467 [2023-11-29 05:27:51,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1488 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1279, Invalid=4271, Unknown=0, NotChecked=0, Total=5550 [2023-11-29 05:27:51,724 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 412 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:27:51,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 827 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:27:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28467 states. [2023-11-29 05:27:54,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28467 to 26737. [2023-11-29 05:27:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26737 states, 25108 states have (on average 1.054683766130317) internal successors, (26481), 25111 states have internal predecessors, (26481), 1623 states have call successors, (1623), 2 states have call predecessors, (1623), 2 states have return successors, (1623), 1623 states have call predecessors, (1623), 1623 states have call successors, (1623) [2023-11-29 05:27:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26737 states to 26737 states and 29727 transitions. [2023-11-29 05:27:54,694 INFO L78 Accepts]: Start accepts. Automaton has 26737 states and 29727 transitions. Word has length 375 [2023-11-29 05:27:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:27:54,695 INFO L495 AbstractCegarLoop]: Abstraction has 26737 states and 29727 transitions. [2023-11-29 05:27:54,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.523809523809524) internal successors, (305), 22 states have internal predecessors, (305), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:27:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 26737 states and 29727 transitions. [2023-11-29 05:27:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-11-29 05:27:54,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:27:54,701 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:27:54,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 05:27:54,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 05:27:54,902 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:27:54,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:27:54,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1615787396, now seen corresponding path program 3 times [2023-11-29 05:27:54,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:27:54,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363817020] [2023-11-29 05:27:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:27:54,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:27:54,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:27:54,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122186922] [2023-11-29 05:27:54,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:27:54,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:27:54,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:27:54,916 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:27:54,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 05:27:55,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2023-11-29 05:27:55,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:27:55,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 05:27:55,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:27:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2023-11-29 05:27:55,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:27:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2023-11-29 05:27:56,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:27:56,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363817020] [2023-11-29 05:27:56,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:27:56,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122186922] [2023-11-29 05:27:56,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122186922] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:27:56,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:27:56,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2023-11-29 05:27:56,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68765115] [2023-11-29 05:27:56,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:27:56,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-29 05:27:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:27:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-29 05:27:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 05:27:56,105 INFO L87 Difference]: Start difference. First operand 26737 states and 29727 transitions. Second operand has 40 states, 39 states have (on average 14.743589743589743) internal successors, (575), 40 states have internal predecessors, (575), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 05:28:04,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:04,944 INFO L93 Difference]: Finished difference Result 51089 states and 57511 transitions. [2023-11-29 05:28:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 05:28:04,944 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 14.743589743589743) internal successors, (575), 40 states have internal predecessors, (575), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) Word has length 390 [2023-11-29 05:28:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:04,994 INFO L225 Difference]: With dead ends: 51089 [2023-11-29 05:28:04,995 INFO L226 Difference]: Without dead ends: 51088 [2023-11-29 05:28:05,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 05:28:05,003 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 977 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:05,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 566 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:28:05,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51088 states. [2023-11-29 05:28:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51088 to 40797. [2023-11-29 05:28:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40797 states, 38288 states have (on average 1.0682459256163812) internal successors, (40901), 38291 states have internal predecessors, (40901), 2503 states have call successors, (2503), 2 states have call predecessors, (2503), 2 states have return successors, (2503), 2503 states have call predecessors, (2503), 2503 states have call successors, (2503) [2023-11-29 05:28:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40797 states to 40797 states and 45907 transitions. [2023-11-29 05:28:08,965 INFO L78 Accepts]: Start accepts. Automaton has 40797 states and 45907 transitions. Word has length 390 [2023-11-29 05:28:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:08,966 INFO L495 AbstractCegarLoop]: Abstraction has 40797 states and 45907 transitions. [2023-11-29 05:28:08,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 14.743589743589743) internal successors, (575), 40 states have internal predecessors, (575), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 05:28:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 40797 states and 45907 transitions. [2023-11-29 05:28:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-11-29 05:28:08,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:08,979 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:08,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 05:28:09,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 05:28:09,179 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:28:09,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash 149337269, now seen corresponding path program 18 times [2023-11-29 05:28:09,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:09,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517030050] [2023-11-29 05:28:09,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:09,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:09,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:09,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355119474] [2023-11-29 05:28:09,193 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:28:09,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:09,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:09,194 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:09,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 05:28:09,441 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2023-11-29 05:28:09,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:28:09,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:28:09,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 1756 refuted. 0 times theorem prover too weak. 1964 trivial. 0 not checked. [2023-11-29 05:28:10,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:10,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:10,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517030050] [2023-11-29 05:28:10,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:10,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355119474] [2023-11-29 05:28:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355119474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:28:10,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:28:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:28:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929456964] [2023-11-29 05:28:10,596 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:10,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:28:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:10,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:28:10,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:28:10,598 INFO L87 Difference]: Start difference. First operand 40797 states and 45907 transitions. Second operand has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 12 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 05:28:14,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:14,698 INFO L93 Difference]: Finished difference Result 43379 states and 48752 transitions. [2023-11-29 05:28:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 05:28:14,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 12 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 415 [2023-11-29 05:28:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:14,751 INFO L225 Difference]: With dead ends: 43379 [2023-11-29 05:28:14,752 INFO L226 Difference]: Without dead ends: 43378 [2023-11-29 05:28:14,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:28:14,761 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 43 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:14,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 269 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:28:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43378 states. [2023-11-29 05:28:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43378 to 40816. [2023-11-29 05:28:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40816 states, 38306 states have (on average 1.0682921735498356) internal successors, (40922), 38309 states have internal predecessors, (40922), 2504 states have call successors, (2504), 2 states have call predecessors, (2504), 2 states have return successors, (2504), 2504 states have call predecessors, (2504), 2504 states have call successors, (2504) [2023-11-29 05:28:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40816 states to 40816 states and 45930 transitions. [2023-11-29 05:28:18,597 INFO L78 Accepts]: Start accepts. Automaton has 40816 states and 45930 transitions. Word has length 415 [2023-11-29 05:28:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:18,597 INFO L495 AbstractCegarLoop]: Abstraction has 40816 states and 45930 transitions. [2023-11-29 05:28:18,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 12 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 05:28:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 40816 states and 45930 transitions. [2023-11-29 05:28:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-11-29 05:28:18,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:18,605 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:18,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 05:28:18,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 05:28:18,806 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:28:18,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:18,806 INFO L85 PathProgramCache]: Analyzing trace with hash -797716987, now seen corresponding path program 19 times [2023-11-29 05:28:18,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:18,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494040620] [2023-11-29 05:28:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:18,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:18,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:18,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156322579] [2023-11-29 05:28:18,821 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:28:18,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:18,822 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:18,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 05:28:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:18,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 05:28:18,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3464 backedges. 0 proven. 2592 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-11-29 05:28:19,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3464 backedges. 0 proven. 2592 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-11-29 05:28:21,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:21,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494040620] [2023-11-29 05:28:21,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:21,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156322579] [2023-11-29 05:28:21,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156322579] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:28:21,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:28:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-11-29 05:28:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669636029] [2023-11-29 05:28:21,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:21,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 05:28:21,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:21,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 05:28:21,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2023-11-29 05:28:21,916 INFO L87 Difference]: Start difference. First operand 40816 states and 45930 transitions. Second operand has 28 states, 27 states have (on average 16.11111111111111) internal successors, (435), 28 states have internal predecessors, (435), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 05:28:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:28,206 INFO L93 Difference]: Finished difference Result 40823 states and 45930 transitions. [2023-11-29 05:28:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 05:28:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 16.11111111111111) internal successors, (435), 28 states have internal predecessors, (435), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 415 [2023-11-29 05:28:28,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:28,246 INFO L225 Difference]: With dead ends: 40823 [2023-11-29 05:28:28,246 INFO L226 Difference]: Without dead ends: 40822 [2023-11-29 05:28:28,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1109, Invalid=2923, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 05:28:28,252 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 184 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:28,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1359 Invalid, 2797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 05:28:28,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40822 states. [2023-11-29 05:28:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40822 to 40816. [2023-11-29 05:28:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40816 states, 38306 states have (on average 1.0678744844149741) internal successors, (40906), 38309 states have internal predecessors, (40906), 2504 states have call successors, (2504), 2 states have call predecessors, (2504), 2 states have return successors, (2504), 2504 states have call predecessors, (2504), 2504 states have call successors, (2504) [2023-11-29 05:28:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40816 states to 40816 states and 45914 transitions. [2023-11-29 05:28:31,808 INFO L78 Accepts]: Start accepts. Automaton has 40816 states and 45914 transitions. Word has length 415 [2023-11-29 05:28:31,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:31,808 INFO L495 AbstractCegarLoop]: Abstraction has 40816 states and 45914 transitions. [2023-11-29 05:28:31,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 16.11111111111111) internal successors, (435), 28 states have internal predecessors, (435), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 05:28:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 40816 states and 45914 transitions. [2023-11-29 05:28:31,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-11-29 05:28:31,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:31,818 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:31,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 05:28:32,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 05:28:32,019 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:28:32,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash -373208316, now seen corresponding path program 20 times [2023-11-29 05:28:32,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:32,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860466720] [2023-11-29 05:28:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:32,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:32,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870303768] [2023-11-29 05:28:32,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:28:32,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:32,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:32,034 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:32,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 05:28:32,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:28:32,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:28:32,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:28:32,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4115 backedges. 1267 proven. 2004 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2023-11-29 05:28:32,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4115 backedges. 1267 proven. 2004 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2023-11-29 05:28:33,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:33,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860466720] [2023-11-29 05:28:33,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:33,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870303768] [2023-11-29 05:28:33,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870303768] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:28:33,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:28:33,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 42 [2023-11-29 05:28:33,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141805967] [2023-11-29 05:28:33,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:33,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-29 05:28:33,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:33,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-29 05:28:33,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1259, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 05:28:33,533 INFO L87 Difference]: Start difference. First operand 40816 states and 45914 transitions. Second operand has 42 states, 42 states have (on average 13.880952380952381) internal successors, (583), 42 states have internal predecessors, (583), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 05:28:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:45,673 INFO L93 Difference]: Finished difference Result 126740 states and 145271 transitions. [2023-11-29 05:28:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-11-29 05:28:45,673 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 13.880952380952381) internal successors, (583), 42 states have internal predecessors, (583), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) Word has length 435 [2023-11-29 05:28:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:45,810 INFO L225 Difference]: With dead ends: 126740 [2023-11-29 05:28:45,811 INFO L226 Difference]: Without dead ends: 105750 [2023-11-29 05:28:45,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 824 SyntacticMatches, 4 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7200 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=4299, Invalid=16293, Unknown=0, NotChecked=0, Total=20592 [2023-11-29 05:28:45,836 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1364 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 2486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:45,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 1089 Invalid, 2486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 05:28:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105750 states. [2023-11-29 05:28:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105750 to 78749. [2023-11-29 05:28:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78749 states, 73883 states have (on average 1.076539934761718) internal successors, (79538), 73886 states have internal predecessors, (79538), 4860 states have call successors, (4860), 2 states have call predecessors, (4860), 2 states have return successors, (4860), 4860 states have call predecessors, (4860), 4860 states have call successors, (4860) [2023-11-29 05:28:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78749 states to 78749 states and 89258 transitions. [2023-11-29 05:28:53,120 INFO L78 Accepts]: Start accepts. Automaton has 78749 states and 89258 transitions. Word has length 435 [2023-11-29 05:28:53,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:53,121 INFO L495 AbstractCegarLoop]: Abstraction has 78749 states and 89258 transitions. [2023-11-29 05:28:53,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 13.880952380952381) internal successors, (583), 42 states have internal predecessors, (583), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 05:28:53,121 INFO L276 IsEmpty]: Start isEmpty. Operand 78749 states and 89258 transitions. [2023-11-29 05:28:53,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-11-29 05:28:53,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:53,128 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 18, 18, 18, 18, 18, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:53,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 05:28:53,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 05:28:53,329 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:28:53,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:53,329 INFO L85 PathProgramCache]: Analyzing trace with hash -677641010, now seen corresponding path program 21 times [2023-11-29 05:28:53,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:53,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065471964] [2023-11-29 05:28:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:53,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:53,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66757290] [2023-11-29 05:28:53,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:28:53,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:53,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:53,345 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:53,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 05:28:53,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-11-29 05:28:53,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:28:53,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:28:53,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4051 backedges. 1514 proven. 335 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2023-11-29 05:28:53,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:53,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:53,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065471964] [2023-11-29 05:28:53,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:53,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66757290] [2023-11-29 05:28:53,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66757290] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:28:53,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:28:53,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:28:53,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819065135] [2023-11-29 05:28:53,753 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:53,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:28:53,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:53,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:28:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:28:53,754 INFO L87 Difference]: Start difference. First operand 78749 states and 89258 transitions. Second operand has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 05:29:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:00,928 INFO L93 Difference]: Finished difference Result 84148 states and 95247 transitions. [2023-11-29 05:29:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 05:29:00,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 435 [2023-11-29 05:29:00,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:01,042 INFO L225 Difference]: With dead ends: 84148 [2023-11-29 05:29:01,042 INFO L226 Difference]: Without dead ends: 77735 [2023-11-29 05:29:01,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:29:01,061 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 129 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:01,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 999 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:29:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77735 states. [2023-11-29 05:29:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77735 to 71676. [2023-11-29 05:29:07,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71676 states, 67243 states have (on average 1.0784914414883333) internal successors, (72521), 67246 states have internal predecessors, (72521), 4427 states have call successors, (4427), 2 states have call predecessors, (4427), 2 states have return successors, (4427), 4427 states have call predecessors, (4427), 4427 states have call successors, (4427) [2023-11-29 05:29:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71676 states to 71676 states and 81375 transitions. [2023-11-29 05:29:07,464 INFO L78 Accepts]: Start accepts. Automaton has 71676 states and 81375 transitions. Word has length 435 [2023-11-29 05:29:07,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:07,464 INFO L495 AbstractCegarLoop]: Abstraction has 71676 states and 81375 transitions. [2023-11-29 05:29:07,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 05:29:07,465 INFO L276 IsEmpty]: Start isEmpty. Operand 71676 states and 81375 transitions. [2023-11-29 05:29:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2023-11-29 05:29:07,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:07,473 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:07,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 05:29:07,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:07,674 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:29:07,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:07,674 INFO L85 PathProgramCache]: Analyzing trace with hash -242083181, now seen corresponding path program 4 times [2023-11-29 05:29:07,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:07,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629767115] [2023-11-29 05:29:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:07,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:07,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:29:07,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7593855] [2023-11-29 05:29:07,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:29:07,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:07,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:07,690 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:07,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 05:29:07,821 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:29:07,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:29:07,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:29:07,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:29:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4954 backedges. 0 proven. 3938 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-11-29 05:29:08,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:29:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4954 backedges. 0 proven. 3938 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-11-29 05:29:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:09,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629767115] [2023-11-29 05:29:09,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:29:09,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7593855] [2023-11-29 05:29:09,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7593855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:29:09,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:29:09,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-11-29 05:29:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441308668] [2023-11-29 05:29:09,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:29:09,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 05:29:09,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:09,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 05:29:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 05:29:09,243 INFO L87 Difference]: Start difference. First operand 71676 states and 81375 transitions. Second operand has 48 states, 47 states have (on average 14.659574468085106) internal successors, (689), 48 states have internal predecessors, (689), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-29 05:29:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:17,214 INFO L93 Difference]: Finished difference Result 89575 states and 102987 transitions. [2023-11-29 05:29:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 05:29:17,215 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 14.659574468085106) internal successors, (689), 48 states have internal predecessors, (689), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) Word has length 467 [2023-11-29 05:29:17,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:17,310 INFO L225 Difference]: With dead ends: 89575 [2023-11-29 05:29:17,310 INFO L226 Difference]: Without dead ends: 89574 [2023-11-29 05:29:17,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 886 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 05:29:17,322 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 571 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:17,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 437 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:29:17,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89574 states. [2023-11-29 05:29:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89574 to 86933. [2023-11-29 05:29:25,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86933 states, 81547 states have (on average 1.0874710289771543) internal successors, (88680), 81550 states have internal predecessors, (88680), 5380 states have call successors, (5380), 2 states have call predecessors, (5380), 2 states have return successors, (5380), 5380 states have call predecessors, (5380), 5380 states have call successors, (5380) [2023-11-29 05:29:25,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86933 states to 86933 states and 99440 transitions. [2023-11-29 05:29:25,712 INFO L78 Accepts]: Start accepts. Automaton has 86933 states and 99440 transitions. Word has length 467 [2023-11-29 05:29:25,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:25,712 INFO L495 AbstractCegarLoop]: Abstraction has 86933 states and 99440 transitions. [2023-11-29 05:29:25,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 14.659574468085106) internal successors, (689), 48 states have internal predecessors, (689), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-29 05:29:25,713 INFO L276 IsEmpty]: Start isEmpty. Operand 86933 states and 99440 transitions. [2023-11-29 05:29:25,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2023-11-29 05:29:25,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:25,723 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:25,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 05:29:25,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:25,924 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:29:25,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1638857659, now seen corresponding path program 22 times [2023-11-29 05:29:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022982900] [2023-11-29 05:29:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:25,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:25,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:29:25,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924688351] [2023-11-29 05:29:25,939 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:29:25,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:25,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:25,940 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:25,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 05:29:26,104 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:29:26,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:29:26,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:29:26,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:29:27,048 INFO L134 CoverageAnalysis]: Checked inductivity of 5344 backedges. 0 proven. 3396 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-11-29 05:29:27,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:29:27,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:27,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022982900] [2023-11-29 05:29:27,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:29:27,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924688351] [2023-11-29 05:29:27,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924688351] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:29:27,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:29:27,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 05:29:27,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806233858] [2023-11-29 05:29:27,181 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:29:27,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:29:27,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:27,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:29:27,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:29:27,182 INFO L87 Difference]: Start difference. First operand 86933 states and 99440 transitions. Second operand has 14 states, 13 states have (on average 13.153846153846153) internal successors, (171), 14 states have internal predecessors, (171), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:29:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:35,902 INFO L93 Difference]: Finished difference Result 88943 states and 101669 transitions. [2023-11-29 05:29:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:29:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.153846153846153) internal successors, (171), 14 states have internal predecessors, (171), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 495 [2023-11-29 05:29:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:35,999 INFO L225 Difference]: With dead ends: 88943 [2023-11-29 05:29:35,999 INFO L226 Difference]: Without dead ends: 88942 [2023-11-29 05:29:36,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:29:36,012 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 40 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:36,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 639 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:29:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88942 states. [2023-11-29 05:29:43,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88942 to 86933. [2023-11-29 05:29:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86933 states, 81547 states have (on average 1.0874587661103412) internal successors, (88679), 81550 states have internal predecessors, (88679), 5380 states have call successors, (5380), 2 states have call predecessors, (5380), 2 states have return successors, (5380), 5380 states have call predecessors, (5380), 5380 states have call successors, (5380) [2023-11-29 05:29:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86933 states to 86933 states and 99439 transitions. [2023-11-29 05:29:43,599 INFO L78 Accepts]: Start accepts. Automaton has 86933 states and 99439 transitions. Word has length 495 [2023-11-29 05:29:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:43,600 INFO L495 AbstractCegarLoop]: Abstraction has 86933 states and 99439 transitions. [2023-11-29 05:29:43,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.153846153846153) internal successors, (171), 14 states have internal predecessors, (171), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 05:29:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 86933 states and 99439 transitions. [2023-11-29 05:29:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2023-11-29 05:29:43,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:43,609 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 22, 22, 22, 22, 22, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:43,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-29 05:29:43,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:43,810 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:29:43,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash -597746678, now seen corresponding path program 23 times [2023-11-29 05:29:43,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:43,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589843203] [2023-11-29 05:29:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:43,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:43,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:29:43,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073232438] [2023-11-29 05:29:43,833 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:29:43,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:43,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:43,834 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:43,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 05:29:43,998 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2023-11-29 05:29:43,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:29:44,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:29:44,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:29:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5815 backedges. 3199 proven. 1508 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2023-11-29 05:29:44,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:29:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5815 backedges. 2655 proven. 1508 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked. [2023-11-29 05:29:44,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:29:44,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589843203] [2023-11-29 05:29:44,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:29:44,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073232438] [2023-11-29 05:29:44,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073232438] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:29:44,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:29:44,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 28 [2023-11-29 05:29:44,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895734667] [2023-11-29 05:29:44,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:29:44,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 05:29:44,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:29:44,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 05:29:44,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2023-11-29 05:29:44,916 INFO L87 Difference]: Start difference. First operand 86933 states and 99439 transitions. Second operand has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 27 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2023-11-29 05:29:52,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:29:52,637 INFO L93 Difference]: Finished difference Result 97055 states and 110882 transitions. [2023-11-29 05:29:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 05:29:52,638 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 27 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) Word has length 515 [2023-11-29 05:29:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:29:52,730 INFO L225 Difference]: With dead ends: 97055 [2023-11-29 05:29:52,730 INFO L226 Difference]: Without dead ends: 82987 [2023-11-29 05:29:52,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 992 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=999, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 05:29:52,748 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 111 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:29:52,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 800 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:29:52,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82987 states. [2023-11-29 05:29:59,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82987 to 82169. [2023-11-29 05:29:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82169 states, 77065 states have (on average 1.0832803477583859) internal successors, (83483), 77068 states have internal predecessors, (83483), 5098 states have call successors, (5098), 2 states have call predecessors, (5098), 2 states have return successors, (5098), 5098 states have call predecessors, (5098), 5098 states have call successors, (5098) [2023-11-29 05:29:59,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82169 states to 82169 states and 93679 transitions. [2023-11-29 05:29:59,321 INFO L78 Accepts]: Start accepts. Automaton has 82169 states and 93679 transitions. Word has length 515 [2023-11-29 05:29:59,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:29:59,321 INFO L495 AbstractCegarLoop]: Abstraction has 82169 states and 93679 transitions. [2023-11-29 05:29:59,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 27 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2023-11-29 05:29:59,321 INFO L276 IsEmpty]: Start isEmpty. Operand 82169 states and 93679 transitions. [2023-11-29 05:29:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2023-11-29 05:29:59,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:29:59,334 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 24, 24, 24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:29:59,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 05:29:59,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 05:29:59,535 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:29:59,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:29:59,535 INFO L85 PathProgramCache]: Analyzing trace with hash -577200113, now seen corresponding path program 24 times [2023-11-29 05:29:59,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:29:59,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675629376] [2023-11-29 05:29:59,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:29:59,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:29:59,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:29:59,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863960793] [2023-11-29 05:29:59,551 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:29:59,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:29:59,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:29:59,552 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:29:59,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 05:29:59,778 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2023-11-29 05:29:59,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:29:59,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:29:59,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 6390 backedges. 0 proven. 3886 refuted. 0 times theorem prover too weak. 2504 trivial. 0 not checked. [2023-11-29 05:30:00,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:01,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:01,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675629376] [2023-11-29 05:30:01,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:30:01,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863960793] [2023-11-29 05:30:01,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863960793] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:30:01,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:30:01,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 05:30:01,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225451197] [2023-11-29 05:30:01,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:01,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:30:01,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:01,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:30:01,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:30:01,028 INFO L87 Difference]: Start difference. First operand 82169 states and 93679 transitions. Second operand has 18 states, 17 states have (on average 13.294117647058824) internal successors, (226), 18 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 05:30:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:09,697 INFO L93 Difference]: Finished difference Result 84355 states and 96206 transitions. [2023-11-29 05:30:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 05:30:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.294117647058824) internal successors, (226), 18 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 535 [2023-11-29 05:30:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:09,799 INFO L225 Difference]: With dead ends: 84355 [2023-11-29 05:30:09,799 INFO L226 Difference]: Without dead ends: 84354 [2023-11-29 05:30:09,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2023-11-29 05:30:09,814 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 48 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:09,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1221 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:30:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84354 states. [2023-11-29 05:30:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84354 to 82667. [2023-11-29 05:30:16,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82667 states, 77533 states have (on average 1.0835257245302001) internal successors, (84009), 77536 states have internal predecessors, (84009), 5128 states have call successors, (5128), 2 states have call predecessors, (5128), 2 states have return successors, (5128), 5128 states have call predecessors, (5128), 5128 states have call successors, (5128) [2023-11-29 05:30:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82667 states to 82667 states and 94265 transitions. [2023-11-29 05:30:16,661 INFO L78 Accepts]: Start accepts. Automaton has 82667 states and 94265 transitions. Word has length 535 [2023-11-29 05:30:16,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:16,662 INFO L495 AbstractCegarLoop]: Abstraction has 82667 states and 94265 transitions. [2023-11-29 05:30:16,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.294117647058824) internal successors, (226), 18 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 05:30:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 82667 states and 94265 transitions. [2023-11-29 05:30:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-11-29 05:30:16,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:16,673 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 25, 25, 25, 25, 25, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:16,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 05:30:16,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 05:30:16,874 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:30:16,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1393952094, now seen corresponding path program 25 times [2023-11-29 05:30:16,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:16,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737426282] [2023-11-29 05:30:16,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:16,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:16,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:30:16,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371570028] [2023-11-29 05:30:16,892 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:30:16,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:30:16,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:30:16,893 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:30:16,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 05:30:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:17,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 05:30:17,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6905 backedges. 1489 proven. 4008 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2023-11-29 05:30:17,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 6905 backedges. 1489 proven. 4008 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2023-11-29 05:30:18,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:18,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737426282] [2023-11-29 05:30:18,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:30:18,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371570028] [2023-11-29 05:30:18,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371570028] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:30:18,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:30:18,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 43 [2023-11-29 05:30:18,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022934906] [2023-11-29 05:30:18,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:18,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-11-29 05:30:18,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:18,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-11-29 05:30:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=434, Invalid=1372, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 05:30:18,624 INFO L87 Difference]: Start difference. First operand 82667 states and 94265 transitions. Second operand has 43 states, 43 states have (on average 14.186046511627907) internal successors, (610), 43 states have internal predecessors, (610), 41 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-11-29 05:30:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:28,088 INFO L93 Difference]: Finished difference Result 163362 states and 188256 transitions. [2023-11-29 05:30:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 05:30:28,088 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 14.186046511627907) internal successors, (610), 43 states have internal predecessors, (610), 41 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) Word has length 555 [2023-11-29 05:30:28,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:28,223 INFO L225 Difference]: With dead ends: 163362 [2023-11-29 05:30:28,223 INFO L226 Difference]: Without dead ends: 108581 [2023-11-29 05:30:28,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1122 GetRequests, 1052 SyntacticMatches, 15 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=763, Invalid=2429, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 05:30:28,256 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 150 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 2797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:28,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1510 Invalid, 2797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:30:28,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108581 states. [2023-11-29 05:30:35,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108581 to 88451. [2023-11-29 05:30:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88451 states, 82940 states have (on average 1.0830721003134796) internal successors, (89830), 82943 states have internal predecessors, (89830), 5505 states have call successors, (5505), 2 states have call predecessors, (5505), 2 states have return successors, (5505), 5505 states have call predecessors, (5505), 5505 states have call successors, (5505) [2023-11-29 05:30:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88451 states to 88451 states and 100840 transitions. [2023-11-29 05:30:35,515 INFO L78 Accepts]: Start accepts. Automaton has 88451 states and 100840 transitions. Word has length 555 [2023-11-29 05:30:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:35,516 INFO L495 AbstractCegarLoop]: Abstraction has 88451 states and 100840 transitions. [2023-11-29 05:30:35,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 14.186046511627907) internal successors, (610), 43 states have internal predecessors, (610), 41 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-11-29 05:30:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 88451 states and 100840 transitions. [2023-11-29 05:30:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2023-11-29 05:30:35,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:35,526 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 24, 24, 24, 24, 24, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:35,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 05:30:35,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 05:30:35,726 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:30:35,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:35,727 INFO L85 PathProgramCache]: Analyzing trace with hash -77035224, now seen corresponding path program 26 times [2023-11-29 05:30:35,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:35,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111163498] [2023-11-29 05:30:35,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:35,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:30:35,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136530925] [2023-11-29 05:30:35,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:30:35,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:30:35,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:30:35,743 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:30:35,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 05:30:35,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:30:35,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:30:35,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:30:35,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6817 backedges. 0 proven. 4321 refuted. 0 times theorem prover too weak. 2496 trivial. 0 not checked. [2023-11-29 05:30:36,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:36,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111163498] [2023-11-29 05:30:36,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:30:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136530925] [2023-11-29 05:30:36,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136530925] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:30:36,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:30:36,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 05:30:36,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898247486] [2023-11-29 05:30:36,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:36,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:30:36,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:36,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:30:36,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:30:36,967 INFO L87 Difference]: Start difference. First operand 88451 states and 100840 transitions. Second operand has 15 states, 14 states have (on average 13.285714285714286) internal successors, (186), 15 states have internal predecessors, (186), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-29 05:30:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:30:45,834 INFO L93 Difference]: Finished difference Result 90167 states and 102763 transitions. [2023-11-29 05:30:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:30:45,834 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.285714285714286) internal successors, (186), 15 states have internal predecessors, (186), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 555 [2023-11-29 05:30:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:30:45,945 INFO L225 Difference]: With dead ends: 90167 [2023-11-29 05:30:45,945 INFO L226 Difference]: Without dead ends: 90166 [2023-11-29 05:30:45,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:30:45,962 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 42 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:30:45,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 810 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:30:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90166 states. [2023-11-29 05:30:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90166 to 88451. [2023-11-29 05:30:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88451 states, 82940 states have (on average 1.083060043404871) internal successors, (89829), 82943 states have internal predecessors, (89829), 5505 states have call successors, (5505), 2 states have call predecessors, (5505), 2 states have return successors, (5505), 5505 states have call predecessors, (5505), 5505 states have call successors, (5505) [2023-11-29 05:30:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88451 states to 88451 states and 100839 transitions. [2023-11-29 05:30:53,086 INFO L78 Accepts]: Start accepts. Automaton has 88451 states and 100839 transitions. Word has length 555 [2023-11-29 05:30:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:30:53,087 INFO L495 AbstractCegarLoop]: Abstraction has 88451 states and 100839 transitions. [2023-11-29 05:30:53,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.285714285714286) internal successors, (186), 15 states have internal predecessors, (186), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-29 05:30:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 88451 states and 100839 transitions. [2023-11-29 05:30:53,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2023-11-29 05:30:53,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:30:53,099 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 26, 26, 26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:53,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 05:30:53,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:30:53,300 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:30:53,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1383490605, now seen corresponding path program 27 times [2023-11-29 05:30:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:53,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876308738] [2023-11-29 05:30:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:53,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:53,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:30:53,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358305668] [2023-11-29 05:30:53,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:30:53,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:30:53,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:30:53,320 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:30:53,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 05:30:53,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2023-11-29 05:30:53,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:30:53,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 05:30:53,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:30:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 7440 backedges. 0 proven. 4520 refuted. 0 times theorem prover too weak. 2920 trivial. 0 not checked. [2023-11-29 05:30:54,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:30:54,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:54,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876308738] [2023-11-29 05:30:54,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:30:54,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358305668] [2023-11-29 05:30:54,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358305668] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:30:54,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:30:54,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 05:30:54,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306552505] [2023-11-29 05:30:54,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:30:54,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 05:30:54,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:54,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 05:30:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:30:54,525 INFO L87 Difference]: Start difference. First operand 88451 states and 100839 transitions. Second operand has 19 states, 18 states have (on average 13.38888888888889) internal successors, (241), 19 states have internal predecessors, (241), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2023-11-29 05:31:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:04,560 INFO L93 Difference]: Finished difference Result 117616 states and 134946 transitions. [2023-11-29 05:31:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 05:31:04,560 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 13.38888888888889) internal successors, (241), 19 states have internal predecessors, (241), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 575 [2023-11-29 05:31:04,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:04,662 INFO L225 Difference]: With dead ends: 117616 [2023-11-29 05:31:04,662 INFO L226 Difference]: Without dead ends: 89267 [2023-11-29 05:31:04,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 05:31:04,695 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 467 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 6180 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 6210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:04,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 2434 Invalid, 6210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 6180 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 05:31:04,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89267 states. [2023-11-29 05:31:12,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89267 to 88396. [2023-11-29 05:31:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88396 states, 82887 states have (on average 1.083052830962636) internal successors, (89771), 82890 states have internal predecessors, (89771), 5503 states have call successors, (5503), 2 states have call predecessors, (5503), 2 states have return successors, (5503), 5503 states have call predecessors, (5503), 5503 states have call successors, (5503) [2023-11-29 05:31:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88396 states to 88396 states and 100777 transitions. [2023-11-29 05:31:12,391 INFO L78 Accepts]: Start accepts. Automaton has 88396 states and 100777 transitions. Word has length 575 [2023-11-29 05:31:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:12,392 INFO L495 AbstractCegarLoop]: Abstraction has 88396 states and 100777 transitions. [2023-11-29 05:31:12,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 13.38888888888889) internal successors, (241), 19 states have internal predecessors, (241), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2023-11-29 05:31:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 88396 states and 100777 transitions. [2023-11-29 05:31:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2023-11-29 05:31:12,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:12,401 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 25, 25, 25, 25, 25, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:12,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 05:31:12,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 05:31:12,602 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:31:12,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 209006839, now seen corresponding path program 28 times [2023-11-29 05:31:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491425950] [2023-11-29 05:31:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:12,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:12,618 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:12,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [337601505] [2023-11-29 05:31:12,618 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:31:12,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:12,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:12,619 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 05:31:12,744 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:31:12,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:31:12,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 05:31:12,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7348 backedges. 4029 proven. 1912 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2023-11-29 05:31:13,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7348 backedges. 3345 proven. 1912 refuted. 0 times theorem prover too weak. 2091 trivial. 0 not checked. [2023-11-29 05:31:13,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:13,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491425950] [2023-11-29 05:31:13,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:13,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337601505] [2023-11-29 05:31:13,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337601505] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:13,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:13,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 31 [2023-11-29 05:31:13,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001668295] [2023-11-29 05:31:13,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:13,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 05:31:13,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 05:31:13,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2023-11-29 05:31:13,739 INFO L87 Difference]: Start difference. First operand 88396 states and 100777 transitions. Second operand has 31 states, 31 states have (on average 14.419354838709678) internal successors, (447), 31 states have internal predecessors, (447), 30 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2023-11-29 05:31:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:22,159 INFO L93 Difference]: Finished difference Result 94897 states and 108083 transitions. [2023-11-29 05:31:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 05:31:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 14.419354838709678) internal successors, (447), 31 states have internal predecessors, (447), 30 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) Word has length 575 [2023-11-29 05:31:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:22,259 INFO L225 Difference]: With dead ends: 94897 [2023-11-29 05:31:22,259 INFO L226 Difference]: Without dead ends: 88404 [2023-11-29 05:31:22,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1158 GetRequests, 1108 SyntacticMatches, 11 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=405, Invalid=1235, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 05:31:22,277 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 102 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:22,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1380 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:31:22,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88404 states. [2023-11-29 05:31:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88404 to 87672. [2023-11-29 05:31:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87672 states, 82206 states have (on average 1.0817701870909666) internal successors, (88928), 82209 states have internal predecessors, (88928), 5460 states have call successors, (5460), 2 states have call predecessors, (5460), 2 states have return successors, (5460), 5460 states have call predecessors, (5460), 5460 states have call successors, (5460) [2023-11-29 05:31:29,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87672 states to 87672 states and 99848 transitions. [2023-11-29 05:31:29,650 INFO L78 Accepts]: Start accepts. Automaton has 87672 states and 99848 transitions. Word has length 575 [2023-11-29 05:31:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:29,651 INFO L495 AbstractCegarLoop]: Abstraction has 87672 states and 99848 transitions. [2023-11-29 05:31:29,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 14.419354838709678) internal successors, (447), 31 states have internal predecessors, (447), 30 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2023-11-29 05:31:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 87672 states and 99848 transitions. [2023-11-29 05:31:29,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2023-11-29 05:31:29,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:29,661 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 24, 24, 24, 24, 24, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:29,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 05:31:29,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 05:31:29,861 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:31:29,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:29,862 INFO L85 PathProgramCache]: Analyzing trace with hash 826118081, now seen corresponding path program 29 times [2023-11-29 05:31:29,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:29,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361388338] [2023-11-29 05:31:29,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:29,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:29,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:29,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1684057247] [2023-11-29 05:31:29,878 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:31:29,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:29,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:29,879 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:29,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 05:31:30,056 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2023-11-29 05:31:30,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:31:30,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:31:30,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 7264 backedges. 4676 proven. 938 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked. [2023-11-29 05:31:30,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7264 backedges. 4148 proven. 938 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2023-11-29 05:31:30,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:30,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361388338] [2023-11-29 05:31:30,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:30,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684057247] [2023-11-29 05:31:30,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684057247] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:30,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:30,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2023-11-29 05:31:30,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565360295] [2023-11-29 05:31:30,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:30,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 05:31:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:30,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 05:31:30,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2023-11-29 05:31:30,789 INFO L87 Difference]: Start difference. First operand 87672 states and 99848 transitions. Second operand has 25 states, 25 states have (on average 14.68) internal successors, (367), 25 states have internal predecessors, (367), 23 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) [2023-11-29 05:31:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:39,628 INFO L93 Difference]: Finished difference Result 92682 states and 105460 transitions. [2023-11-29 05:31:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 05:31:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 14.68) internal successors, (367), 25 states have internal predecessors, (367), 23 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) Word has length 575 [2023-11-29 05:31:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:39,733 INFO L225 Difference]: With dead ends: 92682 [2023-11-29 05:31:39,733 INFO L226 Difference]: Without dead ends: 87581 [2023-11-29 05:31:39,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 1128 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 05:31:39,749 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 219 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:39,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1359 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:31:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87581 states. [2023-11-29 05:31:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87581 to 86774. [2023-11-29 05:31:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86774 states, 81362 states have (on average 1.0814262186278607) internal successors, (87987), 81365 states have internal predecessors, (87987), 5406 states have call successors, (5406), 2 states have call predecessors, (5406), 2 states have return successors, (5406), 5406 states have call predecessors, (5406), 5406 states have call successors, (5406) [2023-11-29 05:31:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86774 states to 86774 states and 98799 transitions. [2023-11-29 05:31:46,708 INFO L78 Accepts]: Start accepts. Automaton has 86774 states and 98799 transitions. Word has length 575 [2023-11-29 05:31:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:46,709 INFO L495 AbstractCegarLoop]: Abstraction has 86774 states and 98799 transitions. [2023-11-29 05:31:46,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 14.68) internal successors, (367), 25 states have internal predecessors, (367), 23 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) [2023-11-29 05:31:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 86774 states and 98799 transitions. [2023-11-29 05:31:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2023-11-29 05:31:46,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:46,720 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 28, 28, 28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:46,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2023-11-29 05:31:46,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 05:31:46,920 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:31:46,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2109296053, now seen corresponding path program 30 times [2023-11-29 05:31:46,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:46,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321452958] [2023-11-29 05:31:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:46,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:46,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:46,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525510602] [2023-11-29 05:31:46,937 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:31:46,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:46,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:46,938 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:46,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 05:31:47,326 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2023-11-29 05:31:47,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:31:47,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 05:31:47,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 8570 backedges. 0 proven. 5202 refuted. 0 times theorem prover too weak. 3368 trivial. 0 not checked. [2023-11-29 05:31:48,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8570 backedges. 0 proven. 5202 refuted. 0 times theorem prover too weak. 3368 trivial. 0 not checked. [2023-11-29 05:31:51,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:51,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321452958] [2023-11-29 05:31:51,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:51,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525510602] [2023-11-29 05:31:51,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525510602] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:51,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:51,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2023-11-29 05:31:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058949604] [2023-11-29 05:31:51,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:51,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-29 05:31:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:51,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-29 05:31:51,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=855, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 05:31:51,294 INFO L87 Difference]: Start difference. First operand 86774 states and 98799 transitions. Second operand has 39 states, 38 states have (on average 13.31578947368421) internal successors, (506), 39 states have internal predecessors, (506), 34 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2023-11-29 05:32:01,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:01,829 INFO L93 Difference]: Finished difference Result 92871 states and 105802 transitions. [2023-11-29 05:32:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-29 05:32:01,830 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 13.31578947368421) internal successors, (506), 39 states have internal predecessors, (506), 34 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) Word has length 615 [2023-11-29 05:32:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:01,929 INFO L225 Difference]: With dead ends: 92871 [2023-11-29 05:32:01,929 INFO L226 Difference]: Without dead ends: 92870 [2023-11-29 05:32:01,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1261 GetRequests, 1191 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2139, Invalid=2973, Unknown=0, NotChecked=0, Total=5112 [2023-11-29 05:32:01,945 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 328 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:01,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 325 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:32:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92870 states. [2023-11-29 05:32:09,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92870 to 89817. [2023-11-29 05:32:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89817 states, 84215 states have (on average 1.082313127115122) internal successors, (91147), 84218 states have internal predecessors, (91147), 5596 states have call successors, (5596), 2 states have call predecessors, (5596), 2 states have return successors, (5596), 5596 states have call predecessors, (5596), 5596 states have call successors, (5596) [2023-11-29 05:32:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89817 states to 89817 states and 102339 transitions. [2023-11-29 05:32:09,685 INFO L78 Accepts]: Start accepts. Automaton has 89817 states and 102339 transitions. Word has length 615 [2023-11-29 05:32:09,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:09,686 INFO L495 AbstractCegarLoop]: Abstraction has 89817 states and 102339 transitions. [2023-11-29 05:32:09,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 13.31578947368421) internal successors, (506), 39 states have internal predecessors, (506), 34 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2023-11-29 05:32:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 89817 states and 102339 transitions. [2023-11-29 05:32:09,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2023-11-29 05:32:09,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:09,700 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:32:09,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 05:32:09,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:09,900 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:32:09,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:32:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash -336072686, now seen corresponding path program 8 times [2023-11-29 05:32:09,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:32:09,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074132246] [2023-11-29 05:32:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:09,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:32:09,922 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:32:09,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188592675] [2023-11-29 05:32:09,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:32:09,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:09,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:32:09,923 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:32:09,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 05:32:10,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:32:10,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:32:10,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 05:32:10,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 9339 backedges. 90 proven. 7475 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2023-11-29 05:32:11,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:32:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9339 backedges. 90 proven. 7475 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2023-11-29 05:32:13,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:13,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074132246] [2023-11-29 05:32:13,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:13,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188592675] [2023-11-29 05:32:13,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188592675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:32:13,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:32:13,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 70 [2023-11-29 05:32:13,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288641496] [2023-11-29 05:32:13,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:13,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-11-29 05:32:13,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:13,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-11-29 05:32:13,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2038, Invalid=2932, Unknown=0, NotChecked=0, Total=4970 [2023-11-29 05:32:13,102 INFO L87 Difference]: Start difference. First operand 89817 states and 102339 transitions. Second operand has 71 states, 70 states have (on average 13.628571428571428) internal successors, (954), 71 states have internal predecessors, (954), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-11-29 05:32:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:39,924 INFO L93 Difference]: Finished difference Result 153292 states and 174595 transitions. [2023-11-29 05:32:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2023-11-29 05:32:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 13.628571428571428) internal successors, (954), 71 states have internal predecessors, (954), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) Word has length 637 [2023-11-29 05:32:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:40,105 INFO L225 Difference]: With dead ends: 153292 [2023-11-29 05:32:40,105 INFO L226 Difference]: Without dead ends: 153291 [2023-11-29 05:32:40,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1203 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16496 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=17203, Invalid=34099, Unknown=0, NotChecked=0, Total=51302 [2023-11-29 05:32:40,128 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1551 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:40,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 243 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:32:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153291 states. [2023-11-29 05:32:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153291 to 152661. [2023-11-29 05:32:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152661 states, 143242 states have (on average 1.0548302872062663) internal successors, (151096), 143245 states have internal predecessors, (151096), 9413 states have call successors, (9413), 2 states have call predecessors, (9413), 2 states have return successors, (9413), 9413 states have call predecessors, (9413), 9413 states have call successors, (9413) [2023-11-29 05:32:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152661 states to 152661 states and 169922 transitions. [2023-11-29 05:32:59,802 INFO L78 Accepts]: Start accepts. Automaton has 152661 states and 169922 transitions. Word has length 637 [2023-11-29 05:32:59,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:59,802 INFO L495 AbstractCegarLoop]: Abstraction has 152661 states and 169922 transitions. [2023-11-29 05:32:59,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 13.628571428571428) internal successors, (954), 71 states have internal predecessors, (954), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-11-29 05:32:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 152661 states and 169922 transitions. [2023-11-29 05:32:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2023-11-29 05:32:59,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:59,822 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 28, 28, 28, 28, 28, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:32:59,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 05:33:00,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 05:33:00,022 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:33:00,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:00,023 INFO L85 PathProgramCache]: Analyzing trace with hash -723593528, now seen corresponding path program 31 times [2023-11-29 05:33:00,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:00,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884996670] [2023-11-29 05:33:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:00,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:00,049 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:00,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434190894] [2023-11-29 05:33:00,049 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:33:00,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:00,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:00,050 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:00,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 05:33:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:00,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 05:33:00,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11225 backedges. 0 proven. 7977 refuted. 0 times theorem prover too weak. 3248 trivial. 0 not checked. [2023-11-29 05:33:01,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:01,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:01,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884996670] [2023-11-29 05:33:01,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:01,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434190894] [2023-11-29 05:33:01,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434190894] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:01,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:33:01,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 05:33:01,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606717760] [2023-11-29 05:33:01,513 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:33:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:01,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:33:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:33:01,515 INFO L87 Difference]: Start difference. First operand 152661 states and 169922 transitions. Second operand has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 15 states have internal predecessors, (206), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-29 05:33:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:20,251 INFO L93 Difference]: Finished difference Result 152662 states and 169922 transitions. [2023-11-29 05:33:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:33:20,251 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 15 states have internal predecessors, (206), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 715 [2023-11-29 05:33:20,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:20,428 INFO L225 Difference]: With dead ends: 152662 [2023-11-29 05:33:20,428 INFO L226 Difference]: Without dead ends: 152661 [2023-11-29 05:33:20,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:33:20,453 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 27 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:20,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 504 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:33:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152661 states. [2023-11-29 05:33:39,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152661 to 152661. [2023-11-29 05:33:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152661 states, 143242 states have (on average 1.0548233060135994) internal successors, (151095), 143245 states have internal predecessors, (151095), 9413 states have call successors, (9413), 2 states have call predecessors, (9413), 2 states have return successors, (9413), 9413 states have call predecessors, (9413), 9413 states have call successors, (9413) [2023-11-29 05:33:40,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152661 states to 152661 states and 169921 transitions. [2023-11-29 05:33:40,184 INFO L78 Accepts]: Start accepts. Automaton has 152661 states and 169921 transitions. Word has length 715 [2023-11-29 05:33:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:40,185 INFO L495 AbstractCegarLoop]: Abstraction has 152661 states and 169921 transitions. [2023-11-29 05:33:40,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 15 states have internal predecessors, (206), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-29 05:33:40,185 INFO L276 IsEmpty]: Start isEmpty. Operand 152661 states and 169921 transitions. [2023-11-29 05:33:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2023-11-29 05:33:40,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:40,207 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:40,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 05:33:40,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 05:33:40,407 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:33:40,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:40,408 INFO L85 PathProgramCache]: Analyzing trace with hash -732872440, now seen corresponding path program 4 times [2023-11-29 05:33:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:40,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070725205] [2023-11-29 05:33:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:40,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:40,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:40,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476947978] [2023-11-29 05:33:40,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:33:40,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:40,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:40,602 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:40,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 05:33:40,790 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:33:40,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:40,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 05:33:40,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 14748 backedges. 0 proven. 11780 refuted. 0 times theorem prover too weak. 2968 trivial. 0 not checked. [2023-11-29 05:33:41,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14748 backedges. 0 proven. 11780 refuted. 0 times theorem prover too weak. 2968 trivial. 0 not checked. [2023-11-29 05:33:43,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:43,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070725205] [2023-11-29 05:33:43,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:43,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476947978] [2023-11-29 05:33:43,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476947978] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:43,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:43,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 79 [2023-11-29 05:33:43,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239523944] [2023-11-29 05:33:43,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:43,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2023-11-29 05:33:43,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:43,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2023-11-29 05:33:43,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2023-11-29 05:33:43,780 INFO L87 Difference]: Start difference. First operand 152661 states and 169921 transitions. Second operand has 80 states, 79 states have (on average 14.873417721518987) internal successors, (1175), 80 states have internal predecessors, (1175), 79 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 79 states have call predecessors, (80), 79 states have call successors, (80) [2023-11-29 05:34:47,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:47,132 INFO L93 Difference]: Finished difference Result 297230 states and 334077 transitions. [2023-11-29 05:34:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-11-29 05:34:47,133 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 14.873417721518987) internal successors, (1175), 80 states have internal predecessors, (1175), 79 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 79 states have call predecessors, (80), 79 states have call successors, (80) Word has length 790 [2023-11-29 05:34:47,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:47,533 INFO L225 Difference]: With dead ends: 297230 [2023-11-29 05:34:47,533 INFO L226 Difference]: Without dead ends: 297229 [2023-11-29 05:34:47,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1578 GetRequests, 1500 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2023-11-29 05:34:47,579 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 2106 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:47,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 1119 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 05:34:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297229 states. [2023-11-29 05:35:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297229 to 236461. [2023-11-29 05:35:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236461 states, 221802 states have (on average 1.067325813112596) internal successors, (236735), 221805 states have internal predecessors, (236735), 14653 states have call successors, (14653), 2 states have call predecessors, (14653), 2 states have return successors, (14653), 14653 states have call predecessors, (14653), 14653 states have call successors, (14653) [2023-11-29 05:35:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236461 states to 236461 states and 266041 transitions. [2023-11-29 05:35:15,282 INFO L78 Accepts]: Start accepts. Automaton has 236461 states and 266041 transitions. Word has length 790 [2023-11-29 05:35:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:35:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 236461 states and 266041 transitions. [2023-11-29 05:35:15,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 14.873417721518987) internal successors, (1175), 80 states have internal predecessors, (1175), 79 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 79 states have call predecessors, (80), 79 states have call successors, (80) [2023-11-29 05:35:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 236461 states and 266041 transitions. [2023-11-29 05:35:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2023-11-29 05:35:15,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:35:15,308 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 32, 32, 32, 32, 32, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:35:15,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 05:35:15,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 05:35:15,509 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:35:15,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:35:15,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1397284451, now seen corresponding path program 32 times [2023-11-29 05:35:15,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:35:15,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931303462] [2023-11-29 05:35:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:35:15,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:35:15,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:35:15,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925673551] [2023-11-29 05:35:15,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:35:15,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:35:15,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:35:15,725 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:35:15,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 05:35:15,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:35:15,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:35:15,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 05:35:15,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:35:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14700 backedges. 0 proven. 10568 refuted. 0 times theorem prover too weak. 4132 trivial. 0 not checked. [2023-11-29 05:35:17,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:35:17,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:35:17,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931303462] [2023-11-29 05:35:17,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:35:17,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925673551] [2023-11-29 05:35:17,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925673551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:35:17,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:35:17,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 05:35:17,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428982662] [2023-11-29 05:35:17,541 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:35:17,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:35:17,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:35:17,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:35:17,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:35:17,542 INFO L87 Difference]: Start difference. First operand 236461 states and 266041 transitions. Second operand has 16 states, 15 states have (on average 15.066666666666666) internal successors, (226), 16 states have internal predecessors, (226), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 05:35:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:35:42,671 INFO L93 Difference]: Finished difference Result 236462 states and 266041 transitions. [2023-11-29 05:35:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 05:35:42,672 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.066666666666666) internal successors, (226), 16 states have internal predecessors, (226), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 815 [2023-11-29 05:35:42,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:35:43,097 INFO L225 Difference]: With dead ends: 236462 [2023-11-29 05:35:43,097 INFO L226 Difference]: Without dead ends: 236461 [2023-11-29 05:35:43,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:35:43,121 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 27 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:35:43,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 442 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:35:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236461 states. [2023-11-29 05:36:09,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236461 to 236461. [2023-11-29 05:36:09,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236461 states, 221802 states have (on average 1.067321304586974) internal successors, (236734), 221805 states have internal predecessors, (236734), 14653 states have call successors, (14653), 2 states have call predecessors, (14653), 2 states have return successors, (14653), 14653 states have call predecessors, (14653), 14653 states have call successors, (14653) [2023-11-29 05:36:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236461 states to 236461 states and 266040 transitions. [2023-11-29 05:36:10,491 INFO L78 Accepts]: Start accepts. Automaton has 236461 states and 266040 transitions. Word has length 815 [2023-11-29 05:36:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:10,492 INFO L495 AbstractCegarLoop]: Abstraction has 236461 states and 266040 transitions. [2023-11-29 05:36:10,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.066666666666666) internal successors, (226), 16 states have internal predecessors, (226), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 05:36:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 236461 states and 266040 transitions. [2023-11-29 05:36:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2023-11-29 05:36:10,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:10,522 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 35, 35, 35, 35, 35, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:10,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2023-11-29 05:36:10,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:10,722 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:36:10,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash 106426609, now seen corresponding path program 33 times [2023-11-29 05:36:10,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:10,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301652474] [2023-11-29 05:36:10,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:10,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:10,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:10,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146107133] [2023-11-29 05:36:10,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:36:10,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:10,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:10,749 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:10,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 05:36:11,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 05:36:11,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:36:11,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-29 05:36:11,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 16370 backedges. 3684 proven. 281 refuted. 0 times theorem prover too weak. 12405 trivial. 0 not checked. [2023-11-29 05:36:20,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:21,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:21,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301652474] [2023-11-29 05:36:21,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146107133] [2023-11-29 05:36:21,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146107133] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:36:21,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:36:21,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-11-29 05:36:21,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993301295] [2023-11-29 05:36:21,788 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:21,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 05:36:21,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:21,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 05:36:21,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=709, Unknown=5, NotChecked=0, Total=812 [2023-11-29 05:36:21,790 INFO L87 Difference]: Start difference. First operand 236461 states and 266040 transitions. Second operand has 25 states, 24 states have (on average 5.625) internal successors, (135), 25 states have internal predecessors, (135), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 05:36:24,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:27,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:37,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:37:08,364 INFO L93 Difference]: Finished difference Result 239760 states and 269572 transitions. [2023-11-29 05:37:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-29 05:37:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.625) internal successors, (135), 25 states have internal predecessors, (135), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) Word has length 855 [2023-11-29 05:37:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:37:08,710 INFO L225 Difference]: With dead ends: 239760 [2023-11-29 05:37:08,710 INFO L226 Difference]: Without dead ends: 235346 [2023-11-29 05:37:08,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=425, Invalid=3352, Unknown=5, NotChecked=0, Total=3782 [2023-11-29 05:37:08,743 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 207 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 3160 mSolverCounterSat, 22 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 3188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3160 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:37:08,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 287 Invalid, 3188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3160 Invalid, 6 Unknown, 0 Unchecked, 17.1s Time] [2023-11-29 05:37:08,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235346 states. [2023-11-29 05:37:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235346 to 228844. [2023-11-29 05:37:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228844 states, 214661 states have (on average 1.067245563935694) internal successors, (229096), 214664 states have internal predecessors, (229096), 14177 states have call successors, (14177), 2 states have call predecessors, (14177), 2 states have return successors, (14177), 14177 states have call predecessors, (14177), 14177 states have call successors, (14177) [2023-11-29 05:37:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228844 states to 228844 states and 257450 transitions. [2023-11-29 05:37:35,665 INFO L78 Accepts]: Start accepts. Automaton has 228844 states and 257450 transitions. Word has length 855 [2023-11-29 05:37:35,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:37:35,665 INFO L495 AbstractCegarLoop]: Abstraction has 228844 states and 257450 transitions. [2023-11-29 05:37:35,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.625) internal successors, (135), 25 states have internal predecessors, (135), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 05:37:35,666 INFO L276 IsEmpty]: Start isEmpty. Operand 228844 states and 257450 transitions. [2023-11-29 05:37:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2023-11-29 05:37:35,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:37:35,691 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 28, 28, 28, 28, 28, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:37:35,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 05:37:35,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:37:35,891 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:37:35,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:37:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1244163465, now seen corresponding path program 34 times [2023-11-29 05:37:35,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:37:35,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612656136] [2023-11-29 05:37:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:37:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:37:35,922 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:37:35,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371182536] [2023-11-29 05:37:35,922 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:37:35,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:37:35,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:37:35,923 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:37:35,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 05:37:36,156 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:37:36,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:37:36,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:37:36,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:37:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 15782 backedges. 0 proven. 11814 refuted. 0 times theorem prover too weak. 3968 trivial. 0 not checked. [2023-11-29 05:37:38,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:37:38,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:37:38,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612656136] [2023-11-29 05:37:38,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:37:38,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371182536] [2023-11-29 05:37:38,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371182536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:37:38,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:37:38,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 05:37:38,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399475108] [2023-11-29 05:37:38,152 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:37:38,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 05:37:38,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:37:38,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 05:37:38,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=285, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:37:38,154 INFO L87 Difference]: Start difference. First operand 228844 states and 257450 transitions. Second operand has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:38:03,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:03,145 INFO L93 Difference]: Finished difference Result 228845 states and 257450 transitions. [2023-11-29 05:38:03,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 05:38:03,145 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 855 [2023-11-29 05:38:03,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:03,536 INFO L225 Difference]: With dead ends: 228845 [2023-11-29 05:38:03,536 INFO L226 Difference]: Without dead ends: 228844 [2023-11-29 05:38:03,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:38:03,558 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 23 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:03,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 379 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:38:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228844 states. [2023-11-29 05:38:29,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228844 to 228844. [2023-11-29 05:38:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228844 states, 214661 states have (on average 1.0672409054276277) internal successors, (229095), 214664 states have internal predecessors, (229095), 14177 states have call successors, (14177), 2 states have call predecessors, (14177), 2 states have return successors, (14177), 14177 states have call predecessors, (14177), 14177 states have call successors, (14177) [2023-11-29 05:38:30,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228844 states to 228844 states and 257449 transitions. [2023-11-29 05:38:30,341 INFO L78 Accepts]: Start accepts. Automaton has 228844 states and 257449 transitions. Word has length 855 [2023-11-29 05:38:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:30,341 INFO L495 AbstractCegarLoop]: Abstraction has 228844 states and 257449 transitions. [2023-11-29 05:38:30,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 16.63157894736842) internal successors, (316), 20 states have internal predecessors, (316), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 05:38:30,342 INFO L276 IsEmpty]: Start isEmpty. Operand 228844 states and 257449 transitions. [2023-11-29 05:38:30,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2023-11-29 05:38:30,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:38:30,590 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 41, 41, 41, 41, 41, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:38:30,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2023-11-29 05:38:30,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:38:30,790 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-29 05:38:30,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:38:30,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1985428199, now seen corresponding path program 35 times [2023-11-29 05:38:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:38:30,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149398985] [2023-11-29 05:38:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:38:30,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:38:30,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:38:30,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818359317] [2023-11-29 05:38:30,814 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:38:30,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:38:30,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:38:30,815 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:38:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f67154e-f755-45db-875c-036b5d6589cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 05:38:31,159 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 45 check-sat command(s) [2023-11-29 05:38:31,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:38:31,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:38:31,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:38:32,191 INFO L134 CoverageAnalysis]: Checked inductivity of 18564 backedges. 10134 proven. 4872 refuted. 0 times theorem prover too weak. 3558 trivial. 0 not checked. [2023-11-29 05:38:32,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 18564 backedges. 8454 proven. 4872 refuted. 0 times theorem prover too weak. 5238 trivial. 0 not checked. [2023-11-29 05:38:33,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:38:33,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149398985] [2023-11-29 05:38:33,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:38:33,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818359317] [2023-11-29 05:38:33,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818359317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:38:33,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:38:33,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 49 [2023-11-29 05:38:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060047766] [2023-11-29 05:38:33,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:38:33,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-29 05:38:33,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:38:33,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-29 05:38:33,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=1792, Unknown=0, NotChecked=0, Total=2352 [2023-11-29 05:38:33,014 INFO L87 Difference]: Start difference. First operand 228844 states and 257449 transitions. Second operand has 49 states, 49 states have (on average 14.387755102040817) internal successors, (705), 49 states have internal predecessors, (705), 47 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2023-11-29 05:39:10,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:10,000 INFO L93 Difference]: Finished difference Result 419964 states and 479443 transitions. [2023-11-29 05:39:10,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-29 05:39:10,000 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 14.387755102040817) internal successors, (705), 49 states have internal predecessors, (705), 47 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) Word has length 895 [2023-11-29 05:39:10,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:10,571 INFO L225 Difference]: With dead ends: 419964 [2023-11-29 05:39:10,571 INFO L226 Difference]: Without dead ends: 343917 [2023-11-29 05:39:10,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1820 GetRequests, 1726 SyntacticMatches, 15 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2142 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=5143, Unknown=0, NotChecked=0, Total=6480 [2023-11-29 05:39:10,643 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 514 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:10,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1970 Invalid, 3809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3791 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 05:39:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343917 states.