./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/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_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/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_0918d2a6-3ab6-4e43-be5a-3e622e258663/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 4da533f9027cb26869f2cd2349cd7115ebf62144e1d11b018683e8601f934a1d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:20:17,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:20:17,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:20:17,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:20:17,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:20:17,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:20:17,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:20:17,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:20:17,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:20:17,744 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:20:17,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:20:17,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:20:17,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:20:17,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:20:17,747 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:20:17,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:20:17,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:20:17,748 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:20:17,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:20:17,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:20:17,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:20:17,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:20:17,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:20:17,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:20:17,752 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:20:17,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:20:17,753 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:20:17,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:20:17,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:20:17,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:20:17,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:20:17,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:20:17,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:20:17,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:20:17,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:20:17,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:20:17,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:20:17,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:20:17,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:20:17,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:20:17,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:20:17,757 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:20:17,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:20:17,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:20:17,757 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_0918d2a6-3ab6-4e43-be5a-3e622e258663/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4da533f9027cb26869f2cd2349cd7115ebf62144e1d11b018683e8601f934a1d [2023-11-29 03:20:17,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:20:18,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:20:18,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:20:18,015 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:20:18,016 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:20:18,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound100.c [2023-11-29 03:20:20,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:20:21,104 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:20:21,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound100.c [2023-11-29 03:20:21,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/data/678067b84/22566436c2424536ae9e4321a6cf83cc/FLAGf0ddba584 [2023-11-29 03:20:21,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/data/678067b84/22566436c2424536ae9e4321a6cf83cc [2023-11-29 03:20:21,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:20:21,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:20:21,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:20:21,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:20:21,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:20:21,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264c0fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21, skipping insertion in model container [2023-11-29 03:20:21,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:20:21,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:20:21,342 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:20:21,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:20:21,375 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:20:21,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21 WrapperNode [2023-11-29 03:20:21,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:20:21,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:20:21,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:20:21,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:20:21,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,414 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-11-29 03:20:21,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:20:21,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:20:21,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:20:21,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:20:21,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,440 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:20:21,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:20:21,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:20:21,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:20:21,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:20:21,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (1/1) ... [2023-11-29 03:20:21,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:20:21,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:21,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:20:21,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:20:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:20:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:20:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:20:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:20:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:20:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:20:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:20:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:20:21,587 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:20:21,589 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:20:21,819 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:20:21,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:20:21,840 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:20:21,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:20:21 BoogieIcfgContainer [2023-11-29 03:20:21,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:20:21,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:20:21,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:20:21,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:20:21,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:20:21" (1/3) ... [2023-11-29 03:20:21,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b825def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:20:21, skipping insertion in model container [2023-11-29 03:20:21,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:20:21" (2/3) ... [2023-11-29 03:20:21,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b825def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:20:21, skipping insertion in model container [2023-11-29 03:20:21,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:20:21" (3/3) ... [2023-11-29 03:20:21,851 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound100.c [2023-11-29 03:20:21,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:20:21,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 03:20:21,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:20:21,915 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;@7c2fa8c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:20:21,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-29 03:20:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:20:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:20:21,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:21,928 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:21,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:21,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1812025852, now seen corresponding path program 1 times [2023-11-29 03:20:21,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:21,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625383432] [2023-11-29 03:20:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:21,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:22,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:22,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625383432] [2023-11-29 03:20:22,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:20:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987957667] [2023-11-29 03:20:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:22,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:22,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:22,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:22,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:20:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:22,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:20:22,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:20:22,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:22,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987957667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:22,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:22,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:20:22,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297149872] [2023-11-29 03:20:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:22,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:20:22,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:22,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:20:22,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:20:22,237 INFO L87 Difference]: Start difference. First operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:20:22,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:22,270 INFO L93 Difference]: Finished difference Result 172 states and 211 transitions. [2023-11-29 03:20:22,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:20:22,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 03:20:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:22,279 INFO L225 Difference]: With dead ends: 172 [2023-11-29 03:20:22,280 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 03:20:22,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:20:22,287 INFO L413 NwaCegarLoop]: 94 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, 94 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:22,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:20:22,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 03:20:22,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 03:20:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 72 states have internal predecessors, (74), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:20:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-11-29 03:20:22,331 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 20 [2023-11-29 03:20:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:22,331 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-11-29 03:20:22,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:20:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-11-29 03:20:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:20:22,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:22,333 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:22,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:22,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:20:22,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:22,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:22,537 INFO L85 PathProgramCache]: Analyzing trace with hash 982000830, now seen corresponding path program 1 times [2023-11-29 03:20:22,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:22,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207489693] [2023-11-29 03:20:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:22,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:22,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983700697] [2023-11-29 03:20:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:22,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:22,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:22,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:22,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:20:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:22,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:20:22,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:20:22,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:22,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:22,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207489693] [2023-11-29 03:20:22,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:22,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983700697] [2023-11-29 03:20:22,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983700697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:22,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:22,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:20:22,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854926540] [2023-11-29 03:20:22,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:22,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:20:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:22,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:20:22,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:20:22,737 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:20:22,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:22,916 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2023-11-29 03:20:22,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:20:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 03:20:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:22,918 INFO L225 Difference]: With dead ends: 84 [2023-11-29 03:20:22,918 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 03:20:22,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 03:20:22,920 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 116 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:22,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 132 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 03:20:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 03:20:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 66 states have internal predecessors, (68), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:20:22,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2023-11-29 03:20:22,932 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 20 [2023-11-29 03:20:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:22,934 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2023-11-29 03:20:22,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:20:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2023-11-29 03:20:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:20:22,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:22,935 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:22,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:23,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:23,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:23,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:23,141 INFO L85 PathProgramCache]: Analyzing trace with hash 377254708, now seen corresponding path program 1 times [2023-11-29 03:20:23,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:23,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173102949] [2023-11-29 03:20:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:23,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:23,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58672585] [2023-11-29 03:20:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:23,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:23,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:23,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:23,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:20:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:23,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:20:23,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:20:23,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:23,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:23,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173102949] [2023-11-29 03:20:23,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:23,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58672585] [2023-11-29 03:20:23,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58672585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:23,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:23,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:20:23,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300032434] [2023-11-29 03:20:23,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:23,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:20:23,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:23,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:20:23,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:20:23,298 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:20:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:23,483 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2023-11-29 03:20:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:20:23,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-29 03:20:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:23,485 INFO L225 Difference]: With dead ends: 101 [2023-11-29 03:20:23,485 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 03:20:23,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 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 03:20:23,487 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 156 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:23,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 155 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:23,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 03:20:23,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2023-11-29 03:20:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 69 states have internal predecessors, (71), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:20:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2023-11-29 03:20:23,500 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 21 [2023-11-29 03:20:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:23,501 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2023-11-29 03:20:23,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:20:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2023-11-29 03:20:23,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:20:23,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:23,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:23,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:20:23,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:23,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:23,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1646507377, now seen corresponding path program 1 times [2023-11-29 03:20:23,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:23,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403580490] [2023-11-29 03:20:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:23,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:23,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954440419] [2023-11-29 03:20:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:23,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:23,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:23,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:23,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:20:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:23,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:20:23,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:20:23,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:23,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:23,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403580490] [2023-11-29 03:20:23,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:23,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954440419] [2023-11-29 03:20:23,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954440419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:23,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:23,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:20:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148984036] [2023-11-29 03:20:23,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:23,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:20:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:23,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:20:23,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:20:23,870 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:20:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:24,074 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2023-11-29 03:20:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:20:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2023-11-29 03:20:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:24,077 INFO L225 Difference]: With dead ends: 138 [2023-11-29 03:20:24,077 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:20:24,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 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 03:20:24,078 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 221 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:24,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 146 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:20:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2023-11-29 03:20:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.5714285714285714) internal successors, (110), 93 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:20:24,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 140 transitions. [2023-11-29 03:20:24,096 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 140 transitions. Word has length 27 [2023-11-29 03:20:24,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:24,096 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 140 transitions. [2023-11-29 03:20:24,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:20:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 140 transitions. [2023-11-29 03:20:24,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:20:24,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:24,098 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:24,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:20:24,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:24,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:24,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash 497878920, now seen corresponding path program 1 times [2023-11-29 03:20:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692001498] [2023-11-29 03:20:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:24,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:24,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:24,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162324737] [2023-11-29 03:20:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:24,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:24,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:24,319 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:24,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:20:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:24,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:20:24,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:20:24,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:24,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:24,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692001498] [2023-11-29 03:20:24,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:24,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162324737] [2023-11-29 03:20:24,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162324737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:24,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:24,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:20:24,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225799129] [2023-11-29 03:20:24,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:24,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:20:24,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:24,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:20:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:20:24,476 INFO L87 Difference]: Start difference. First operand 111 states and 140 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:20:24,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:24,654 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2023-11-29 03:20:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:20:24,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-29 03:20:24,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:24,656 INFO L225 Difference]: With dead ends: 138 [2023-11-29 03:20:24,656 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:20:24,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 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 03:20:24,657 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 156 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:24,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 160 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:24,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:20:24,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 112. [2023-11-29 03:20:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:20:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2023-11-29 03:20:24,672 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 28 [2023-11-29 03:20:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:24,672 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2023-11-29 03:20:24,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:20:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2023-11-29 03:20:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:20:24,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:24,674 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:24,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:20:24,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:24,879 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:24,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1745622607, now seen corresponding path program 1 times [2023-11-29 03:20:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:24,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842691630] [2023-11-29 03:20:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:24,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:24,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595307125] [2023-11-29 03:20:24,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:24,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:24,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:24,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:24,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:20:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:24,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:20:24,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:20:25,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:20:25,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:25,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842691630] [2023-11-29 03:20:25,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:25,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595307125] [2023-11-29 03:20:25,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595307125] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:20:25,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:20:25,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 03:20:25,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292005367] [2023-11-29 03:20:25,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:25,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:20:25,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:25,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:20:25,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:25,150 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 03:20:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:25,453 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2023-11-29 03:20:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:20:25,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 29 [2023-11-29 03:20:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:25,455 INFO L225 Difference]: With dead ends: 129 [2023-11-29 03:20:25,455 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:20:25,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:20:25,457 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 292 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:25,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 251 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:20:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 110. [2023-11-29 03:20:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 92 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:20:25,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2023-11-29 03:20:25,472 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 29 [2023-11-29 03:20:25,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:25,473 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2023-11-29 03:20:25,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 03:20:25,473 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2023-11-29 03:20:25,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:20:25,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:25,474 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:25,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:20:25,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:25,676 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:25,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:25,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1720274090, now seen corresponding path program 1 times [2023-11-29 03:20:25,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:25,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262850812] [2023-11-29 03:20:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:25,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:25,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:25,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077127222] [2023-11-29 03:20:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:25,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:25,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:25,691 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:25,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:20:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:25,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:20:25,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:20:25,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:25,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:25,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262850812] [2023-11-29 03:20:25,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:25,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077127222] [2023-11-29 03:20:25,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077127222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:25,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:25,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:20:25,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701901919] [2023-11-29 03:20:25,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:25,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:20:25,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:25,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:20:25,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:20:25,892 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 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 03:20:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:26,136 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2023-11-29 03:20:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:20:26,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2023-11-29 03:20:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:26,138 INFO L225 Difference]: With dead ends: 126 [2023-11-29 03:20:26,138 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 03:20:26,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:26,139 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:26,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 159 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 03:20:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2023-11-29 03:20:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 90 states have internal predecessors, (100), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:20:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2023-11-29 03:20:26,155 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 30 [2023-11-29 03:20:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:26,155 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2023-11-29 03:20:26,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 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 03:20:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2023-11-29 03:20:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:20:26,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:26,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:26,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:20:26,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:26,358 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:26,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:26,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705951, now seen corresponding path program 1 times [2023-11-29 03:20:26,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:26,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369552779] [2023-11-29 03:20:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:26,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:26,372 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:26,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493529197] [2023-11-29 03:20:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:26,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:26,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:26,374 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:26,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:20:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:26,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:20:26,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:20:26,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:20:26,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369552779] [2023-11-29 03:20:26,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493529197] [2023-11-29 03:20:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493529197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:20:26,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:20:26,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 03:20:26,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573169967] [2023-11-29 03:20:26,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:26,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:20:26,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:26,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:20:26,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:20:26,637 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 03:20:27,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:27,086 INFO L93 Difference]: Finished difference Result 216 states and 249 transitions. [2023-11-29 03:20:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:20:27,087 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 39 [2023-11-29 03:20:27,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:27,089 INFO L225 Difference]: With dead ends: 216 [2023-11-29 03:20:27,089 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 03:20:27,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:20:27,090 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 732 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:27,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 193 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:20:27,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 03:20:27,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 171. [2023-11-29 03:20:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 123 states have (on average 1.4227642276422765) internal successors, (175), 143 states have internal predecessors, (175), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 03:20:27,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 225 transitions. [2023-11-29 03:20:27,110 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 225 transitions. Word has length 39 [2023-11-29 03:20:27,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:27,110 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 225 transitions. [2023-11-29 03:20:27,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 03:20:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 225 transitions. [2023-11-29 03:20:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:20:27,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:27,113 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:27,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:20:27,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:27,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:27,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:27,316 INFO L85 PathProgramCache]: Analyzing trace with hash -221741680, now seen corresponding path program 1 times [2023-11-29 03:20:27,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:27,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676518824] [2023-11-29 03:20:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:27,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:27,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255089600] [2023-11-29 03:20:27,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:27,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:27,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:27,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:27,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:20:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:27,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:20:27,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:20:27,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:27,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:27,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676518824] [2023-11-29 03:20:27,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:27,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255089600] [2023-11-29 03:20:27,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255089600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:27,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:27,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:27,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911103937] [2023-11-29 03:20:27,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:27,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:20:27,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:27,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:20:27,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:27,437 INFO L87 Difference]: Start difference. First operand 171 states and 225 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:27,584 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2023-11-29 03:20:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:20:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-11-29 03:20:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:27,587 INFO L225 Difference]: With dead ends: 229 [2023-11-29 03:20:27,587 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 03:20:27,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:20:27,589 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:27,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 88 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:27,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 03:20:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2023-11-29 03:20:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 160 states have internal predecessors, (195), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:20:27,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 253 transitions. [2023-11-29 03:20:27,615 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 253 transitions. Word has length 59 [2023-11-29 03:20:27,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:27,616 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 253 transitions. [2023-11-29 03:20:27,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:27,616 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 253 transitions. [2023-11-29 03:20:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:20:27,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:27,617 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:27,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:27,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:27,818 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:27,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1715942605, now seen corresponding path program 1 times [2023-11-29 03:20:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:27,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598957749] [2023-11-29 03:20:27,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:27,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:27,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081014292] [2023-11-29 03:20:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:27,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:27,835 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:27,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:20:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:27,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:20:27,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:27,934 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:20:27,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:27,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:27,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598957749] [2023-11-29 03:20:27,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:27,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081014292] [2023-11-29 03:20:27,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081014292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:27,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:27,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:27,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496706903] [2023-11-29 03:20:27,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:27,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:20:27,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:27,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:20:27,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:27,936 INFO L87 Difference]: Start difference. First operand 192 states and 253 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:28,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:28,066 INFO L93 Difference]: Finished difference Result 229 states and 286 transitions. [2023-11-29 03:20:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:20:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-11-29 03:20:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:28,069 INFO L225 Difference]: With dead ends: 229 [2023-11-29 03:20:28,069 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 03:20:28,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:20:28,070 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 132 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:28,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 90 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 03:20:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2023-11-29 03:20:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 161 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:20:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2023-11-29 03:20:28,094 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 60 [2023-11-29 03:20:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:28,095 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2023-11-29 03:20:28,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2023-11-29 03:20:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:20:28,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:28,096 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:28,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:28,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:20:28,298 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:28,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:28,299 INFO L85 PathProgramCache]: Analyzing trace with hash -246595163, now seen corresponding path program 1 times [2023-11-29 03:20:28,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:28,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265398986] [2023-11-29 03:20:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:28,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:28,313 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:28,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859643408] [2023-11-29 03:20:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:28,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:28,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:28,316 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:28,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:20:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:28,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:20:28,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:20:28,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:28,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:28,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265398986] [2023-11-29 03:20:28,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:28,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859643408] [2023-11-29 03:20:28,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859643408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:28,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:28,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:20:28,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442379775] [2023-11-29 03:20:28,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:28,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:20:28,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:20:28,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:20:28,412 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:20:28,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:28,473 INFO L93 Difference]: Finished difference Result 201 states and 253 transitions. [2023-11-29 03:20:28,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:20:28,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-11-29 03:20:28,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:28,476 INFO L225 Difference]: With dead ends: 201 [2023-11-29 03:20:28,476 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 03:20:28,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:20:28,477 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:28,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:20:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 03:20:28,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 194. [2023-11-29 03:20:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 142 states have (on average 1.3450704225352113) internal successors, (191), 162 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:20:28,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 249 transitions. [2023-11-29 03:20:28,501 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 249 transitions. Word has length 62 [2023-11-29 03:20:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:28,502 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 249 transitions. [2023-11-29 03:20:28,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:20:28,502 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 249 transitions. [2023-11-29 03:20:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:20:28,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:28,503 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:28,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:20:28,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:20:28,709 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:28,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:28,709 INFO L85 PathProgramCache]: Analyzing trace with hash 945484661, now seen corresponding path program 1 times [2023-11-29 03:20:28,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:28,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543533673] [2023-11-29 03:20:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:28,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:28,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:28,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1187250468] [2023-11-29 03:20:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:28,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:28,725 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:28,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:20:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:28,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:20:28,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:20:28,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:28,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543533673] [2023-11-29 03:20:28,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187250468] [2023-11-29 03:20:28,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187250468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:28,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:28,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:20:28,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989588304] [2023-11-29 03:20:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:28,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:20:28,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:20:28,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:20:28,842 INFO L87 Difference]: Start difference. First operand 194 states and 249 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:20:28,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:28,931 INFO L93 Difference]: Finished difference Result 194 states and 249 transitions. [2023-11-29 03:20:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:20:28,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-11-29 03:20:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:28,933 INFO L225 Difference]: With dead ends: 194 [2023-11-29 03:20:28,933 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:20:28,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:20:28,934 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:28,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 129 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:20:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-29 03:20:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3309859154929577) internal successors, (189), 161 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:20:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2023-11-29 03:20:28,958 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 63 [2023-11-29 03:20:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:28,958 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2023-11-29 03:20:28,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:20:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2023-11-29 03:20:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:20:28,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:28,960 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:28,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:20:29,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:20:29,166 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:29,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash -754746457, now seen corresponding path program 1 times [2023-11-29 03:20:29,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:29,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604132134] [2023-11-29 03:20:29,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:29,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:29,178 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:29,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191074271] [2023-11-29 03:20:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:29,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:29,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:29,180 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:29,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:20:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:29,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:20:29,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:20:29,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604132134] [2023-11-29 03:20:29,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191074271] [2023-11-29 03:20:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191074271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:29,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:29,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651678985] [2023-11-29 03:20:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:29,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:20:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:20:29,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:29,314 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:29,389 INFO L93 Difference]: Finished difference Result 193 states and 247 transitions. [2023-11-29 03:20:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:20:29,389 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-11-29 03:20:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:29,391 INFO L225 Difference]: With dead ends: 193 [2023-11-29 03:20:29,391 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:20:29,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:29,392 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:29,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 96 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:20:29,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 03:20:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 142 states have (on average 1.3169014084507042) internal successors, (187), 160 states have internal predecessors, (187), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:20:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 245 transitions. [2023-11-29 03:20:29,417 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 245 transitions. Word has length 64 [2023-11-29 03:20:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:29,418 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 245 transitions. [2023-11-29 03:20:29,418 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 245 transitions. [2023-11-29 03:20:29,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:20:29,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:29,419 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:29,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:20:29,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:29,620 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:29,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1922303561, now seen corresponding path program 1 times [2023-11-29 03:20:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036549685] [2023-11-29 03:20:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:29,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:29,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307925574] [2023-11-29 03:20:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:29,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:29,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:29,633 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:29,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:20:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:29,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:20:29,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:20:29,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:29,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:29,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036549685] [2023-11-29 03:20:29,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:29,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307925574] [2023-11-29 03:20:29,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307925574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:29,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:29,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:29,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808195960] [2023-11-29 03:20:29,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:29,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:20:29,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:29,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:20:29,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:29,764 INFO L87 Difference]: Start difference. First operand 192 states and 245 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:29,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:29,865 INFO L93 Difference]: Finished difference Result 210 states and 256 transitions. [2023-11-29 03:20:29,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:20:29,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2023-11-29 03:20:29,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:29,867 INFO L225 Difference]: With dead ends: 210 [2023-11-29 03:20:29,867 INFO L226 Difference]: Without dead ends: 209 [2023-11-29 03:20:29,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:29,868 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 45 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:29,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:29,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-29 03:20:29,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 196. [2023-11-29 03:20:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 164 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:20:29,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 249 transitions. [2023-11-29 03:20:29,898 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 249 transitions. Word has length 65 [2023-11-29 03:20:29,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:29,898 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 249 transitions. [2023-11-29 03:20:29,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:20:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 249 transitions. [2023-11-29 03:20:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:20:29,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:29,900 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:29,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:20:30,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:30,100 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:30,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash 116785460, now seen corresponding path program 1 times [2023-11-29 03:20:30,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:30,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729863784] [2023-11-29 03:20:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:30,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:30,111 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:30,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167677211] [2023-11-29 03:20:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:30,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:30,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:30,113 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:30,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:20:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:30,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:20:30,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:20:30,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:30,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:30,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729863784] [2023-11-29 03:20:30,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:30,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167677211] [2023-11-29 03:20:30,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167677211] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:30,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:30,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:20:30,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309213318] [2023-11-29 03:20:30,619 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:30,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:20:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:30,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:20:30,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:30,621 INFO L87 Difference]: Start difference. First operand 196 states and 249 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:20:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:31,113 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2023-11-29 03:20:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:20:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 74 [2023-11-29 03:20:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:31,116 INFO L225 Difference]: With dead ends: 288 [2023-11-29 03:20:31,116 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 03:20:31,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:20:31,117 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 297 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:31,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 310 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:20:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 03:20:31,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 256. [2023-11-29 03:20:31,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 214 states have internal predecessors, (260), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 03:20:31,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 338 transitions. [2023-11-29 03:20:31,147 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 338 transitions. Word has length 74 [2023-11-29 03:20:31,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:31,147 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 338 transitions. [2023-11-29 03:20:31,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:20:31,148 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 338 transitions. [2023-11-29 03:20:31,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:20:31,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:31,149 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:31,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:20:31,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:20:31,349 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:31,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:31,350 INFO L85 PathProgramCache]: Analyzing trace with hash -674617981, now seen corresponding path program 1 times [2023-11-29 03:20:31,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:31,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909815003] [2023-11-29 03:20:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:31,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:31,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:31,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856205302] [2023-11-29 03:20:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:31,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:31,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:31,363 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:31,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:20:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:31,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:20:31,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:20:31,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909815003] [2023-11-29 03:20:31,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856205302] [2023-11-29 03:20:31,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856205302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:31,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:31,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:20:31,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871906504] [2023-11-29 03:20:31,807 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:31,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:20:31,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:20:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:31,809 INFO L87 Difference]: Start difference. First operand 256 states and 338 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:20:32,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:32,153 INFO L93 Difference]: Finished difference Result 351 states and 441 transitions. [2023-11-29 03:20:32,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:20:32,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2023-11-29 03:20:32,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:32,156 INFO L225 Difference]: With dead ends: 351 [2023-11-29 03:20:32,156 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 03:20:32,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:20:32,157 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:32,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 300 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 03:20:32,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 315. [2023-11-29 03:20:32,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 263 states have internal predecessors, (323), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 03:20:32,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 421 transitions. [2023-11-29 03:20:32,184 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 421 transitions. Word has length 75 [2023-11-29 03:20:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:32,185 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 421 transitions. [2023-11-29 03:20:32,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:20:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 421 transitions. [2023-11-29 03:20:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 03:20:32,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:32,186 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:32,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:20:32,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:20:32,386 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:32,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:32,387 INFO L85 PathProgramCache]: Analyzing trace with hash 561679126, now seen corresponding path program 1 times [2023-11-29 03:20:32,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:32,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698130479] [2023-11-29 03:20:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:32,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:32,396 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:32,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724672832] [2023-11-29 03:20:32,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:32,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:32,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:32,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:32,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:20:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:32,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:20:32,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 03:20:32,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:32,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:32,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698130479] [2023-11-29 03:20:32,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:32,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724672832] [2023-11-29 03:20:32,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724672832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:32,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:32,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:20:32,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686350249] [2023-11-29 03:20:32,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:32,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:20:32,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:32,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:20:32,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:20:32,531 INFO L87 Difference]: Start difference. First operand 315 states and 421 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 03:20:32,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:32,814 INFO L93 Difference]: Finished difference Result 475 states and 621 transitions. [2023-11-29 03:20:32,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:20:32,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-11-29 03:20:32,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:32,818 INFO L225 Difference]: With dead ends: 475 [2023-11-29 03:20:32,818 INFO L226 Difference]: Without dead ends: 472 [2023-11-29 03:20:32,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:20:32,819 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 144 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:32,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 176 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-29 03:20:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 382. [2023-11-29 03:20:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 319 states have internal predecessors, (399), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 03:20:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 519 transitions. [2023-11-29 03:20:32,865 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 519 transitions. Word has length 76 [2023-11-29 03:20:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:32,865 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 519 transitions. [2023-11-29 03:20:32,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 03:20:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 519 transitions. [2023-11-29 03:20:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 03:20:32,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:32,866 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:32,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:20:33,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:20:33,067 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:33,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash 232183781, now seen corresponding path program 1 times [2023-11-29 03:20:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:33,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098975495] [2023-11-29 03:20:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:33,074 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:33,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21734412] [2023-11-29 03:20:33,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:33,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:33,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:33,075 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:33,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:20:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:33,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:20:33,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:20:33,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:37,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:37,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098975495] [2023-11-29 03:20:37,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21734412] [2023-11-29 03:20:37,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21734412] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:37,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:37,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:20:37,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715233922] [2023-11-29 03:20:37,529 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:37,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:20:37,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:37,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:20:37,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2023-11-29 03:20:37,531 INFO L87 Difference]: Start difference. First operand 382 states and 519 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:20:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:37,949 INFO L93 Difference]: Finished difference Result 409 states and 529 transitions. [2023-11-29 03:20:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:20:37,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 77 [2023-11-29 03:20:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:37,952 INFO L225 Difference]: With dead ends: 409 [2023-11-29 03:20:37,952 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 03:20:37,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=61, Invalid=244, Unknown=1, NotChecked=0, Total=306 [2023-11-29 03:20:37,953 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 224 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:37,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 346 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:20:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 03:20:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 380. [2023-11-29 03:20:37,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 299 states have (on average 1.31438127090301) internal successors, (393), 317 states have internal predecessors, (393), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 03:20:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 513 transitions. [2023-11-29 03:20:37,986 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 513 transitions. Word has length 77 [2023-11-29 03:20:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:37,987 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 513 transitions. [2023-11-29 03:20:37,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:20:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 513 transitions. [2023-11-29 03:20:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 03:20:37,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:37,988 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:37,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:20:38,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:20:38,189 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:38,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash 742198340, now seen corresponding path program 1 times [2023-11-29 03:20:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:38,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615242729] [2023-11-29 03:20:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:38,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:38,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:38,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903843121] [2023-11-29 03:20:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:38,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:38,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:38,202 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:38,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:20:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:38,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:20:38,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:38,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:38,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615242729] [2023-11-29 03:20:38,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:38,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903843121] [2023-11-29 03:20:38,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903843121] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:20:38,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:20:38,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:20:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349720001] [2023-11-29 03:20:38,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:38,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:20:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:38,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:20:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:20:38,427 INFO L87 Difference]: Start difference. First operand 380 states and 513 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:20:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:38,914 INFO L93 Difference]: Finished difference Result 768 states and 1061 transitions. [2023-11-29 03:20:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:20:38,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 97 [2023-11-29 03:20:38,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:38,919 INFO L225 Difference]: With dead ends: 768 [2023-11-29 03:20:38,919 INFO L226 Difference]: Without dead ends: 766 [2023-11-29 03:20:38,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:38,920 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 343 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:38,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 265 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:20:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-29 03:20:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 648. [2023-11-29 03:20:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 513 states have (on average 1.3372319688109162) internal successors, (686), 530 states have internal predecessors, (686), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 03:20:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 916 transitions. [2023-11-29 03:20:38,996 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 916 transitions. Word has length 97 [2023-11-29 03:20:38,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:38,997 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 916 transitions. [2023-11-29 03:20:38,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:20:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 916 transitions. [2023-11-29 03:20:38,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 03:20:38,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:38,998 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:39,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:20:39,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:39,199 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:39,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1533312153, now seen corresponding path program 1 times [2023-11-29 03:20:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:39,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136625122] [2023-11-29 03:20:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:39,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:39,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565980173] [2023-11-29 03:20:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:39,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:39,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:39,210 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:39,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:20:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:39,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:20:39,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:39,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:39,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136625122] [2023-11-29 03:20:39,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565980173] [2023-11-29 03:20:39,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565980173] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:20:39,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:20:39,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:20:39,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651762067] [2023-11-29 03:20:39,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:39,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:20:39,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:20:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:20:39,453 INFO L87 Difference]: Start difference. First operand 648 states and 916 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:20:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:40,189 INFO L93 Difference]: Finished difference Result 772 states and 1041 transitions. [2023-11-29 03:20:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:20:40,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 98 [2023-11-29 03:20:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:40,193 INFO L225 Difference]: With dead ends: 772 [2023-11-29 03:20:40,193 INFO L226 Difference]: Without dead ends: 770 [2023-11-29 03:20:40,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:40,194 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 256 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:40,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 268 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:20:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-29 03:20:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 652. [2023-11-29 03:20:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 518 states have (on average 1.2857142857142858) internal successors, (666), 534 states have internal predecessors, (666), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 03:20:40,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 896 transitions. [2023-11-29 03:20:40,287 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 896 transitions. Word has length 98 [2023-11-29 03:20:40,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:40,288 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 896 transitions. [2023-11-29 03:20:40,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:20:40,288 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 896 transitions. [2023-11-29 03:20:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 03:20:40,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:40,289 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:40,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:20:40,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:40,490 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:40,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash 339199601, now seen corresponding path program 1 times [2023-11-29 03:20:40,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:40,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029009009] [2023-11-29 03:20:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:40,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:40,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:40,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456516279] [2023-11-29 03:20:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:40,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:40,502 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:40,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:20:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:40,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:20:40,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:40,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:40,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029009009] [2023-11-29 03:20:40,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456516279] [2023-11-29 03:20:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456516279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:40,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:40,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379659330] [2023-11-29 03:20:40,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:40,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:20:40,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:20:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:20:40,621 INFO L87 Difference]: Start difference. First operand 652 states and 896 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:20:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:40,763 INFO L93 Difference]: Finished difference Result 657 states and 896 transitions. [2023-11-29 03:20:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:20:40,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-11-29 03:20:40,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:40,767 INFO L225 Difference]: With dead ends: 657 [2023-11-29 03:20:40,767 INFO L226 Difference]: Without dead ends: 656 [2023-11-29 03:20:40,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:20:40,769 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 208 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:20:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2023-11-29 03:20:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 651. [2023-11-29 03:20:40,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 518 states have (on average 1.281853281853282) internal successors, (664), 533 states have internal predecessors, (664), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 03:20:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 894 transitions. [2023-11-29 03:20:40,862 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 894 transitions. Word has length 100 [2023-11-29 03:20:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:40,863 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 894 transitions. [2023-11-29 03:20:40,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:20:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 894 transitions. [2023-11-29 03:20:40,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:20:40,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:40,864 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:40,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:20:41,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:41,065 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:41,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash -962612885, now seen corresponding path program 1 times [2023-11-29 03:20:41,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:41,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578698606] [2023-11-29 03:20:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:41,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:41,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669927511] [2023-11-29 03:20:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:41,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:41,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:41,078 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:41,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:20:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:41,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:20:41,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:41,284 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:20:41,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:41,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578698606] [2023-11-29 03:20:41,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:41,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669927511] [2023-11-29 03:20:41,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669927511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:20:41,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:20:41,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:20:41,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527044674] [2023-11-29 03:20:41,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:41,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:20:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:41,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:20:41,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:20:41,408 INFO L87 Difference]: Start difference. First operand 651 states and 894 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 03:20:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:42,770 INFO L93 Difference]: Finished difference Result 888 states and 1173 transitions. [2023-11-29 03:20:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:20:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 103 [2023-11-29 03:20:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:42,775 INFO L225 Difference]: With dead ends: 888 [2023-11-29 03:20:42,775 INFO L226 Difference]: Without dead ends: 886 [2023-11-29 03:20:42,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:42,795 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 299 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:42,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 236 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:20:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2023-11-29 03:20:42,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 716. [2023-11-29 03:20:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 574 states have (on average 1.2804878048780488) internal successors, (735), 589 states have internal predecessors, (735), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 03:20:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 983 transitions. [2023-11-29 03:20:42,914 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 983 transitions. Word has length 103 [2023-11-29 03:20:42,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:42,915 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 983 transitions. [2023-11-29 03:20:42,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 03:20:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 983 transitions. [2023-11-29 03:20:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:20:42,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:42,917 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:42,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:20:43,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:43,122 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:43,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:43,123 INFO L85 PathProgramCache]: Analyzing trace with hash -961381523, now seen corresponding path program 1 times [2023-11-29 03:20:43,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:43,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915450845] [2023-11-29 03:20:43,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:43,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:43,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:43,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036461164] [2023-11-29 03:20:43,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:43,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:43,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:43,136 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:43,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:20:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:43,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:20:43,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:20:43,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:20:43,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:43,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915450845] [2023-11-29 03:20:43,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:43,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036461164] [2023-11-29 03:20:43,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036461164] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:20:43,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:20:43,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 03:20:43,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009816333] [2023-11-29 03:20:43,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:43,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:20:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:43,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:20:43,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:20:43,358 INFO L87 Difference]: Start difference. First operand 716 states and 983 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 03:20:43,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:43,616 INFO L93 Difference]: Finished difference Result 718 states and 985 transitions. [2023-11-29 03:20:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:20:43,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 103 [2023-11-29 03:20:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:43,620 INFO L225 Difference]: With dead ends: 718 [2023-11-29 03:20:43,620 INFO L226 Difference]: Without dead ends: 717 [2023-11-29 03:20:43,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:43,620 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:43,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 73 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:43,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-29 03:20:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 715. [2023-11-29 03:20:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 574 states have (on average 1.2473867595818815) internal successors, (716), 588 states have internal predecessors, (716), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 03:20:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 964 transitions. [2023-11-29 03:20:43,729 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 964 transitions. Word has length 103 [2023-11-29 03:20:43,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:43,730 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 964 transitions. [2023-11-29 03:20:43,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 03:20:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 964 transitions. [2023-11-29 03:20:43,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:20:43,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:43,731 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:43,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:20:43,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:43,932 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:43,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:43,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1163676672, now seen corresponding path program 1 times [2023-11-29 03:20:43,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:43,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12773288] [2023-11-29 03:20:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:43,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:43,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:43,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888131964] [2023-11-29 03:20:43,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:43,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:43,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:43,942 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:43,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:20:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:44,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:20:44,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:20:44,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:44,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12773288] [2023-11-29 03:20:44,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888131964] [2023-11-29 03:20:44,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888131964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:44,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:44,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:20:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024239233] [2023-11-29 03:20:44,718 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:44,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:20:44,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:44,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:20:44,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:20:44,719 INFO L87 Difference]: Start difference. First operand 715 states and 964 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:20:46,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:46,111 INFO L93 Difference]: Finished difference Result 1272 states and 1707 transitions. [2023-11-29 03:20:46,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:20:46,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 112 [2023-11-29 03:20:46,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:46,117 INFO L225 Difference]: With dead ends: 1272 [2023-11-29 03:20:46,117 INFO L226 Difference]: Without dead ends: 1269 [2023-11-29 03:20:46,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:20:46,118 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 353 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:46,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 380 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:20:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-11-29 03:20:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 768. [2023-11-29 03:20:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 618 states have (on average 1.249190938511327) internal successors, (772), 632 states have internal predecessors, (772), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 03:20:46,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1038 transitions. [2023-11-29 03:20:46,211 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1038 transitions. Word has length 112 [2023-11-29 03:20:46,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:46,212 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1038 transitions. [2023-11-29 03:20:46,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:20:46,212 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1038 transitions. [2023-11-29 03:20:46,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 03:20:46,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:46,213 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:46,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:46,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 03:20:46,414 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:46,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1714238409, now seen corresponding path program 1 times [2023-11-29 03:20:46,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:46,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169887290] [2023-11-29 03:20:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:46,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:46,422 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:46,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693748006] [2023-11-29 03:20:46,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:46,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:46,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:46,424 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:46,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:20:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:46,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:20:46,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:20:47,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:47,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:47,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169887290] [2023-11-29 03:20:47,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:47,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693748006] [2023-11-29 03:20:47,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693748006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:47,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:47,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:20:47,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383455319] [2023-11-29 03:20:47,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:47,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:20:47,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:20:47,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:20:47,275 INFO L87 Difference]: Start difference. First operand 768 states and 1038 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:20:47,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:47,881 INFO L93 Difference]: Finished difference Result 865 states and 1149 transitions. [2023-11-29 03:20:47,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:20:47,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 113 [2023-11-29 03:20:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:47,885 INFO L225 Difference]: With dead ends: 865 [2023-11-29 03:20:47,885 INFO L226 Difference]: Without dead ends: 862 [2023-11-29 03:20:47,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:20:47,886 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 155 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:47,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 270 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:20:47,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-11-29 03:20:48,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 835. [2023-11-29 03:20:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 673 states have (on average 1.2436849925705795) internal successors, (837), 687 states have internal predecessors, (837), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2023-11-29 03:20:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1127 transitions. [2023-11-29 03:20:48,020 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1127 transitions. Word has length 113 [2023-11-29 03:20:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:48,021 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1127 transitions. [2023-11-29 03:20:48,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:20:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1127 transitions. [2023-11-29 03:20:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 03:20:48,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:48,022 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:48,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:48,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:20:48,224 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:48,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:48,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1601783070, now seen corresponding path program 1 times [2023-11-29 03:20:48,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:48,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634361864] [2023-11-29 03:20:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:48,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:48,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:48,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10133927] [2023-11-29 03:20:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:48,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:48,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:48,237 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:48,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:20:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:48,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:20:48,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 03:20:48,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:48,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:48,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634361864] [2023-11-29 03:20:48,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:48,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10133927] [2023-11-29 03:20:48,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10133927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:48,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:48,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:20:48,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945816558] [2023-11-29 03:20:48,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:48,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:20:48,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:48,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:20:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:20:48,438 INFO L87 Difference]: Start difference. First operand 835 states and 1127 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 03:20:48,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:48,831 INFO L93 Difference]: Finished difference Result 980 states and 1303 transitions. [2023-11-29 03:20:48,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:20:48,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2023-11-29 03:20:48,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:48,837 INFO L225 Difference]: With dead ends: 980 [2023-11-29 03:20:48,837 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 03:20:48,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:48,838 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 95 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:48,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 332 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 03:20:48,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 698. [2023-11-29 03:20:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 561 states have (on average 1.2156862745098038) internal successors, (682), 572 states have internal predecessors, (682), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2023-11-29 03:20:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 928 transitions. [2023-11-29 03:20:48,926 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 928 transitions. Word has length 114 [2023-11-29 03:20:48,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:48,926 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 928 transitions. [2023-11-29 03:20:48,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 03:20:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 928 transitions. [2023-11-29 03:20:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 03:20:48,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:48,928 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:48,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:20:49,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:20:49,128 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:49,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1884332441, now seen corresponding path program 1 times [2023-11-29 03:20:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:49,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206090099] [2023-11-29 03:20:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:49,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:49,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629038852] [2023-11-29 03:20:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:49,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:49,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:49,140 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:49,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:20:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:49,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:20:49,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 03:20:49,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:49,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:49,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206090099] [2023-11-29 03:20:49,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:49,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629038852] [2023-11-29 03:20:49,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629038852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:49,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:20:49,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282328952] [2023-11-29 03:20:49,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:49,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:20:49,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:49,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:20:49,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:20:49,892 INFO L87 Difference]: Start difference. First operand 698 states and 928 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 03:20:50,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:50,428 INFO L93 Difference]: Finished difference Result 717 states and 936 transitions. [2023-11-29 03:20:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:20:50,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 115 [2023-11-29 03:20:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:50,432 INFO L225 Difference]: With dead ends: 717 [2023-11-29 03:20:50,432 INFO L226 Difference]: Without dead ends: 710 [2023-11-29 03:20:50,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:20:50,433 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 210 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:50,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 266 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:20:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-29 03:20:50,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 621. [2023-11-29 03:20:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 499 states have (on average 1.2064128256513027) internal successors, (602), 510 states have internal predecessors, (602), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-29 03:20:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 818 transitions. [2023-11-29 03:20:50,520 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 818 transitions. Word has length 115 [2023-11-29 03:20:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:50,520 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 818 transitions. [2023-11-29 03:20:50,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 03:20:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 818 transitions. [2023-11-29 03:20:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 03:20:50,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:50,521 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:50,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 03:20:50,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 03:20:50,722 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:50,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash -685818489, now seen corresponding path program 1 times [2023-11-29 03:20:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377584147] [2023-11-29 03:20:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:50,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:50,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:50,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123433164] [2023-11-29 03:20:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:50,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:50,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:50,733 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:50,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:20:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:50,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:20:50,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:20:51,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:51,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:51,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377584147] [2023-11-29 03:20:51,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:51,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123433164] [2023-11-29 03:20:51,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123433164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:51,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:51,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:20:51,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693926096] [2023-11-29 03:20:51,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:51,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:20:51,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:51,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:20:51,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:20:51,283 INFO L87 Difference]: Start difference. First operand 621 states and 818 transitions. Second operand has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 03:20:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:52,053 INFO L93 Difference]: Finished difference Result 755 states and 968 transitions. [2023-11-29 03:20:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:20:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 115 [2023-11-29 03:20:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:52,057 INFO L225 Difference]: With dead ends: 755 [2023-11-29 03:20:52,057 INFO L226 Difference]: Without dead ends: 753 [2023-11-29 03:20:52,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:52,058 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 181 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:52,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 171 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:20:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-29 03:20:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 539. [2023-11-29 03:20:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 429 states have (on average 1.1771561771561772) internal successors, (505), 440 states have internal predecessors, (505), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 03:20:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 697 transitions. [2023-11-29 03:20:52,175 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 697 transitions. Word has length 115 [2023-11-29 03:20:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:52,176 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 697 transitions. [2023-11-29 03:20:52,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 03:20:52,176 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 697 transitions. [2023-11-29 03:20:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 03:20:52,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:52,177 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:52,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 03:20:52,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:20:52,378 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:52,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:52,378 INFO L85 PathProgramCache]: Analyzing trace with hash -770695640, now seen corresponding path program 2 times [2023-11-29 03:20:52,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:52,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949374569] [2023-11-29 03:20:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:52,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:52,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:52,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44882969] [2023-11-29 03:20:52,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:20:52,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:52,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:52,387 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:52,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:20:52,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:20:52,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:20:52,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:20:52,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 03:20:52,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:20:52,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949374569] [2023-11-29 03:20:52,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44882969] [2023-11-29 03:20:52,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44882969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:52,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:52,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:20:52,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290894253] [2023-11-29 03:20:52,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:52,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:20:52,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:52,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:20:52,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:20:52,497 INFO L87 Difference]: Start difference. First operand 539 states and 697 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 03:20:52,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:52,754 INFO L93 Difference]: Finished difference Result 953 states and 1224 transitions. [2023-11-29 03:20:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:20:52,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2023-11-29 03:20:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:52,759 INFO L225 Difference]: With dead ends: 953 [2023-11-29 03:20:52,759 INFO L226 Difference]: Without dead ends: 587 [2023-11-29 03:20:52,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:20:52,762 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:52,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 126 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:20:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-29 03:20:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 570. [2023-11-29 03:20:52,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 457 states have (on average 1.175054704595186) internal successors, (537), 468 states have internal predecessors, (537), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 03:20:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 735 transitions. [2023-11-29 03:20:52,867 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 735 transitions. Word has length 122 [2023-11-29 03:20:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:52,867 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 735 transitions. [2023-11-29 03:20:52,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 03:20:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 735 transitions. [2023-11-29 03:20:52,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 03:20:52,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:52,869 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:52,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:20:53,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:20:53,070 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:53,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash 490794444, now seen corresponding path program 2 times [2023-11-29 03:20:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533148736] [2023-11-29 03:20:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:53,080 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:53,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13398063] [2023-11-29 03:20:53,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:20:53,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:53,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:53,081 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:53,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:20:53,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:20:53,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:20:53,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:20:53,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:53,811 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:20:53,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:53,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:53,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533148736] [2023-11-29 03:20:53,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:53,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13398063] [2023-11-29 03:20:53,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13398063] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:53,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:53,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 03:20:53,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925004172] [2023-11-29 03:20:53,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:53,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:20:53,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:20:53,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:20:53,948 INFO L87 Difference]: Start difference. First operand 570 states and 735 transitions. Second operand has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2023-11-29 03:20:54,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:54,868 INFO L93 Difference]: Finished difference Result 663 states and 839 transitions. [2023-11-29 03:20:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:20:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) Word has length 150 [2023-11-29 03:20:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:54,872 INFO L225 Difference]: With dead ends: 663 [2023-11-29 03:20:54,872 INFO L226 Difference]: Without dead ends: 662 [2023-11-29 03:20:54,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:20:54,873 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 242 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:54,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 472 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:20:54,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-11-29 03:20:54,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 570. [2023-11-29 03:20:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 457 states have (on average 1.1728665207877462) internal successors, (536), 468 states have internal predecessors, (536), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 03:20:54,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 734 transitions. [2023-11-29 03:20:54,962 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 734 transitions. Word has length 150 [2023-11-29 03:20:54,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:54,962 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 734 transitions. [2023-11-29 03:20:54,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2023-11-29 03:20:54,963 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 734 transitions. [2023-11-29 03:20:54,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 03:20:54,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:54,964 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:54,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 03:20:55,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:55,165 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:55,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1965241365, now seen corresponding path program 2 times [2023-11-29 03:20:55,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:55,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799288099] [2023-11-29 03:20:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:55,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:55,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7834552] [2023-11-29 03:20:55,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:20:55,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:55,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:55,176 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:55,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:20:55,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:20:55,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:20:55,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:20:55,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:56,004 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:20:56,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:20:56,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:56,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799288099] [2023-11-29 03:20:56,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:20:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7834552] [2023-11-29 03:20:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7834552] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:20:56,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:20:56,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:20:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712709008] [2023-11-29 03:20:56,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:20:56,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:20:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:20:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:20:56,218 INFO L87 Difference]: Start difference. First operand 570 states and 734 transitions. Second operand has 13 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:20:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:56,861 INFO L93 Difference]: Finished difference Result 666 states and 843 transitions. [2023-11-29 03:20:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:20:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 151 [2023-11-29 03:20:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:56,864 INFO L225 Difference]: With dead ends: 666 [2023-11-29 03:20:56,864 INFO L226 Difference]: Without dead ends: 663 [2023-11-29 03:20:56,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:20:56,865 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 202 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:56,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 201 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:20:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-11-29 03:20:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 637. [2023-11-29 03:20:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 512 states have (on average 1.16796875) internal successors, (598), 523 states have internal predecessors, (598), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 03:20:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 820 transitions. [2023-11-29 03:20:56,953 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 820 transitions. Word has length 151 [2023-11-29 03:20:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:56,953 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 820 transitions. [2023-11-29 03:20:56,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:20:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 820 transitions. [2023-11-29 03:20:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 03:20:56,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:56,954 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:56,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 03:20:57,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 03:20:57,155 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:20:57,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1188660301, now seen corresponding path program 2 times [2023-11-29 03:20:57,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:57,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463027774] [2023-11-29 03:20:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:57,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:20:57,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769538667] [2023-11-29 03:20:57,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:20:57,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:20:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:20:57,166 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:20:57,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 03:20:57,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:20:57,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:20:57,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 03:20:57,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:20:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:20:57,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:21:10,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:10,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463027774] [2023-11-29 03:21:10,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:21:10,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769538667] [2023-11-29 03:21:10,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769538667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:21:10,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:21:10,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:21:10,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144274806] [2023-11-29 03:21:10,438 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:21:10,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:21:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:21:10,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=346, Unknown=3, NotChecked=0, Total=420 [2023-11-29 03:21:10,440 INFO L87 Difference]: Start difference. First operand 637 states and 820 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:21:11,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:11,268 INFO L93 Difference]: Finished difference Result 654 states and 826 transitions. [2023-11-29 03:21:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:21:11,269 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 153 [2023-11-29 03:21:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:11,272 INFO L225 Difference]: With dead ends: 654 [2023-11-29 03:21:11,272 INFO L226 Difference]: Without dead ends: 647 [2023-11-29 03:21:11,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=144, Invalid=723, Unknown=3, NotChecked=0, Total=870 [2023-11-29 03:21:11,273 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 197 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:11,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 508 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:21:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-29 03:21:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 635. [2023-11-29 03:21:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 510 states have (on average 1.1549019607843136) internal successors, (589), 521 states have internal predecessors, (589), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 03:21:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 811 transitions. [2023-11-29 03:21:11,377 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 811 transitions. Word has length 153 [2023-11-29 03:21:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:11,377 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 811 transitions. [2023-11-29 03:21:11,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:21:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 811 transitions. [2023-11-29 03:21:11,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 03:21:11,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:11,378 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:11,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 03:21:11,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 03:21:11,579 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:21:11,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1381490629, now seen corresponding path program 2 times [2023-11-29 03:21:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:11,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712939349] [2023-11-29 03:21:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:11,589 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:21:11,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84386742] [2023-11-29 03:21:11,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:21:11,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:21:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:21:11,590 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:21:11,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 03:21:11,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:21:11,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:21:11,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:21:11,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:21:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:21:11,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:21:12,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:12,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712939349] [2023-11-29 03:21:12,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:21:12,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84386742] [2023-11-29 03:21:12,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84386742] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:21:12,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:21:12,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 03:21:12,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989353982] [2023-11-29 03:21:12,236 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:21:12,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:21:12,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:12,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:21:12,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:21:12,237 INFO L87 Difference]: Start difference. First operand 635 states and 811 transitions. Second operand has 10 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 03:21:13,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:13,253 INFO L93 Difference]: Finished difference Result 817 states and 1017 transitions. [2023-11-29 03:21:13,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:21:13,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 153 [2023-11-29 03:21:13,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:13,257 INFO L225 Difference]: With dead ends: 817 [2023-11-29 03:21:13,257 INFO L226 Difference]: Without dead ends: 815 [2023-11-29 03:21:13,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:21:13,258 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 306 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:13,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 162 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:21:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-11-29 03:21:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 675. [2023-11-29 03:21:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 545 states have (on average 1.144954128440367) internal successors, (624), 556 states have internal predecessors, (624), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-29 03:21:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 856 transitions. [2023-11-29 03:21:13,351 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 856 transitions. Word has length 153 [2023-11-29 03:21:13,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:13,352 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 856 transitions. [2023-11-29 03:21:13,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 03:21:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 856 transitions. [2023-11-29 03:21:13,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 03:21:13,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:13,353 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2023-11-29 03:21:13,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 03:21:13,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 03:21:13,553 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:21:13,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash -428308236, now seen corresponding path program 3 times [2023-11-29 03:21:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281425468] [2023-11-29 03:21:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:13,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:21:13,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725422022] [2023-11-29 03:21:13,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:21:13,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:21:13,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:21:13,562 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:21:13,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 03:21:13,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:21:13,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:21:13,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 03:21:13,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:21:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 126 proven. 58 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-29 03:21:15,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:21:17,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281425468] [2023-11-29 03:21:17,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:21:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725422022] [2023-11-29 03:21:17,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725422022] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:21:17,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:21:17,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 03:21:17,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292535417] [2023-11-29 03:21:17,480 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:21:17,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:21:17,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:17,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:21:17,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:21:17,481 INFO L87 Difference]: Start difference. First operand 675 states and 856 transitions. Second operand has 19 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 8 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-11-29 03:21:22,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:28,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:32,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:38,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:44,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:45,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:47,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:21:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:47,204 INFO L93 Difference]: Finished difference Result 1114 states and 1416 transitions. [2023-11-29 03:21:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 03:21:47,205 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 8 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 160 [2023-11-29 03:21:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:47,211 INFO L225 Difference]: With dead ends: 1114 [2023-11-29 03:21:47,212 INFO L226 Difference]: Without dead ends: 1105 [2023-11-29 03:21:47,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=261, Invalid=1145, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:21:47,213 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 392 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 75 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:47,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 297 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1128 Invalid, 9 Unknown, 0 Unchecked, 26.9s Time] [2023-11-29 03:21:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-11-29 03:21:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 991. [2023-11-29 03:21:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 805 states have (on average 1.1503105590062113) internal successors, (926), 816 states have internal predecessors, (926), 172 states have call successors, (172), 2 states have call predecessors, (172), 2 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2023-11-29 03:21:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1270 transitions. [2023-11-29 03:21:47,394 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1270 transitions. Word has length 160 [2023-11-29 03:21:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:47,395 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1270 transitions. [2023-11-29 03:21:47,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 8 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-11-29 03:21:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1270 transitions. [2023-11-29 03:21:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 03:21:47,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:47,396 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 03:21:47,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 03:21:47,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 03:21:47,596 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:21:47,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash 712647446, now seen corresponding path program 3 times [2023-11-29 03:21:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:47,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111051159] [2023-11-29 03:21:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:47,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:21:47,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139757996] [2023-11-29 03:21:47,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:21:47,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:21:47,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:21:47,606 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:21:47,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 03:21:47,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:21:47,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:21:47,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 03:21:47,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:21:48,124 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 66 proven. 70 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-29 03:21:48,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:21:48,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:48,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111051159] [2023-11-29 03:21:48,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:21:48,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139757996] [2023-11-29 03:21:48,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139757996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:21:48,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:21:48,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:21:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167260140] [2023-11-29 03:21:48,360 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:21:48,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:21:48,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:48,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:21:48,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:21:48,361 INFO L87 Difference]: Start difference. First operand 991 states and 1270 transitions. Second operand has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:21:49,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:49,364 INFO L93 Difference]: Finished difference Result 999 states and 1272 transitions. [2023-11-29 03:21:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:21:49,365 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) Word has length 162 [2023-11-29 03:21:49,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:49,369 INFO L225 Difference]: With dead ends: 999 [2023-11-29 03:21:49,369 INFO L226 Difference]: Without dead ends: 978 [2023-11-29 03:21:49,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:21:49,370 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 221 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:49,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 130 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:21:49,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2023-11-29 03:21:49,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 968. [2023-11-29 03:21:49,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 787 states have (on average 1.1143583227445997) internal successors, (877), 795 states have internal predecessors, (877), 170 states have call successors, (170), 2 states have call predecessors, (170), 2 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-29 03:21:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1217 transitions. [2023-11-29 03:21:49,545 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1217 transitions. Word has length 162 [2023-11-29 03:21:49,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:49,545 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1217 transitions. [2023-11-29 03:21:49,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 03:21:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1217 transitions. [2023-11-29 03:21:49,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 03:21:49,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:49,547 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 03:21:49,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 03:21:49,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 03:21:49,747 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:21:49,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:49,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1206033249, now seen corresponding path program 4 times [2023-11-29 03:21:49,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:49,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617008870] [2023-11-29 03:21:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:49,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:49,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:21:49,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250188320] [2023-11-29 03:21:49,760 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:21:49,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:21:49,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:21:49,761 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:21:49,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 03:21:49,836 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:21:49,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:21:49,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:21:49,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:21:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2023-11-29 03:21:50,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:21:50,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617008870] [2023-11-29 03:21:50,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:21:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250188320] [2023-11-29 03:21:50,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250188320] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:21:50,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:21:50,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:21:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922935907] [2023-11-29 03:21:50,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:21:50,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:21:50,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:50,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:21:50,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:21:50,928 INFO L87 Difference]: Start difference. First operand 968 states and 1217 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 9 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2023-11-29 03:21:52,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:52,094 INFO L93 Difference]: Finished difference Result 1111 states and 1384 transitions. [2023-11-29 03:21:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 03:21:52,095 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 9 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 189 [2023-11-29 03:21:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:52,099 INFO L225 Difference]: With dead ends: 1111 [2023-11-29 03:21:52,100 INFO L226 Difference]: Without dead ends: 1107 [2023-11-29 03:21:52,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:21:52,101 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 192 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:52,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 340 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:21:52,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-11-29 03:21:52,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 982. [2023-11-29 03:21:52,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 799 states have (on average 1.1126408010012516) internal successors, (889), 807 states have internal predecessors, (889), 172 states have call successors, (172), 2 states have call predecessors, (172), 2 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2023-11-29 03:21:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1233 transitions. [2023-11-29 03:21:52,281 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1233 transitions. Word has length 189 [2023-11-29 03:21:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:52,282 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 1233 transitions. [2023-11-29 03:21:52,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 9 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2023-11-29 03:21:52,282 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1233 transitions. [2023-11-29 03:21:52,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 03:21:52,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:52,283 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:52,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 03:21:52,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 03:21:52,484 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:21:52,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1926931473, now seen corresponding path program 3 times [2023-11-29 03:21:52,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:52,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627709946] [2023-11-29 03:21:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:52,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:52,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:21:52,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608764231] [2023-11-29 03:21:52,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:21:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:21:52,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:21:52,497 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:21:52,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 03:21:52,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:21:52,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:21:52,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:21:52,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:21:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-11-29 03:21:53,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:21:53,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627709946] [2023-11-29 03:21:53,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:21:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608764231] [2023-11-29 03:21:53,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608764231] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:21:53,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:21:53,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:21:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109532392] [2023-11-29 03:21:53,632 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:21:53,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:21:53,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:53,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:21:53,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:21:53,633 INFO L87 Difference]: Start difference. First operand 982 states and 1233 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:21:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:56,463 INFO L93 Difference]: Finished difference Result 1243 states and 1548 transitions. [2023-11-29 03:21:56,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:21:56,463 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 191 [2023-11-29 03:21:56,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:56,468 INFO L225 Difference]: With dead ends: 1243 [2023-11-29 03:21:56,468 INFO L226 Difference]: Without dead ends: 1241 [2023-11-29 03:21:56,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:21:56,469 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 392 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:56,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 368 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 03:21:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2023-11-29 03:21:56,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 975. [2023-11-29 03:21:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 793 states have (on average 1.1109709962168979) internal successors, (881), 801 states have internal predecessors, (881), 171 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2023-11-29 03:21:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1223 transitions. [2023-11-29 03:21:56,654 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1223 transitions. Word has length 191 [2023-11-29 03:21:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:56,655 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1223 transitions. [2023-11-29 03:21:56,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:21:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1223 transitions. [2023-11-29 03:21:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 03:21:56,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:56,656 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:56,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 03:21:56,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 03:21:56,857 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:21:56,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:56,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1385459625, now seen corresponding path program 3 times [2023-11-29 03:21:56,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:56,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065946702] [2023-11-29 03:21:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:56,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:21:56,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977963332] [2023-11-29 03:21:56,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:21:56,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:21:56,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:21:56,867 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:21:56,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 03:21:56,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 03:21:56,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:21:56,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 03:21:56,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:22:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 109 proven. 62 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2023-11-29 03:22:10,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:22:20,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:22:20,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065946702] [2023-11-29 03:22:20,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:22:20,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977963332] [2023-11-29 03:22:20,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977963332] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:22:20,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:22:20,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 03:22:20,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011552809] [2023-11-29 03:22:20,302 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:22:20,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:22:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:22:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:22:20,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=333, Unknown=7, NotChecked=0, Total=420 [2023-11-29 03:22:20,304 INFO L87 Difference]: Start difference. First operand 975 states and 1223 transitions. Second operand has 15 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 03:22:27,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:29,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:31,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:33,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:35,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:38,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:40,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:42,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:44,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:46,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:48,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:50,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:53,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:55,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:57,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:22:59,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:04,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:06,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:08,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:10,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:14,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:19,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:21,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:28,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:30,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:33,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:23:33,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:33,159 INFO L93 Difference]: Finished difference Result 979 states and 1225 transitions. [2023-11-29 03:23:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:23:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 197 [2023-11-29 03:23:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:33,171 INFO L225 Difference]: With dead ends: 979 [2023-11-29 03:23:33,171 INFO L226 Difference]: Without dead ends: 968 [2023-11-29 03:23:33,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=198, Invalid=720, Unknown=12, NotChecked=0, Total=930 [2023-11-29 03:23:33,172 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 141 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 35 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:33,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 156 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 483 Invalid, 26 Unknown, 0 Unchecked, 60.5s Time] [2023-11-29 03:23:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2023-11-29 03:23:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 585. [2023-11-29 03:23:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 473 states have (on average 1.0909090909090908) internal successors, (516), 479 states have internal predecessors, (516), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-29 03:23:33,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 722 transitions. [2023-11-29 03:23:33,335 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 722 transitions. Word has length 197 [2023-11-29 03:23:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:33,335 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 722 transitions. [2023-11-29 03:23:33,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 03:23:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 722 transitions. [2023-11-29 03:23:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 03:23:33,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:33,337 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:33,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 03:23:33,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:23:33,538 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:33,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1073349123, now seen corresponding path program 2 times [2023-11-29 03:23:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554753552] [2023-11-29 03:23:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:33,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:33,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613201120] [2023-11-29 03:23:33,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:23:33,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:33,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:33,548 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:33,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 03:23:33,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:23:33,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:23:33,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:23:33,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-11-29 03:23:33,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:33,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-11-29 03:23:33,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554753552] [2023-11-29 03:23:33,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613201120] [2023-11-29 03:23:33,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613201120] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:23:33,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:23:33,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:23:33,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815953439] [2023-11-29 03:23:33,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:33,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:23:33,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:33,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:23:33,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:23:33,947 INFO L87 Difference]: Start difference. First operand 585 states and 722 transitions. Second operand has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2023-11-29 03:23:34,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:34,743 INFO L93 Difference]: Finished difference Result 1463 states and 1813 transitions. [2023-11-29 03:23:34,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:23:34,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) Word has length 212 [2023-11-29 03:23:34,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:34,750 INFO L225 Difference]: With dead ends: 1463 [2023-11-29 03:23:34,750 INFO L226 Difference]: Without dead ends: 1462 [2023-11-29 03:23:34,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:23:34,751 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 387 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:34,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 484 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:23:34,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-11-29 03:23:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1088. [2023-11-29 03:23:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 883 states have (on average 1.115515288788222) internal successors, (985), 889 states have internal predecessors, (985), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-29 03:23:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1377 transitions. [2023-11-29 03:23:35,013 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1377 transitions. Word has length 212 [2023-11-29 03:23:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:35,013 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1377 transitions. [2023-11-29 03:23:35,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.846153846153847) internal successors, (180), 14 states have internal predecessors, (180), 13 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 13 states have call predecessors, (43), 13 states have call successors, (43) [2023-11-29 03:23:35,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1377 transitions. [2023-11-29 03:23:35,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-29 03:23:35,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:35,015 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:35,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 03:23:35,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:35,215 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:35,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash 91309392, now seen corresponding path program 1 times [2023-11-29 03:23:35,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:35,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502723272] [2023-11-29 03:23:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:35,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:35,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:35,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226253151] [2023-11-29 03:23:35,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:35,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:35,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:35,225 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:35,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 03:23:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:23:35,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:23:35,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 558 proven. 39 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2023-11-29 03:23:35,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 110 proven. 39 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2023-11-29 03:23:35,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:35,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502723272] [2023-11-29 03:23:35,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:35,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226253151] [2023-11-29 03:23:35,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226253151] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:23:35,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:23:35,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 03:23:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166827328] [2023-11-29 03:23:35,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:35,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:23:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:23:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:23:35,540 INFO L87 Difference]: Start difference. First operand 1088 states and 1377 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 03:23:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:36,182 INFO L93 Difference]: Finished difference Result 1943 states and 2458 transitions. [2023-11-29 03:23:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:23:36,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 226 [2023-11-29 03:23:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:36,189 INFO L225 Difference]: With dead ends: 1943 [2023-11-29 03:23:36,189 INFO L226 Difference]: Without dead ends: 1174 [2023-11-29 03:23:36,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 442 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:23:36,191 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 91 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:36,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 365 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:23:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-11-29 03:23:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1135. [2023-11-29 03:23:36,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 922 states have (on average 1.1149674620390455) internal successors, (1028), 928 states have internal predecessors, (1028), 204 states have call successors, (204), 2 states have call predecessors, (204), 2 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2023-11-29 03:23:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1436 transitions. [2023-11-29 03:23:36,486 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1436 transitions. Word has length 226 [2023-11-29 03:23:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:36,486 INFO L495 AbstractCegarLoop]: Abstraction has 1135 states and 1436 transitions. [2023-11-29 03:23:36,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 03:23:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1436 transitions. [2023-11-29 03:23:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-29 03:23:36,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:36,487 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:36,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 03:23:36,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 03:23:36,688 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:36,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:36,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2051919616, now seen corresponding path program 2 times [2023-11-29 03:23:36,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:36,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687732419] [2023-11-29 03:23:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:36,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:36,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:36,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976272427] [2023-11-29 03:23:36,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:23:36,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:36,697 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:36,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 03:23:36,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:23:36,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:23:36,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:23:36,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2023-11-29 03:23:37,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2023-11-29 03:23:37,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:37,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687732419] [2023-11-29 03:23:37,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:37,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976272427] [2023-11-29 03:23:37,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976272427] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:23:37,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:23:37,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 03:23:37,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014058783] [2023-11-29 03:23:37,257 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:37,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:23:37,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:37,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:23:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:23:37,259 INFO L87 Difference]: Start difference. First operand 1135 states and 1436 transitions. Second operand has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 15 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 15 states have call predecessors, (47), 15 states have call successors, (47) [2023-11-29 03:23:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:39,534 INFO L93 Difference]: Finished difference Result 2591 states and 3270 transitions. [2023-11-29 03:23:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 03:23:39,535 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 15 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 15 states have call predecessors, (47), 15 states have call successors, (47) Word has length 226 [2023-11-29 03:23:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:39,547 INFO L225 Difference]: With dead ends: 2591 [2023-11-29 03:23:39,547 INFO L226 Difference]: Without dead ends: 2578 [2023-11-29 03:23:39,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=380, Invalid=612, Unknown=0, NotChecked=0, Total=992 [2023-11-29 03:23:39,548 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1422 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:39,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 372 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:23:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2023-11-29 03:23:40,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 1470. [2023-11-29 03:23:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1195 states have (on average 1.105439330543933) internal successors, (1321), 1201 states have internal predecessors, (1321), 266 states have call successors, (266), 2 states have call predecessors, (266), 2 states have return successors, (266), 266 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 03:23:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1853 transitions. [2023-11-29 03:23:40,042 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1853 transitions. Word has length 226 [2023-11-29 03:23:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:40,043 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 1853 transitions. [2023-11-29 03:23:40,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 15 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 15 states have call predecessors, (47), 15 states have call successors, (47) [2023-11-29 03:23:40,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1853 transitions. [2023-11-29 03:23:40,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-11-29 03:23:40,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:40,044 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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 03:23:40,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 03:23:40,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:40,245 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:40,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash -589703597, now seen corresponding path program 5 times [2023-11-29 03:23:40,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:40,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285654439] [2023-11-29 03:23:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:40,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:40,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:40,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935118359] [2023-11-29 03:23:40,255 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:23:40,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:40,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:40,256 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:40,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 03:23:40,350 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2023-11-29 03:23:40,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:23:40,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:23:40,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 45 proven. 214 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2023-11-29 03:23:41,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:41,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285654439] [2023-11-29 03:23:41,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935118359] [2023-11-29 03:23:41,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935118359] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:23:41,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:23:41,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-29 03:23:41,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741123127] [2023-11-29 03:23:41,914 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:41,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 03:23:41,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:41,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 03:23:41,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:23:41,916 INFO L87 Difference]: Start difference. First operand 1470 states and 1853 transitions. Second operand has 21 states, 20 states have (on average 5.7) internal successors, (114), 20 states have internal predecessors, (114), 11 states have call successors, (25), 1 states have call predecessors, (25), 3 states have return successors, (25), 10 states have call predecessors, (25), 11 states have call successors, (25) [2023-11-29 03:23:44,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:44,714 INFO L93 Difference]: Finished difference Result 1743 states and 2190 transitions. [2023-11-29 03:23:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 03:23:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.7) internal successors, (114), 20 states have internal predecessors, (114), 11 states have call successors, (25), 1 states have call predecessors, (25), 3 states have return successors, (25), 10 states have call predecessors, (25), 11 states have call successors, (25) Word has length 227 [2023-11-29 03:23:44,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:44,720 INFO L225 Difference]: With dead ends: 1743 [2023-11-29 03:23:44,720 INFO L226 Difference]: Without dead ends: 1739 [2023-11-29 03:23:44,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=436, Invalid=1634, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 03:23:44,722 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 172 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:44,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 371 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:23:44,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2023-11-29 03:23:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1484. [2023-11-29 03:23:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1207 states have (on average 1.104391052195526) internal successors, (1333), 1213 states have internal predecessors, (1333), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 03:23:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1869 transitions. [2023-11-29 03:23:45,146 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1869 transitions. Word has length 227 [2023-11-29 03:23:45,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:45,147 INFO L495 AbstractCegarLoop]: Abstraction has 1484 states and 1869 transitions. [2023-11-29 03:23:45,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.7) internal successors, (114), 20 states have internal predecessors, (114), 11 states have call successors, (25), 1 states have call predecessors, (25), 3 states have return successors, (25), 10 states have call predecessors, (25), 11 states have call successors, (25) [2023-11-29 03:23:45,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1869 transitions. [2023-11-29 03:23:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-29 03:23:45,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:45,150 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 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 03:23:45,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 03:23:45,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:45,350 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:45,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1449615623, now seen corresponding path program 6 times [2023-11-29 03:23:45,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:45,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010348024] [2023-11-29 03:23:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:45,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:45,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611932981] [2023-11-29 03:23:45,367 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:23:45,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:45,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:45,368 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:45,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 03:23:46,072 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-11-29 03:23:46,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:23:46,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:23:46,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1603 backedges. 86 proven. 6 refuted. 0 times theorem prover too weak. 1511 trivial. 0 not checked. [2023-11-29 03:23:46,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:47,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:47,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010348024] [2023-11-29 03:23:47,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:47,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611932981] [2023-11-29 03:23:47,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611932981] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:23:47,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:23:47,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 03:23:47,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482346505] [2023-11-29 03:23:47,180 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:47,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:23:47,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:47,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:23:47,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:23:47,181 INFO L87 Difference]: Start difference. First operand 1484 states and 1869 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:23:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:48,604 INFO L93 Difference]: Finished difference Result 1493 states and 1871 transitions. [2023-11-29 03:23:48,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:23:48,604 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 265 [2023-11-29 03:23:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:48,608 INFO L225 Difference]: With dead ends: 1493 [2023-11-29 03:23:48,608 INFO L226 Difference]: Without dead ends: 1489 [2023-11-29 03:23:48,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:23:48,609 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 103 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:48,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 159 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:23:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2023-11-29 03:23:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1470. [2023-11-29 03:23:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1195 states have (on average 1.102092050209205) internal successors, (1317), 1201 states have internal predecessors, (1317), 266 states have call successors, (266), 2 states have call predecessors, (266), 2 states have return successors, (266), 266 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 03:23:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1849 transitions. [2023-11-29 03:23:49,001 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1849 transitions. Word has length 265 [2023-11-29 03:23:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:49,002 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 1849 transitions. [2023-11-29 03:23:49,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 03:23:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1849 transitions. [2023-11-29 03:23:49,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-29 03:23:49,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:49,004 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:49,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 03:23:49,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:49,204 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:49,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2118661079, now seen corresponding path program 7 times [2023-11-29 03:23:49,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:49,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878923259] [2023-11-29 03:23:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:49,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:49,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:49,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137704336] [2023-11-29 03:23:49,217 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 03:23:49,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:49,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:49,218 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:49,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 03:23:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:23:49,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 03:23:49,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:50,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2023-11-29 03:23:50,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:50,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878923259] [2023-11-29 03:23:50,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137704336] [2023-11-29 03:23:50,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137704336] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:23:50,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:23:50,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-29 03:23:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115706892] [2023-11-29 03:23:50,828 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:50,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 03:23:50,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 03:23:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:23:50,830 INFO L87 Difference]: Start difference. First operand 1470 states and 1849 transitions. Second operand has 21 states, 20 states have (on average 6.85) internal successors, (137), 21 states have internal predecessors, (137), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 11 states have call predecessors, (31), 12 states have call successors, (31) [2023-11-29 03:23:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:52,764 INFO L93 Difference]: Finished difference Result 2484 states and 3140 transitions. [2023-11-29 03:23:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:23:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.85) internal successors, (137), 21 states have internal predecessors, (137), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 11 states have call predecessors, (31), 12 states have call successors, (31) Word has length 283 [2023-11-29 03:23:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:52,768 INFO L225 Difference]: With dead ends: 2484 [2023-11-29 03:23:52,768 INFO L226 Difference]: Without dead ends: 1471 [2023-11-29 03:23:52,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=181, Invalid=1459, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 03:23:52,770 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 219 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:52,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 745 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:23:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2023-11-29 03:23:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1470. [2023-11-29 03:23:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1195 states have (on average 1.101255230125523) internal successors, (1316), 1201 states have internal predecessors, (1316), 266 states have call successors, (266), 2 states have call predecessors, (266), 2 states have return successors, (266), 266 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 03:23:53,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1848 transitions. [2023-11-29 03:23:53,167 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1848 transitions. Word has length 283 [2023-11-29 03:23:53,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:53,168 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 1848 transitions. [2023-11-29 03:23:53,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.85) internal successors, (137), 21 states have internal predecessors, (137), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 11 states have call predecessors, (31), 12 states have call successors, (31) [2023-11-29 03:23:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1848 transitions. [2023-11-29 03:23:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-11-29 03:23:53,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:53,170 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:53,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 03:23:53,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:53,371 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:53,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:53,371 INFO L85 PathProgramCache]: Analyzing trace with hash 633737867, now seen corresponding path program 8 times [2023-11-29 03:23:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:53,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627060013] [2023-11-29 03:23:53,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:53,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:53,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:53,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282272337] [2023-11-29 03:23:53,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:23:53,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:53,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:53,383 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:53,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 03:23:53,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:23:53,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:23:53,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:23:53,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:54,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2383 backedges. 3 proven. 390 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2023-11-29 03:23:54,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:54,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:54,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627060013] [2023-11-29 03:23:54,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:54,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282272337] [2023-11-29 03:23:54,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282272337] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:23:54,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:23:54,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 03:23:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183307070] [2023-11-29 03:23:54,848 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:54,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:23:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:23:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:23:54,850 INFO L87 Difference]: Start difference. First operand 1470 states and 1848 transitions. Second operand has 19 states, 18 states have (on average 8.61111111111111) internal successors, (155), 18 states have internal predecessors, (155), 13 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 13 states have call predecessors, (35), 13 states have call successors, (35) [2023-11-29 03:23:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:56,255 INFO L93 Difference]: Finished difference Result 1659 states and 2081 transitions. [2023-11-29 03:23:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:23:56,256 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.61111111111111) internal successors, (155), 18 states have internal predecessors, (155), 13 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 13 states have call predecessors, (35), 13 states have call successors, (35) Word has length 321 [2023-11-29 03:23:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:56,259 INFO L225 Difference]: With dead ends: 1659 [2023-11-29 03:23:56,259 INFO L226 Difference]: Without dead ends: 1614 [2023-11-29 03:23:56,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:23:56,260 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 212 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:56,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 356 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:23:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2023-11-29 03:23:56,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1470. [2023-11-29 03:23:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1195 states have (on average 1.100418410041841) internal successors, (1315), 1201 states have internal predecessors, (1315), 266 states have call successors, (266), 2 states have call predecessors, (266), 2 states have return successors, (266), 266 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 03:23:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1847 transitions. [2023-11-29 03:23:56,754 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1847 transitions. Word has length 321 [2023-11-29 03:23:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:56,754 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 1847 transitions. [2023-11-29 03:23:56,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.61111111111111) internal successors, (155), 18 states have internal predecessors, (155), 13 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 13 states have call predecessors, (35), 13 states have call successors, (35) [2023-11-29 03:23:56,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1847 transitions. [2023-11-29 03:23:56,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 03:23:56,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:56,757 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 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] [2023-11-29 03:23:56,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 03:23:56,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:56,958 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:23:56,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash -891527304, now seen corresponding path program 1 times [2023-11-29 03:23:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:56,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670714694] [2023-11-29 03:23:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:56,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:56,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:23:56,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755871589] [2023-11-29 03:23:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:56,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:23:56,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:23:56,972 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:23:56,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 03:23:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:23:57,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:23:57,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:23:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2979 backedges. 812 proven. 363 refuted. 0 times theorem prover too weak. 1804 trivial. 0 not checked. [2023-11-29 03:23:57,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:23:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2979 backedges. 212 proven. 363 refuted. 0 times theorem prover too weak. 2404 trivial. 0 not checked. [2023-11-29 03:23:57,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:57,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670714694] [2023-11-29 03:23:57,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:23:57,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755871589] [2023-11-29 03:23:57,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755871589] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:23:57,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:23:57,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2023-11-29 03:23:57,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927571648] [2023-11-29 03:23:57,638 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:23:57,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:23:57,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:57,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:23:57,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:23:57,640 INFO L87 Difference]: Start difference. First operand 1470 states and 1847 transitions. Second operand has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 12 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 12 states have call predecessors, (48), 12 states have call successors, (48) [2023-11-29 03:23:59,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:23:59,365 INFO L93 Difference]: Finished difference Result 2609 states and 3269 transitions. [2023-11-29 03:23:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:23:59,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 12 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 12 states have call predecessors, (48), 12 states have call successors, (48) Word has length 352 [2023-11-29 03:23:59,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:23:59,369 INFO L225 Difference]: With dead ends: 2609 [2023-11-29 03:23:59,369 INFO L226 Difference]: Without dead ends: 1710 [2023-11-29 03:23:59,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 688 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:23:59,371 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 377 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:23:59,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 949 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:23:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-11-29 03:23:59,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1566. [2023-11-29 03:23:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1274 states have (on average 1.098901098901099) internal successors, (1400), 1280 states have internal predecessors, (1400), 283 states have call successors, (283), 2 states have call predecessors, (283), 2 states have return successors, (283), 283 states have call predecessors, (283), 283 states have call successors, (283) [2023-11-29 03:23:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1966 transitions. [2023-11-29 03:23:59,821 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1966 transitions. Word has length 352 [2023-11-29 03:23:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:23:59,822 INFO L495 AbstractCegarLoop]: Abstraction has 1566 states and 1966 transitions. [2023-11-29 03:23:59,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 12 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 12 states have call predecessors, (48), 12 states have call successors, (48) [2023-11-29 03:23:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1966 transitions. [2023-11-29 03:23:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-11-29 03:23:59,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:23:59,825 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:59,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 03:24:00,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:00,026 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:00,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1903631127, now seen corresponding path program 9 times [2023-11-29 03:24:00,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:00,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367736518] [2023-11-29 03:24:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:00,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:00,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:00,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119946795] [2023-11-29 03:24:00,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:24:00,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:00,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:00,042 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:00,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 03:24:00,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:24:00,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:24:00,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-29 03:24:00,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3046 backedges. 415 proven. 330 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked. [2023-11-29 03:24:05,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:24:07,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:07,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367736518] [2023-11-29 03:24:07,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:07,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119946795] [2023-11-29 03:24:07,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119946795] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:24:07,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:24:07,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-29 03:24:07,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142306342] [2023-11-29 03:24:07,849 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:24:07,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 03:24:07,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:07,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 03:24:07,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=683, Unknown=2, NotChecked=0, Total=812 [2023-11-29 03:24:07,851 INFO L87 Difference]: Start difference. First operand 1566 states and 1966 transitions. Second operand has 22 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 9 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2023-11-29 03:24:21,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:24:23,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:24:35,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:24:43,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:24:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:53,509 INFO L93 Difference]: Finished difference Result 1574 states and 1968 transitions. [2023-11-29 03:24:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 03:24:53,509 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 9 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 359 [2023-11-29 03:24:53,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:53,512 INFO L225 Difference]: With dead ends: 1574 [2023-11-29 03:24:53,512 INFO L226 Difference]: Without dead ends: 1508 [2023-11-29 03:24:53,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=392, Invalid=1675, Unknown=3, NotChecked=0, Total=2070 [2023-11-29 03:24:53,514 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 166 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 44 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:53,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 623 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1539 Invalid, 27 Unknown, 0 Unchecked, 35.6s Time] [2023-11-29 03:24:53,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2023-11-29 03:24:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 897. [2023-11-29 03:24:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 727 states have (on average 1.0536451169188445) internal successors, (766), 730 states have internal predecessors, (766), 164 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (164), 164 states have call predecessors, (164), 164 states have call successors, (164) [2023-11-29 03:24:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1094 transitions. [2023-11-29 03:24:53,845 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1094 transitions. Word has length 359 [2023-11-29 03:24:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:53,846 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1094 transitions. [2023-11-29 03:24:53,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 9 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2023-11-29 03:24:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1094 transitions. [2023-11-29 03:24:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-11-29 03:24:53,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:53,849 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2023-11-29 03:24:53,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 03:24:54,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 03:24:54,049 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:54,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1124938052, now seen corresponding path program 2 times [2023-11-29 03:24:54,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775636393] [2023-11-29 03:24:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:54,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:54,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:54,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031138187] [2023-11-29 03:24:54,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:24:54,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:54,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:54,065 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:54,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 03:24:54,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:24:54,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:24:54,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:24:54,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:24:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 252 proven. 657 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2023-11-29 03:24:54,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:24:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 100 proven. 657 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2023-11-29 03:24:54,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:54,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775636393] [2023-11-29 03:24:54,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:24:54,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031138187] [2023-11-29 03:24:54,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031138187] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:24:54,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:24:54,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 17 [2023-11-29 03:24:54,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060255468] [2023-11-29 03:24:54,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:24:54,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:24:54,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:54,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:24:54,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:24:54,897 INFO L87 Difference]: Start difference. First operand 897 states and 1094 transitions. Second operand has 17 states, 17 states have (on average 14.058823529411764) internal successors, (239), 17 states have internal predecessors, (239), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2023-11-29 03:24:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:24:57,569 INFO L93 Difference]: Finished difference Result 1804 states and 2193 transitions. [2023-11-29 03:24:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 03:24:57,569 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.058823529411764) internal successors, (239), 17 states have internal predecessors, (239), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) Word has length 390 [2023-11-29 03:24:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:24:57,572 INFO L225 Difference]: With dead ends: 1804 [2023-11-29 03:24:57,572 INFO L226 Difference]: Without dead ends: 1448 [2023-11-29 03:24:57,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 760 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=322, Invalid=1160, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 03:24:57,573 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 328 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:24:57,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1647 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:24:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2023-11-29 03:24:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1039. [2023-11-29 03:24:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 843 states have (on average 1.0521945432977462) internal successors, (887), 846 states have internal predecessors, (887), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 03:24:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1267 transitions. [2023-11-29 03:24:57,966 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1267 transitions. Word has length 390 [2023-11-29 03:24:57,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:24:57,966 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1267 transitions. [2023-11-29 03:24:57,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.058823529411764) internal successors, (239), 17 states have internal predecessors, (239), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2023-11-29 03:24:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1267 transitions. [2023-11-29 03:24:57,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2023-11-29 03:24:57,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:24:57,970 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:57,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 03:24:58,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 03:24:58,171 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:24:58,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:58,171 INFO L85 PathProgramCache]: Analyzing trace with hash 155601188, now seen corresponding path program 3 times [2023-11-29 03:24:58,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:58,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730479812] [2023-11-29 03:24:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:58,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:58,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:24:58,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698766085] [2023-11-29 03:24:58,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:24:58,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:24:58,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:24:58,195 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:24:58,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 03:24:58,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:24:58,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:24:58,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 03:24:58,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4307 backedges. 359 proven. 292 refuted. 0 times theorem prover too weak. 3656 trivial. 0 not checked. [2023-11-29 03:25:00,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:01,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:01,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730479812] [2023-11-29 03:25:01,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:01,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698766085] [2023-11-29 03:25:01,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698766085] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:01,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:01,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 03:25:01,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205242050] [2023-11-29 03:25:01,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:01,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:25:01,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:25:01,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:25:01,088 INFO L87 Difference]: Start difference. First operand 1039 states and 1267 transitions. Second operand has 15 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 03:25:05,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:05,044 INFO L93 Difference]: Finished difference Result 1334 states and 1633 transitions. [2023-11-29 03:25:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:25:05,044 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 416 [2023-11-29 03:25:05,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:05,048 INFO L225 Difference]: With dead ends: 1334 [2023-11-29 03:25:05,048 INFO L226 Difference]: Without dead ends: 1332 [2023-11-29 03:25:05,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:25:05,048 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 112 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:05,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 295 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 03:25:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2023-11-29 03:25:05,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1301. [2023-11-29 03:25:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1060 states have (on average 1.0575471698113208) internal successors, (1121), 1063 states have internal predecessors, (1121), 235 states have call successors, (235), 2 states have call predecessors, (235), 2 states have return successors, (235), 235 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-29 03:25:05,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1591 transitions. [2023-11-29 03:25:05,563 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1591 transitions. Word has length 416 [2023-11-29 03:25:05,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:05,564 INFO L495 AbstractCegarLoop]: Abstraction has 1301 states and 1591 transitions. [2023-11-29 03:25:05,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 03:25:05,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1591 transitions. [2023-11-29 03:25:05,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-11-29 03:25:05,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:05,567 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:05,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 03:25:05,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 03:25:05,768 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:05,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:05,768 INFO L85 PathProgramCache]: Analyzing trace with hash 392281011, now seen corresponding path program 4 times [2023-11-29 03:25:05,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:05,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518731635] [2023-11-29 03:25:05,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:05,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:05,780 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:05,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120098711] [2023-11-29 03:25:05,780 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:25:05,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:05,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:05,782 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:05,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 03:25:05,895 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:25:05,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:05,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:25:05,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:06,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4440 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 3624 trivial. 0 not checked. [2023-11-29 03:25:06,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4440 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 3624 trivial. 0 not checked. [2023-11-29 03:25:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518731635] [2023-11-29 03:25:06,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120098711] [2023-11-29 03:25:06,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120098711] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:06,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:06,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-11-29 03:25:06,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725553688] [2023-11-29 03:25:06,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:06,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 03:25:06,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:06,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 03:25:06,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=502, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:25:06,975 INFO L87 Difference]: Start difference. First operand 1301 states and 1591 transitions. Second operand has 28 states, 27 states have (on average 14.592592592592593) internal successors, (394), 28 states have internal predecessors, (394), 27 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 27 states have call predecessors, (89), 27 states have call successors, (89) [2023-11-29 03:25:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:10,031 INFO L93 Difference]: Finished difference Result 2927 states and 3591 transitions. [2023-11-29 03:25:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 03:25:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 14.592592592592593) internal successors, (394), 28 states have internal predecessors, (394), 27 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 27 states have call predecessors, (89), 27 states have call successors, (89) Word has length 425 [2023-11-29 03:25:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:10,037 INFO L225 Difference]: With dead ends: 2927 [2023-11-29 03:25:10,037 INFO L226 Difference]: Without dead ends: 2825 [2023-11-29 03:25:10,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 870 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=865, Invalid=1585, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 03:25:10,038 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1695 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:10,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 662 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:25:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2023-11-29 03:25:10,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1723. [2023-11-29 03:25:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1405 states have (on average 1.0491103202846974) internal successors, (1474), 1408 states have internal predecessors, (1474), 312 states have call successors, (312), 2 states have call predecessors, (312), 2 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 03:25:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2098 transitions. [2023-11-29 03:25:10,871 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2098 transitions. Word has length 425 [2023-11-29 03:25:10,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:10,871 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2098 transitions. [2023-11-29 03:25:10,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 14.592592592592593) internal successors, (394), 28 states have internal predecessors, (394), 27 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 27 states have call predecessors, (89), 27 states have call successors, (89) [2023-11-29 03:25:10,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2098 transitions. [2023-11-29 03:25:10,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-11-29 03:25:10,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:10,875 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 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] [2023-11-29 03:25:10,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 03:25:11,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 03:25:11,076 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:11,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:11,076 INFO L85 PathProgramCache]: Analyzing trace with hash 232671760, now seen corresponding path program 3 times [2023-11-29 03:25:11,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:11,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593251641] [2023-11-29 03:25:11,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:11,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:11,088 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:11,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159414187] [2023-11-29 03:25:11,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:25:11,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:11,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:11,089 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:11,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 03:25:11,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:25:11,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:11,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:25:11,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4573 backedges. 623 proven. 62 refuted. 0 times theorem prover too weak. 3888 trivial. 0 not checked. [2023-11-29 03:25:12,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:13,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:13,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593251641] [2023-11-29 03:25:13,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:13,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159414187] [2023-11-29 03:25:13,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159414187] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:13,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:13,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 03:25:13,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846955760] [2023-11-29 03:25:13,089 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:13,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:25:13,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:25:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:25:13,091 INFO L87 Difference]: Start difference. First operand 1723 states and 2098 transitions. Second operand has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:25:16,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:16,210 INFO L93 Difference]: Finished difference Result 1725 states and 2098 transitions. [2023-11-29 03:25:16,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:25:16,210 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 428 [2023-11-29 03:25:16,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:16,214 INFO L225 Difference]: With dead ends: 1725 [2023-11-29 03:25:16,214 INFO L226 Difference]: Without dead ends: 1723 [2023-11-29 03:25:16,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:25:16,215 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 140 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:16,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 391 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:25:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-11-29 03:25:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1721. [2023-11-29 03:25:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1405 states have (on average 1.0341637010676157) internal successors, (1453), 1406 states have internal predecessors, (1453), 312 states have call successors, (312), 2 states have call predecessors, (312), 2 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 03:25:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2077 transitions. [2023-11-29 03:25:17,163 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2077 transitions. Word has length 428 [2023-11-29 03:25:17,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:17,163 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2077 transitions. [2023-11-29 03:25:17,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 4 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 03:25:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2077 transitions. [2023-11-29 03:25:17,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-11-29 03:25:17,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:17,167 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:17,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 03:25:17,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:17,368 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:17,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash 935591365, now seen corresponding path program 3 times [2023-11-29 03:25:17,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:17,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343359020] [2023-11-29 03:25:17,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:17,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:17,380 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:17,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121660444] [2023-11-29 03:25:17,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:25:17,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:17,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:17,382 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:17,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 03:25:17,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 03:25:17,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:17,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:25:17,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5082 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 4881 trivial. 0 not checked. [2023-11-29 03:25:17,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5082 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 4881 trivial. 0 not checked. [2023-11-29 03:25:17,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:17,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343359020] [2023-11-29 03:25:17,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:17,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121660444] [2023-11-29 03:25:17,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121660444] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:17,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:17,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:25:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29882206] [2023-11-29 03:25:17,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:17,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:25:17,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:17,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:25:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:25:17,980 INFO L87 Difference]: Start difference. First operand 1721 states and 2077 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 03:25:18,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:18,969 INFO L93 Difference]: Finished difference Result 1722 states and 2077 transitions. [2023-11-29 03:25:18,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:25:18,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 440 [2023-11-29 03:25:18,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:18,973 INFO L225 Difference]: With dead ends: 1722 [2023-11-29 03:25:18,973 INFO L226 Difference]: Without dead ends: 1721 [2023-11-29 03:25:18,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 870 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:25:18,973 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 198 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:18,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 345 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:25:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2023-11-29 03:25:19,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2023-11-29 03:25:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1405 states have (on average 1.0334519572953738) internal successors, (1452), 1406 states have internal predecessors, (1452), 312 states have call successors, (312), 2 states have call predecessors, (312), 2 states have return successors, (312), 312 states have call predecessors, (312), 312 states have call successors, (312) [2023-11-29 03:25:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2076 transitions. [2023-11-29 03:25:19,769 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2076 transitions. Word has length 440 [2023-11-29 03:25:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:19,769 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2076 transitions. [2023-11-29 03:25:19,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 03:25:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2076 transitions. [2023-11-29 03:25:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2023-11-29 03:25:19,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:19,775 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:19,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 03:25:19,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:19,975 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:19,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1798959153, now seen corresponding path program 5 times [2023-11-29 03:25:19,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:19,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523799271] [2023-11-29 03:25:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:19,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:19,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297666122] [2023-11-29 03:25:19,991 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:25:19,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:19,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:19,992 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:19,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 03:25:20,195 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-11-29 03:25:20,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:20,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:25:20,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7413 backedges. 1266 proven. 1011 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2023-11-29 03:25:20,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7413 backedges. 965 proven. 201 refuted. 0 times theorem prover too weak. 6247 trivial. 0 not checked. [2023-11-29 03:25:21,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:21,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523799271] [2023-11-29 03:25:21,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:21,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297666122] [2023-11-29 03:25:21,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297666122] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:21,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:21,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 28 [2023-11-29 03:25:21,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421563253] [2023-11-29 03:25:21,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:21,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 03:25:21,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:21,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 03:25:21,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:25:21,552 INFO L87 Difference]: Start difference. First operand 1721 states and 2076 transitions. Second operand has 28 states, 28 states have (on average 13.821428571428571) internal successors, (387), 28 states have internal predecessors, (387), 25 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 25 states have call predecessors, (90), 25 states have call successors, (90) [2023-11-29 03:25:26,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:26,332 INFO L93 Difference]: Finished difference Result 3596 states and 4324 transitions. [2023-11-29 03:25:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 03:25:26,333 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.821428571428571) internal successors, (387), 28 states have internal predecessors, (387), 25 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 25 states have call predecessors, (90), 25 states have call successors, (90) Word has length 539 [2023-11-29 03:25:26,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:26,338 INFO L225 Difference]: With dead ends: 3596 [2023-11-29 03:25:26,338 INFO L226 Difference]: Without dead ends: 2246 [2023-11-29 03:25:26,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=848, Invalid=3058, Unknown=0, NotChecked=0, Total=3906 [2023-11-29 03:25:26,341 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 722 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:26,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1783 Invalid, 3996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3765 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 03:25:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2023-11-29 03:25:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 1813. [2023-11-29 03:25:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1481 states have (on average 1.037137069547603) internal successors, (1536), 1482 states have internal predecessors, (1536), 328 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (328), 328 states have call predecessors, (328), 328 states have call successors, (328) [2023-11-29 03:25:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2192 transitions. [2023-11-29 03:25:27,252 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2192 transitions. Word has length 539 [2023-11-29 03:25:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:27,252 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 2192 transitions. [2023-11-29 03:25:27,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.821428571428571) internal successors, (387), 28 states have internal predecessors, (387), 25 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 25 states have call predecessors, (90), 25 states have call successors, (90) [2023-11-29 03:25:27,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2192 transitions. [2023-11-29 03:25:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2023-11-29 03:25:27,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:27,257 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:27,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 03:25:27,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 03:25:27,458 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:27,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2140730869, now seen corresponding path program 6 times [2023-11-29 03:25:27,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:27,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557686985] [2023-11-29 03:25:27,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:27,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:27,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:27,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453069711] [2023-11-29 03:25:27,473 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:25:27,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:27,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:27,474 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:27,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 03:25:27,596 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-11-29 03:25:27,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:27,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:25:27,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 8576 backedges. 1138 proven. 69 refuted. 0 times theorem prover too weak. 7369 trivial. 0 not checked. [2023-11-29 03:25:30,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:30,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:30,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557686985] [2023-11-29 03:25:30,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:30,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453069711] [2023-11-29 03:25:30,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453069711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:25:30,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:25:30,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:25:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70162725] [2023-11-29 03:25:30,367 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:30,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:25:30,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:30,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:25:30,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:25:30,369 INFO L87 Difference]: Start difference. First operand 1813 states and 2192 transitions. Second operand has 16 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 8 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 03:25:32,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:32,277 INFO L93 Difference]: Finished difference Result 1821 states and 2198 transitions. [2023-11-29 03:25:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:25:32,278 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 8 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) Word has length 577 [2023-11-29 03:25:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:32,282 INFO L225 Difference]: With dead ends: 1821 [2023-11-29 03:25:32,282 INFO L226 Difference]: Without dead ends: 1667 [2023-11-29 03:25:32,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:25:32,283 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 52 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:32,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 381 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:25:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2023-11-29 03:25:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1662. [2023-11-29 03:25:33,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1357 states have (on average 1.0309506263817243) internal successors, (1399), 1358 states have internal predecessors, (1399), 301 states have call successors, (301), 2 states have call predecessors, (301), 2 states have return successors, (301), 301 states have call predecessors, (301), 301 states have call successors, (301) [2023-11-29 03:25:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2001 transitions. [2023-11-29 03:25:33,196 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2001 transitions. Word has length 577 [2023-11-29 03:25:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:33,196 INFO L495 AbstractCegarLoop]: Abstraction has 1662 states and 2001 transitions. [2023-11-29 03:25:33,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 8 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 03:25:33,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2001 transitions. [2023-11-29 03:25:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2023-11-29 03:25:33,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:33,202 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:33,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2023-11-29 03:25:33,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 03:25:33,402 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:33,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:33,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1321455129, now seen corresponding path program 7 times [2023-11-29 03:25:33,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:33,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487216862] [2023-11-29 03:25:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:33,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:33,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:33,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510740580] [2023-11-29 03:25:33,420 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 03:25:33,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:33,421 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:33,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 03:25:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:33,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:25:33,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 9825 backedges. 0 proven. 2001 refuted. 0 times theorem prover too weak. 7824 trivial. 0 not checked. [2023-11-29 03:25:34,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9825 backedges. 0 proven. 2001 refuted. 0 times theorem prover too weak. 7824 trivial. 0 not checked. [2023-11-29 03:25:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487216862] [2023-11-29 03:25:35,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510740580] [2023-11-29 03:25:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510740580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:35,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 37 [2023-11-29 03:25:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626320918] [2023-11-29 03:25:35,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:35,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 03:25:35,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:35,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 03:25:35,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=937, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:25:35,131 INFO L87 Difference]: Start difference. First operand 1662 states and 2001 transitions. Second operand has 38 states, 37 states have (on average 15.513513513513514) internal successors, (574), 38 states have internal predecessors, (574), 37 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 37 states have call predecessors, (129), 37 states have call successors, (129) [2023-11-29 03:25:38,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:38,733 INFO L93 Difference]: Finished difference Result 3082 states and 3708 transitions. [2023-11-29 03:25:38,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-29 03:25:38,734 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 15.513513513513514) internal successors, (574), 38 states have internal predecessors, (574), 37 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 37 states have call predecessors, (129), 37 states have call successors, (129) Word has length 615 [2023-11-29 03:25:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:38,737 INFO L225 Difference]: With dead ends: 3082 [2023-11-29 03:25:38,737 INFO L226 Difference]: Without dead ends: 2558 [2023-11-29 03:25:38,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1192 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1525 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1490, Invalid=2932, Unknown=0, NotChecked=0, Total=4422 [2023-11-29 03:25:38,739 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1628 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:38,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 937 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:25:38,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2023-11-29 03:25:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 1913. [2023-11-29 03:25:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1563 states have (on average 1.0313499680102367) internal successors, (1612), 1564 states have internal predecessors, (1612), 346 states have call successors, (346), 2 states have call predecessors, (346), 2 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2023-11-29 03:25:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2304 transitions. [2023-11-29 03:25:39,661 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2304 transitions. Word has length 615 [2023-11-29 03:25:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:39,661 INFO L495 AbstractCegarLoop]: Abstraction has 1913 states and 2304 transitions. [2023-11-29 03:25:39,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 15.513513513513514) internal successors, (574), 38 states have internal predecessors, (574), 37 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 37 states have call predecessors, (129), 37 states have call successors, (129) [2023-11-29 03:25:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2304 transitions. [2023-11-29 03:25:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2023-11-29 03:25:39,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:39,667 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:39,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 03:25:39,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 03:25:39,867 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:39,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2089334709, now seen corresponding path program 8 times [2023-11-29 03:25:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832208807] [2023-11-29 03:25:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:39,883 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:39,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479125050] [2023-11-29 03:25:39,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:25:39,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:39,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:39,884 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:39,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 03:25:40,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:25:40,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:40,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:25:40,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:25:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 11160 backedges. 3551 proven. 1509 refuted. 0 times theorem prover too weak. 6100 trivial. 0 not checked. [2023-11-29 03:25:40,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:25:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 11160 backedges. 743 proven. 1509 refuted. 0 times theorem prover too weak. 8908 trivial. 0 not checked. [2023-11-29 03:25:41,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:41,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832208807] [2023-11-29 03:25:41,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:25:41,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479125050] [2023-11-29 03:25:41,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479125050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:25:41,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:25:41,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 23 [2023-11-29 03:25:41,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679423327] [2023-11-29 03:25:41,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:25:41,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 03:25:41,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:41,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 03:25:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:25:41,112 INFO L87 Difference]: Start difference. First operand 1913 states and 2304 transitions. Second operand has 23 states, 23 states have (on average 16.0) internal successors, (368), 23 states have internal predecessors, (368), 21 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 21 states have call predecessors, (88), 21 states have call successors, (88) [2023-11-29 03:25:46,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:25:46,987 INFO L93 Difference]: Finished difference Result 3927 states and 4719 transitions. [2023-11-29 03:25:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-29 03:25:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 16.0) internal successors, (368), 23 states have internal predecessors, (368), 21 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 21 states have call predecessors, (88), 21 states have call successors, (88) Word has length 653 [2023-11-29 03:25:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:25:46,991 INFO L225 Difference]: With dead ends: 3927 [2023-11-29 03:25:46,991 INFO L226 Difference]: Without dead ends: 3159 [2023-11-29 03:25:46,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1347 GetRequests, 1279 SyntacticMatches, 9 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=673, Invalid=2987, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 03:25:46,993 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 526 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 4976 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 5101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 4976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:25:46,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 2779 Invalid, 5101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 4976 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 03:25:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2023-11-29 03:25:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2191. [2023-11-29 03:25:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1791 states have (on average 1.0307091010608598) internal successors, (1846), 1792 states have internal predecessors, (1846), 396 states have call successors, (396), 2 states have call predecessors, (396), 2 states have return successors, (396), 396 states have call predecessors, (396), 396 states have call successors, (396) [2023-11-29 03:25:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2638 transitions. [2023-11-29 03:25:48,098 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2638 transitions. Word has length 653 [2023-11-29 03:25:48,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:25:48,098 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2638 transitions. [2023-11-29 03:25:48,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 16.0) internal successors, (368), 23 states have internal predecessors, (368), 21 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 21 states have call predecessors, (88), 21 states have call successors, (88) [2023-11-29 03:25:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2638 transitions. [2023-11-29 03:25:48,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2023-11-29 03:25:48,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:25:48,105 INFO L195 NwaCegarLoop]: trace histogram [71, 71, 71, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:48,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 03:25:48,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 03:25:48,306 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:25:48,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:48,306 INFO L85 PathProgramCache]: Analyzing trace with hash 814510591, now seen corresponding path program 9 times [2023-11-29 03:25:48,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:48,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462465428] [2023-11-29 03:25:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:48,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:48,326 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:25:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911715135] [2023-11-29 03:25:48,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:25:48,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:25:48,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:25:48,328 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:25:48,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 03:25:48,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:25:48,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:25:48,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 03:25:48,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12581 backedges. 864 proven. 1608 refuted. 0 times theorem prover too weak. 10109 trivial. 0 not checked. [2023-11-29 03:26:05,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:26:06,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:06,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462465428] [2023-11-29 03:26:06,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:06,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911715135] [2023-11-29 03:26:06,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911715135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:26:06,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:26:06,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-11-29 03:26:06,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065540762] [2023-11-29 03:26:06,450 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:26:06,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 03:26:06,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 03:26:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=710, Unknown=5, NotChecked=0, Total=812 [2023-11-29 03:26:06,451 INFO L87 Difference]: Start difference. First operand 2191 states and 2638 transitions. Second operand has 23 states, 21 states have (on average 5.428571428571429) internal successors, (114), 21 states have internal predecessors, (114), 10 states have call successors, (24), 1 states have call predecessors, (24), 3 states have return successors, (24), 8 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-29 03:26:07,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:10,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:16,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:24,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:30,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:31,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:46,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:26:51,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:07,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:11,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:15,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:36,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:27:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:27:44,779 INFO L93 Difference]: Finished difference Result 2202 states and 2648 transitions. [2023-11-29 03:27:44,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 03:27:44,779 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.428571428571429) internal successors, (114), 21 states have internal predecessors, (114), 10 states have call successors, (24), 1 states have call predecessors, (24), 3 states have return successors, (24), 8 states have call predecessors, (24), 10 states have call successors, (24) Word has length 691 [2023-11-29 03:27:44,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:27:44,781 INFO L225 Difference]: With dead ends: 2202 [2023-11-29 03:27:44,781 INFO L226 Difference]: Without dead ends: 1053 [2023-11-29 03:27:44,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 48.0s TimeCoverageRelationStatistics Valid=330, Invalid=2015, Unknown=7, NotChecked=0, Total=2352 [2023-11-29 03:27:44,783 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 265 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 59 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:27:44,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 678 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1935 Invalid, 15 Unknown, 0 Unchecked, 57.7s Time] [2023-11-29 03:27:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-11-29 03:27:44,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 438. [2023-11-29 03:27:44,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 354 states have (on average 1.0141242937853108) internal successors, (359), 354 states have internal predecessors, (359), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 03:27:44,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 521 transitions. [2023-11-29 03:27:44,996 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 521 transitions. Word has length 691 [2023-11-29 03:27:44,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:27:44,997 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 521 transitions. [2023-11-29 03:27:44,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.428571428571429) internal successors, (114), 21 states have internal predecessors, (114), 10 states have call successors, (24), 1 states have call predecessors, (24), 3 states have return successors, (24), 8 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-29 03:27:44,997 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 521 transitions. [2023-11-29 03:27:45,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2023-11-29 03:27:45,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:27:45,002 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 78, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 3, 3, 3, 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] [2023-11-29 03:27:45,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2023-11-29 03:27:45,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 03:27:45,203 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:27:45,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:27:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2093934804, now seen corresponding path program 1 times [2023-11-29 03:27:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:27:45,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173520273] [2023-11-29 03:27:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:45,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:27:45,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:27:45,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457912522] [2023-11-29 03:27:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:45,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:27:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:27:45,226 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:27:45,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 03:27:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:27:45,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:27:45,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:27:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 15463 backedges. 5211 proven. 2067 refuted. 0 times theorem prover too weak. 8185 trivial. 0 not checked. [2023-11-29 03:27:45,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:27:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 15463 backedges. 1243 proven. 2067 refuted. 0 times theorem prover too weak. 12153 trivial. 0 not checked. [2023-11-29 03:27:46,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:46,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173520273] [2023-11-29 03:27:46,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:27:46,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457912522] [2023-11-29 03:27:46,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457912522] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:46,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:46,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 26 [2023-11-29 03:27:46,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113631262] [2023-11-29 03:27:46,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:46,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 03:27:46,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 03:27:46,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:27:46,707 INFO L87 Difference]: Start difference. First operand 438 states and 521 transitions. Second operand has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 26 states have internal predecessors, (409), 24 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) [2023-11-29 03:27:50,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:27:50,036 INFO L93 Difference]: Finished difference Result 879 states and 1044 transitions. [2023-11-29 03:27:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 03:27:50,036 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 26 states have internal predecessors, (409), 24 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) Word has length 753 [2023-11-29 03:27:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:27:50,037 INFO L225 Difference]: With dead ends: 879 [2023-11-29 03:27:50,037 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 03:27:50,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1518 GetRequests, 1471 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=266, Invalid=1216, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 03:27:50,039 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 257 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 4282 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 4362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:27:50,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 2351 Invalid, 4362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4282 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 03:27:50,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 03:27:50,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 460. [2023-11-29 03:27:50,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 372 states have (on average 1.010752688172043) internal successors, (376), 372 states have internal predecessors, (376), 85 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 03:27:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 546 transitions. [2023-11-29 03:27:50,262 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 546 transitions. Word has length 753 [2023-11-29 03:27:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:27:50,262 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 546 transitions. [2023-11-29 03:27:50,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 26 states have internal predecessors, (409), 24 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) [2023-11-29 03:27:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 546 transitions. [2023-11-29 03:27:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2023-11-29 03:27:50,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:27:50,269 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 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] [2023-11-29 03:27:50,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 03:27:50,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 03:27:50,470 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:27:50,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:27:50,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1288623840, now seen corresponding path program 2 times [2023-11-29 03:27:50,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:27:50,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935597390] [2023-11-29 03:27:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:27:50,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:27:50,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624692080] [2023-11-29 03:27:50,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:27:50,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:27:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:27:50,497 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:27:50,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 03:27:50,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:27:50,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:27:50,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:27:50,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:27:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 17134 backedges. 4421 proven. 2713 refuted. 0 times theorem prover too weak. 10000 trivial. 0 not checked. [2023-11-29 03:27:51,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:27:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 17134 backedges. 1061 proven. 2713 refuted. 0 times theorem prover too weak. 13360 trivial. 0 not checked. [2023-11-29 03:27:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:52,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935597390] [2023-11-29 03:27:52,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:27:52,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624692080] [2023-11-29 03:27:52,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624692080] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:52,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:52,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 29 [2023-11-29 03:27:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629120520] [2023-11-29 03:27:52,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:52,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 03:27:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:52,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 03:27:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:27:52,317 INFO L87 Difference]: Start difference. First operand 460 states and 546 transitions. Second operand has 29 states, 29 states have (on average 15.96551724137931) internal successors, (463), 29 states have internal predecessors, (463), 27 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 27 states have call predecessors, (108), 27 states have call successors, (108) [2023-11-29 03:27:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:27:55,983 INFO L93 Difference]: Finished difference Result 923 states and 1094 transitions. [2023-11-29 03:27:55,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 03:27:55,984 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 15.96551724137931) internal successors, (463), 29 states have internal predecessors, (463), 27 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 27 states have call predecessors, (108), 27 states have call successors, (108) Word has length 791 [2023-11-29 03:27:55,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:27:55,985 INFO L225 Difference]: With dead ends: 923 [2023-11-29 03:27:55,985 INFO L226 Difference]: Without dead ends: 491 [2023-11-29 03:27:55,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1596 GetRequests, 1543 SyntacticMatches, 11 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=328, Invalid=1564, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 03:27:55,986 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 283 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 5270 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 5357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 5270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:27:55,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 2851 Invalid, 5357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 5270 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 03:27:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-11-29 03:27:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 482. [2023-11-29 03:27:56,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 390 states have (on average 1.0076923076923077) internal successors, (393), 390 states have internal predecessors, (393), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 03:27:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 571 transitions. [2023-11-29 03:27:56,215 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 571 transitions. Word has length 791 [2023-11-29 03:27:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:27:56,215 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 571 transitions. [2023-11-29 03:27:56,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 15.96551724137931) internal successors, (463), 29 states have internal predecessors, (463), 27 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 27 states have call predecessors, (108), 27 states have call successors, (108) [2023-11-29 03:27:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 571 transitions. [2023-11-29 03:27:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2023-11-29 03:27:56,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:27:56,222 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 3, 3, 3, 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] [2023-11-29 03:27:56,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 03:27:56,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 03:27:56,422 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:27:56,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:27:56,423 INFO L85 PathProgramCache]: Analyzing trace with hash 97726356, now seen corresponding path program 3 times [2023-11-29 03:27:56,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:27:56,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723860998] [2023-11-29 03:27:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:56,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:27:56,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:27:56,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1711197037] [2023-11-29 03:27:56,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:27:56,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:27:56,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:27:56,447 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:27:56,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 03:27:56,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 03:27:56,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:27:56,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:27:56,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:27:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18891 backedges. 2039 proven. 408 refuted. 0 times theorem prover too weak. 16444 trivial. 0 not checked. [2023-11-29 03:27:57,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:27:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 18891 backedges. 2039 proven. 408 refuted. 0 times theorem prover too weak. 16444 trivial. 0 not checked. [2023-11-29 03:27:57,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723860998] [2023-11-29 03:27:57,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:27:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711197037] [2023-11-29 03:27:57,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711197037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:57,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:57,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 03:27:57,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131882442] [2023-11-29 03:27:57,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:57,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:27:57,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:57,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:27:57,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:27:57,764 INFO L87 Difference]: Start difference. First operand 482 states and 571 transitions. Second operand has 17 states, 16 states have (on average 10.375) internal successors, (166), 17 states have internal predecessors, (166), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) [2023-11-29 03:27:58,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:27:58,288 INFO L93 Difference]: Finished difference Result 496 states and 587 transitions. [2023-11-29 03:27:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:27:58,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.375) internal successors, (166), 17 states have internal predecessors, (166), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) Word has length 829 [2023-11-29 03:27:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:27:58,289 INFO L225 Difference]: With dead ends: 496 [2023-11-29 03:27:58,289 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:27:58,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1667 GetRequests, 1641 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:27:58,290 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 169 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:27:58,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 605 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:27:58,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:27:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:27:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:27:58,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 829 [2023-11-29 03:27:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:27:58,291 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:27:58,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.375) internal successors, (166), 17 states have internal predecessors, (166), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) [2023-11-29 03:27:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:27:58,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:27:58,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-29 03:27:58,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-29 03:27:58,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-29 03:27:58,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-29 03:27:58,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-29 03:27:58,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-29 03:27:58,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-29 03:27:58,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-29 03:27:58,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-29 03:27:58,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-29 03:27:58,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-29 03:27:58,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 03:27:58,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0918d2a6-3ab6-4e43-be5a-3e622e258663/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:27:58,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.