./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/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_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/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_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/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 9cf0abd1bd1b4ed3cb492af2ceaa5e063719310ace8aba62ab225fe204180938 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:01:29,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:01:29,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:01:29,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:01:29,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:01:29,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:01:29,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:01:29,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:01:29,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:01:29,634 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:01:29,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:01:29,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:01:29,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:01:29,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:01:29,637 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:01:29,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:01:29,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:01:29,639 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:01:29,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:01:29,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:01:29,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:01:29,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:01:29,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:01:29,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:01:29,643 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:01:29,643 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:01:29,644 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:01:29,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:01:29,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:01:29,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:01:29,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:01:29,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:01:29,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:01:29,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:01:29,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:01:29,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:01:29,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:01:29,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:01:29,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:01:29,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:01:29,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:01:29,649 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:01:29,649 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:01:29,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:01:29,649 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_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cf0abd1bd1b4ed3cb492af2ceaa5e063719310ace8aba62ab225fe204180938 [2023-11-29 06:01:29,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:01:29,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:01:29,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:01:29,974 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:01:29,975 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:01:29,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c [2023-11-29 06:01:33,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:01:33,376 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:01:33,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c [2023-11-29 06:01:33,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/data/7e7b46bd6/497fe10400724f1fa74c2f9e3c855f49/FLAG80fe84094 [2023-11-29 06:01:33,398 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/data/7e7b46bd6/497fe10400724f1fa74c2f9e3c855f49 [2023-11-29 06:01:33,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:01:33,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:01:33,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:01:33,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:01:33,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:01:33,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5234136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33, skipping insertion in model container [2023-11-29 06:01:33,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:01:33,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:01:33,634 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:01:33,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:01:33,706 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:01:33,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33 WrapperNode [2023-11-29 06:01:33,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:01:33,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:01:33,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:01:33,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:01:33,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,761 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-29 06:01:33,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:01:33,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:01:33,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:01:33,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:01:33,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,778 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,791 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:01:33,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:01:33,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:01:33,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:01:33,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:01:33,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (1/1) ... [2023-11-29 06:01:33,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:01:33,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:33,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:01:33,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:01:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:01:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:01:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:01:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:01:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:01:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:01:33,951 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:01:33,954 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:01:34,198 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:01:34,228 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:01:34,228 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:01:34,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:01:34 BoogieIcfgContainer [2023-11-29 06:01:34,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:01:34,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:01:34,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:01:34,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:01:34,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:01:33" (1/3) ... [2023-11-29 06:01:34,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1411c94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:01:34, skipping insertion in model container [2023-11-29 06:01:34,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:01:33" (2/3) ... [2023-11-29 06:01:34,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1411c94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:01:34, skipping insertion in model container [2023-11-29 06:01:34,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:01:34" (3/3) ... [2023-11-29 06:01:34,238 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound50.c [2023-11-29 06:01:34,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:01:34,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-29 06:01:34,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:01:34,314 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;@12ff97c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:01:34,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-29 06:01:34,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 81 states have internal predecessors, (89), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:01:34,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 06:01:34,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:34,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:01:34,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:34,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash 170085917, now seen corresponding path program 1 times [2023-11-29 06:01:34,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:34,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243729294] [2023-11-29 06:01:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:34,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:34,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:34,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243729294] [2023-11-29 06:01:34,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243729294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:34,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:34,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:34,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795992159] [2023-11-29 06:01:34,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:34,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:01:34,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:34,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:01:34,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:01:34,518 INFO L87 Difference]: Start difference. First operand has 90 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 81 states have internal predecessors, (89), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:34,557 INFO L93 Difference]: Finished difference Result 178 states and 210 transitions. [2023-11-29 06:01:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:01:34,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 06:01:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:34,568 INFO L225 Difference]: With dead ends: 178 [2023-11-29 06:01:34,569 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 06:01:34,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:01:34,577 INFO L413 NwaCegarLoop]: 97 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, 97 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:34,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 06:01:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-29 06:01:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 79 states have internal predecessors, (83), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:01:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-11-29 06:01:34,624 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 5 [2023-11-29 06:01:34,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:34,625 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-11-29 06:01:34,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-11-29 06:01:34,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 06:01:34,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:34,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:01:34,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:01:34,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:34,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:34,627 INFO L85 PathProgramCache]: Analyzing trace with hash 170145499, now seen corresponding path program 1 times [2023-11-29 06:01:34,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:34,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390209685] [2023-11-29 06:01:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:34,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:34,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:34,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390209685] [2023-11-29 06:01:34,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390209685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:34,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:34,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:34,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494509606] [2023-11-29 06:01:34,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:34,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:34,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:34,733 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:34,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:34,793 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2023-11-29 06:01:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:01:34,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 06:01:34,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:34,796 INFO L225 Difference]: With dead ends: 101 [2023-11-29 06:01:34,796 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 06:01:34,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:34,799 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:34,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 264 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 06:01:34,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 06:01:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 50 states have (on average 1.74) internal successors, (87), 83 states have internal predecessors, (87), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:01:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2023-11-29 06:01:34,814 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 5 [2023-11-29 06:01:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:34,814 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2023-11-29 06:01:34,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:34,815 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2023-11-29 06:01:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 06:01:34,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:34,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:34,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:01:34,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:34,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash 743199255, now seen corresponding path program 1 times [2023-11-29 06:01:34,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:34,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961398679] [2023-11-29 06:01:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:34,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:34,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:34,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723218687] [2023-11-29 06:01:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:34,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:34,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:34,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:34,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:01:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:34,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:01:34,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:35,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:35,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:35,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:35,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961398679] [2023-11-29 06:01:35,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:35,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723218687] [2023-11-29 06:01:35,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723218687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:35,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:35,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:35,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009706288] [2023-11-29 06:01:35,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:35,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:35,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:35,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:35,041 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:35,202 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2023-11-29 06:01:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:01:35,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 06:01:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:35,204 INFO L225 Difference]: With dead ends: 91 [2023-11-29 06:01:35,204 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 06:01:35,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:35,206 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 67 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:35,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 99 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:35,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 06:01:35,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-29 06:01:35,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 50 states have (on average 1.64) internal successors, (82), 78 states have internal predecessors, (82), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:01:35,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2023-11-29 06:01:35,220 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 8 [2023-11-29 06:01:35,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:35,220 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2023-11-29 06:01:35,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2023-11-29 06:01:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 06:01:35,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:35,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:35,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:35,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:35,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:35,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1564340482, now seen corresponding path program 1 times [2023-11-29 06:01:35,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:35,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502542091] [2023-11-29 06:01:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:35,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:35,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101421370] [2023-11-29 06:01:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:35,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:35,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:35,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:35,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:01:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:35,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:01:35,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:35,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502542091] [2023-11-29 06:01:35,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101421370] [2023-11-29 06:01:35,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101421370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:35,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:35,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:35,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000396511] [2023-11-29 06:01:35,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:35,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:35,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:35,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:35,621 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:35,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:35,791 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2023-11-29 06:01:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:35,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 06:01:35,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:35,793 INFO L225 Difference]: With dead ends: 108 [2023-11-29 06:01:35,793 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 06:01:35,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:35,795 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:35,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 132 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 06:01:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 88. [2023-11-29 06:01:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 80 states have internal predecessors, (84), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:01:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-11-29 06:01:35,807 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 9 [2023-11-29 06:01:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:35,808 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-11-29 06:01:35,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:01:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-11-29 06:01:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 06:01:35,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:35,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:35,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:36,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:36,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:36,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:36,015 INFO L85 PathProgramCache]: Analyzing trace with hash 148914924, now seen corresponding path program 1 times [2023-11-29 06:01:36,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819772688] [2023-11-29 06:01:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:36,028 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:36,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612750675] [2023-11-29 06:01:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:36,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:36,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:36,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:36,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:01:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:36,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:01:36,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:36,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:36,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819772688] [2023-11-29 06:01:36,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612750675] [2023-11-29 06:01:36,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612750675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:36,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:36,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:36,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527109698] [2023-11-29 06:01:36,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:36,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:36,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:36,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:36,192 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:36,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:36,373 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2023-11-29 06:01:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:36,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-29 06:01:36,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:36,375 INFO L225 Difference]: With dead ends: 151 [2023-11-29 06:01:36,376 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 06:01:36,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:36,377 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 129 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:36,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 136 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:01:36,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 06:01:36,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2023-11-29 06:01:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 79 states have (on average 1.6455696202531647) internal successors, (130), 107 states have internal predecessors, (130), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:01:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2023-11-29 06:01:36,393 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 154 transitions. Word has length 15 [2023-11-29 06:01:36,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:36,393 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 154 transitions. [2023-11-29 06:01:36,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:36,394 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2023-11-29 06:01:36,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 06:01:36,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:36,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:36,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:01:36,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:36,600 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:36,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:36,601 INFO L85 PathProgramCache]: Analyzing trace with hash 321395410, now seen corresponding path program 1 times [2023-11-29 06:01:36,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:36,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332365647] [2023-11-29 06:01:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:36,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:36,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:36,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291396317] [2023-11-29 06:01:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:36,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:36,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:36,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:01:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:36,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:01:36,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:36,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:36,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332365647] [2023-11-29 06:01:36,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291396317] [2023-11-29 06:01:36,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291396317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:36,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:36,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:36,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695977390] [2023-11-29 06:01:36,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:36,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:36,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:36,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:36,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:36,781 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:36,972 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2023-11-29 06:01:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:01:36,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-29 06:01:36,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:36,975 INFO L225 Difference]: With dead ends: 151 [2023-11-29 06:01:36,975 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 06:01:36,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:36,976 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 182 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:36,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 127 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:01:36,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 06:01:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2023-11-29 06:01:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.6125) internal successors, (129), 108 states have internal predecessors, (129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:01:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2023-11-29 06:01:36,989 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 16 [2023-11-29 06:01:36,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:36,990 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2023-11-29 06:01:36,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2023-11-29 06:01:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 06:01:36,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:36,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:36,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:01:37,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:01:37,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:37,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1373323182, now seen corresponding path program 1 times [2023-11-29 06:01:37,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:37,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748983171] [2023-11-29 06:01:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:37,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:37,214 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:37,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048368577] [2023-11-29 06:01:37,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:37,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:37,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:37,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:37,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:01:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:37,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:37,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:37,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:37,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:37,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748983171] [2023-11-29 06:01:37,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:37,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048368577] [2023-11-29 06:01:37,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048368577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:37,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:37,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:37,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635681501] [2023-11-29 06:01:37,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:37,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:37,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:37,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:37,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:37,328 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:37,447 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2023-11-29 06:01:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:37,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-29 06:01:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:37,449 INFO L225 Difference]: With dead ends: 144 [2023-11-29 06:01:37,449 INFO L226 Difference]: Without dead ends: 141 [2023-11-29 06:01:37,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 06:01:37,451 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 174 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:37,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 128 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:37,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-29 06:01:37,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 123. [2023-11-29 06:01:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.5802469135802468) internal successors, (128), 109 states have internal predecessors, (128), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:01:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2023-11-29 06:01:37,465 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 17 [2023-11-29 06:01:37,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:37,465 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2023-11-29 06:01:37,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2023-11-29 06:01:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:01:37,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:37,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:37,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:01:37,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 06:01:37,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:37,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -376654252, now seen corresponding path program 1 times [2023-11-29 06:01:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:37,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489535592] [2023-11-29 06:01:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:37,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:37,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:37,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520794936] [2023-11-29 06:01:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:37,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:37,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:37,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:37,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:01:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:37,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:37,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:01:37,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489535592] [2023-11-29 06:01:37,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520794936] [2023-11-29 06:01:37,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520794936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:37,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141134097] [2023-11-29 06:01:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:37,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:37,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:37,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:37,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:37,787 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:37,891 INFO L93 Difference]: Finished difference Result 141 states and 157 transitions. [2023-11-29 06:01:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:37,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-29 06:01:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:37,893 INFO L225 Difference]: With dead ends: 141 [2023-11-29 06:01:37,893 INFO L226 Difference]: Without dead ends: 134 [2023-11-29 06:01:37,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 06:01:37,894 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 167 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:37,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 131 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-29 06:01:37,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 120. [2023-11-29 06:01:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 78 states have (on average 1.564102564102564) internal successors, (122), 106 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:01:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2023-11-29 06:01:37,906 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 18 [2023-11-29 06:01:37,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:37,907 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2023-11-29 06:01:37,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:01:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2023-11-29 06:01:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 06:01:37,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:37,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:37,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:01:38,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,109 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:38,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:38,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1488714648, now seen corresponding path program 1 times [2023-11-29 06:01:38,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:38,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213393601] [2023-11-29 06:01:38,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:38,120 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:38,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434292741] [2023-11-29 06:01:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:38,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:38,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:01:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:38,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:38,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:38,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:38,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:38,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213393601] [2023-11-29 06:01:38,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:38,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434292741] [2023-11-29 06:01:38,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434292741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:38,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:38,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:38,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502098185] [2023-11-29 06:01:38,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:38,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:38,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:38,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:38,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:38,217 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:01:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:38,269 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2023-11-29 06:01:38,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:01:38,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-29 06:01:38,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:38,271 INFO L225 Difference]: With dead ends: 120 [2023-11-29 06:01:38,271 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 06:01:38,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:01:38,273 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 75 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:38,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 227 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 06:01:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-29 06:01:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 78 states have (on average 1.5256410256410255) internal successors, (119), 104 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:01:38,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2023-11-29 06:01:38,282 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 26 [2023-11-29 06:01:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:38,282 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2023-11-29 06:01:38,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:01:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2023-11-29 06:01:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 06:01:38,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:38,283 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:38,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:01:38,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,485 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:38,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1094486249, now seen corresponding path program 1 times [2023-11-29 06:01:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:38,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553426421] [2023-11-29 06:01:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:38,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:38,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680209695] [2023-11-29 06:01:38,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:38,495 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:38,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:01:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:38,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:38,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:38,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:38,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553426421] [2023-11-29 06:01:38,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680209695] [2023-11-29 06:01:38,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680209695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:38,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:38,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:38,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841693139] [2023-11-29 06:01:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:38,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:38,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:38,595 INFO L87 Difference]: Start difference. First operand 118 states and 143 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:01:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:38,662 INFO L93 Difference]: Finished difference Result 203 states and 237 transitions. [2023-11-29 06:01:38,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:01:38,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 06:01:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:38,664 INFO L225 Difference]: With dead ends: 203 [2023-11-29 06:01:38,665 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 06:01:38,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:01:38,666 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 6 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:38,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 387 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 06:01:38,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-29 06:01:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 85 states have (on average 1.4823529411764707) internal successors, (126), 111 states have internal predecessors, (126), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:01:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 150 transitions. [2023-11-29 06:01:38,677 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 150 transitions. Word has length 27 [2023-11-29 06:01:38,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:38,678 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 150 transitions. [2023-11-29 06:01:38,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:01:38,678 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 150 transitions. [2023-11-29 06:01:38,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 06:01:38,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:38,679 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:38,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:01:38,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,885 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:38,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:38,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1551781809, now seen corresponding path program 1 times [2023-11-29 06:01:38,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:38,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669884025] [2023-11-29 06:01:38,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:38,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:38,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173405212] [2023-11-29 06:01:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:38,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:38,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:38,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:38,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:01:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:38,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:01:38,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:01:39,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:39,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:39,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669884025] [2023-11-29 06:01:39,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:39,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173405212] [2023-11-29 06:01:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173405212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:39,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:39,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187646493] [2023-11-29 06:01:39,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:39,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:39,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:39,016 INFO L87 Difference]: Start difference. First operand 126 states and 150 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:01:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:39,136 INFO L93 Difference]: Finished difference Result 214 states and 258 transitions. [2023-11-29 06:01:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-29 06:01:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:39,138 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:01:39,138 INFO L226 Difference]: Without dead ends: 210 [2023-11-29 06:01:39,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 06:01:39,139 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:39,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 103 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-29 06:01:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 178. [2023-11-29 06:01:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 129 states have (on average 1.4728682170542635) internal successors, (190), 155 states have internal predecessors, (190), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:01:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 230 transitions. [2023-11-29 06:01:39,155 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 230 transitions. Word has length 30 [2023-11-29 06:01:39,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:39,155 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 230 transitions. [2023-11-29 06:01:39,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:01:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 230 transitions. [2023-11-29 06:01:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 06:01:39,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:39,157 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:39,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:01:39,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:01:39,359 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:39,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1006062636, now seen corresponding path program 1 times [2023-11-29 06:01:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:39,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823852024] [2023-11-29 06:01:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:39,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:39,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205310922] [2023-11-29 06:01:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:39,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:39,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:39,370 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:39,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:01:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:39,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:39,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:39,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:39,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:39,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823852024] [2023-11-29 06:01:39,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:39,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205310922] [2023-11-29 06:01:39,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205310922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:39,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:39,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:39,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700885321] [2023-11-29 06:01:39,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:39,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:39,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:39,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:39,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:39,476 INFO L87 Difference]: Start difference. First operand 178 states and 230 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:39,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:39,616 INFO L93 Difference]: Finished difference Result 214 states and 259 transitions. [2023-11-29 06:01:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:39,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-11-29 06:01:39,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:39,618 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:01:39,618 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 06:01:39,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 06:01:39,619 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 164 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:39,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 84 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:39,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 06:01:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 180. [2023-11-29 06:01:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 131 states have (on average 1.450381679389313) internal successors, (190), 157 states have internal predecessors, (190), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:01:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 230 transitions. [2023-11-29 06:01:39,638 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 230 transitions. Word has length 50 [2023-11-29 06:01:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:39,638 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 230 transitions. [2023-11-29 06:01:39,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 230 transitions. [2023-11-29 06:01:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 06:01:39,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:39,640 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:39,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:01:39,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:01:39,846 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:39,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1123170539, now seen corresponding path program 1 times [2023-11-29 06:01:39,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:39,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334851510] [2023-11-29 06:01:39,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:39,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:39,856 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:39,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286893868] [2023-11-29 06:01:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:39,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:39,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:39,858 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:39,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:01:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:39,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:39,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:39,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:39,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:39,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334851510] [2023-11-29 06:01:39,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:39,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286893868] [2023-11-29 06:01:39,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286893868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:39,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:39,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:39,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110615358] [2023-11-29 06:01:39,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:39,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:39,965 INFO L87 Difference]: Start difference. First operand 180 states and 230 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:40,102 INFO L93 Difference]: Finished difference Result 214 states and 255 transitions. [2023-11-29 06:01:40,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:40,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2023-11-29 06:01:40,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:40,105 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:01:40,105 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 06:01:40,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 06:01:40,106 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 159 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:40,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 86 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 06:01:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 182. [2023-11-29 06:01:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 159 states have internal predecessors, (190), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:01:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 230 transitions. [2023-11-29 06:01:40,124 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 230 transitions. Word has length 51 [2023-11-29 06:01:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:40,124 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 230 transitions. [2023-11-29 06:01:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 230 transitions. [2023-11-29 06:01:40,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:01:40,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:40,126 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:40,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:01:40,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:01:40,326 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:40,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1330093203, now seen corresponding path program 1 times [2023-11-29 06:01:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204495867] [2023-11-29 06:01:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:40,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:40,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045754044] [2023-11-29 06:01:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:40,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:40,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:40,335 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:40,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:01:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:40,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:40,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:40,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:40,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:40,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204495867] [2023-11-29 06:01:40,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:40,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045754044] [2023-11-29 06:01:40,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045754044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:40,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:40,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:01:40,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525468299] [2023-11-29 06:01:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:40,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:01:40,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:01:40,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:40,420 INFO L87 Difference]: Start difference. First operand 182 states and 230 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:40,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:40,488 INFO L93 Difference]: Finished difference Result 189 states and 230 transitions. [2023-11-29 06:01:40,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:01:40,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-29 06:01:40,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:40,491 INFO L225 Difference]: With dead ends: 189 [2023-11-29 06:01:40,491 INFO L226 Difference]: Without dead ends: 188 [2023-11-29 06:01:40,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:01:40,492 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 17 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:40,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 135 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:01:40,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-29 06:01:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2023-11-29 06:01:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 133 states have (on average 1.4210526315789473) internal successors, (189), 159 states have internal predecessors, (189), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:01:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 229 transitions. [2023-11-29 06:01:40,510 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 229 transitions. Word has length 53 [2023-11-29 06:01:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:40,510 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 229 transitions. [2023-11-29 06:01:40,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 229 transitions. [2023-11-29 06:01:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:01:40,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:40,512 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:40,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 06:01:40,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:01:40,715 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:40,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:40,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1716785083, now seen corresponding path program 1 times [2023-11-29 06:01:40,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:40,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421587014] [2023-11-29 06:01:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:40,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:40,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:40,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793629715] [2023-11-29 06:01:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:40,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:40,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:40,726 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:40,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:01:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:40,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:40,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:40,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:40,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:40,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421587014] [2023-11-29 06:01:40,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:40,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793629715] [2023-11-29 06:01:40,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793629715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:40,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:40,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:01:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068139388] [2023-11-29 06:01:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:40,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:01:40,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:40,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:01:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:01:40,885 INFO L87 Difference]: Start difference. First operand 182 states and 229 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:41,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:41,153 INFO L93 Difference]: Finished difference Result 262 states and 308 transitions. [2023-11-29 06:01:41,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:01:41,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-29 06:01:41,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:41,155 INFO L225 Difference]: With dead ends: 262 [2023-11-29 06:01:41,155 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 06:01:41,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:01:41,157 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 301 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:41,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 269 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:01:41,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 06:01:41,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 217. [2023-11-29 06:01:41,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 163 states have (on average 1.4294478527607362) internal successors, (233), 189 states have internal predecessors, (233), 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 06:01:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 283 transitions. [2023-11-29 06:01:41,172 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 283 transitions. Word has length 54 [2023-11-29 06:01:41,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:41,173 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 283 transitions. [2023-11-29 06:01:41,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:41,173 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 283 transitions. [2023-11-29 06:01:41,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:01:41,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:41,174 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:41,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:41,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:01:41,376 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:41,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:41,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1716783801, now seen corresponding path program 1 times [2023-11-29 06:01:41,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:41,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716534964] [2023-11-29 06:01:41,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:41,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:41,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:41,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679689689] [2023-11-29 06:01:41,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:41,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:41,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:41,386 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:41,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:01:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:41,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:01:41,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:41,489 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:41,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:41,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:41,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716534964] [2023-11-29 06:01:41,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:41,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679689689] [2023-11-29 06:01:41,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679689689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:41,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:41,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:41,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608121255] [2023-11-29 06:01:41,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:41,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:41,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:41,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:41,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:41,491 INFO L87 Difference]: Start difference. First operand 217 states and 283 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:41,640 INFO L93 Difference]: Finished difference Result 250 states and 310 transitions. [2023-11-29 06:01:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:01:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-29 06:01:41,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:41,643 INFO L225 Difference]: With dead ends: 250 [2023-11-29 06:01:41,643 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 06:01:41,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 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 06:01:41,644 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 154 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:41,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 119 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 06:01:41,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 221. [2023-11-29 06:01:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 167 states have (on average 1.4191616766467066) internal successors, (237), 193 states have internal predecessors, (237), 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 06:01:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 287 transitions. [2023-11-29 06:01:41,660 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 287 transitions. Word has length 54 [2023-11-29 06:01:41,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:41,660 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 287 transitions. [2023-11-29 06:01:41,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 287 transitions. [2023-11-29 06:01:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 06:01:41,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:41,661 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:41,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:01:41,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:01:41,862 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:41,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:41,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1680690415, now seen corresponding path program 1 times [2023-11-29 06:01:41,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:41,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760964083] [2023-11-29 06:01:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:41,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:41,870 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:41,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090673375] [2023-11-29 06:01:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:41,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:41,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:41,872 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:41,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:01:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:41,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:41,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:42,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:42,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:42,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760964083] [2023-11-29 06:01:42,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:42,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090673375] [2023-11-29 06:01:42,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090673375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:42,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:42,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:42,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141591966] [2023-11-29 06:01:42,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:42,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:42,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:42,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:42,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:42,014 INFO L87 Difference]: Start difference. First operand 221 states and 287 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:42,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:42,089 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2023-11-29 06:01:42,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:42,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-11-29 06:01:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:42,091 INFO L225 Difference]: With dead ends: 221 [2023-11-29 06:01:42,091 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 06:01:42,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 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 06:01:42,092 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 51 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:42,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 87 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:42,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 06:01:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-29 06:01:42,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 167 states have (on average 1.401197604790419) internal successors, (234), 192 states have internal predecessors, (234), 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 06:01:42,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 284 transitions. [2023-11-29 06:01:42,112 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 284 transitions. Word has length 55 [2023-11-29 06:01:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:42,113 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 284 transitions. [2023-11-29 06:01:42,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:42,113 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 284 transitions. [2023-11-29 06:01:42,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:01:42,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:42,114 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 06:01:42,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:01:42,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 06:01:42,320 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:42,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash 561795451, now seen corresponding path program 1 times [2023-11-29 06:01:42,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:42,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462262091] [2023-11-29 06:01:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:42,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:42,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:42,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014854438] [2023-11-29 06:01:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:42,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:42,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:42,331 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:42,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:01:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:42,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:01:42,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:42,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:42,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:42,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462262091] [2023-11-29 06:01:42,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:42,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014854438] [2023-11-29 06:01:42,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014854438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:42,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:42,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:01:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341155109] [2023-11-29 06:01:42,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:42,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:01:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:42,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:01:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:01:42,460 INFO L87 Difference]: Start difference. First operand 220 states and 284 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:42,555 INFO L93 Difference]: Finished difference Result 240 states and 296 transitions. [2023-11-29 06:01:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:01:42,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-29 06:01:42,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:42,557 INFO L225 Difference]: With dead ends: 240 [2023-11-29 06:01:42,557 INFO L226 Difference]: Without dead ends: 239 [2023-11-29 06:01:42,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 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 06:01:42,558 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 54 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:42,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 168 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-29 06:01:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 224. [2023-11-29 06:01:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 171 states have (on average 1.391812865497076) internal successors, (238), 196 states have internal predecessors, (238), 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 06:01:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2023-11-29 06:01:42,577 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 56 [2023-11-29 06:01:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:42,577 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2023-11-29 06:01:42,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:01:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2023-11-29 06:01:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 06:01:42,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:42,579 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1] [2023-11-29 06:01:42,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 06:01:42,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 06:01:42,779 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:42,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1039228013, now seen corresponding path program 1 times [2023-11-29 06:01:42,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:42,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613585459] [2023-11-29 06:01:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:42,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:42,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:42,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021645288] [2023-11-29 06:01:42,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:42,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:42,788 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:42,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:01:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:42,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:01:42,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:01:42,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:01:43,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613585459] [2023-11-29 06:01:43,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021645288] [2023-11-29 06:01:43,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021645288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:43,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:43,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 06:01:43,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751462179] [2023-11-29 06:01:43,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:43,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:01:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:43,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:01:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:01:43,017 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:01:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:43,232 INFO L93 Difference]: Finished difference Result 359 states and 440 transitions. [2023-11-29 06:01:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:01:43,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2023-11-29 06:01:43,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:43,235 INFO L225 Difference]: With dead ends: 359 [2023-11-29 06:01:43,235 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 06:01:43,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:01:43,236 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 112 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:43,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 694 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 06:01:43,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 307. [2023-11-29 06:01:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 268 states have internal predecessors, (331), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 06:01:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 401 transitions. [2023-11-29 06:01:43,257 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 401 transitions. Word has length 59 [2023-11-29 06:01:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:43,257 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 401 transitions. [2023-11-29 06:01:43,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:01:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 401 transitions. [2023-11-29 06:01:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 06:01:43,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:43,258 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 06:01:43,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 06:01:43,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:43,459 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:43,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:43,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1484644914, now seen corresponding path program 1 times [2023-11-29 06:01:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:43,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948828213] [2023-11-29 06:01:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:43,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920974485] [2023-11-29 06:01:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:43,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:43,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:43,468 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:43,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:01:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:43,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:01:43,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:01:43,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:43,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:43,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948828213] [2023-11-29 06:01:43,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:43,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920974485] [2023-11-29 06:01:43,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920974485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:43,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:43,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:01:43,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496741218] [2023-11-29 06:01:43,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:43,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:01:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:43,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:01:43,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:01:43,789 INFO L87 Difference]: Start difference. First operand 307 states and 401 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:44,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:44,230 INFO L93 Difference]: Finished difference Result 435 states and 540 transitions. [2023-11-29 06:01:44,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:01:44,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2023-11-29 06:01:44,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:44,235 INFO L225 Difference]: With dead ends: 435 [2023-11-29 06:01:44,235 INFO L226 Difference]: Without dead ends: 431 [2023-11-29 06:01:44,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:44,236 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 340 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:44,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 195 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:01:44,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-29 06:01:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 387. [2023-11-29 06:01:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 311 states have (on average 1.3729903536977492) internal successors, (427), 338 states have internal predecessors, (427), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 06:01:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 517 transitions. [2023-11-29 06:01:44,274 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 517 transitions. Word has length 68 [2023-11-29 06:01:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:44,274 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 517 transitions. [2023-11-29 06:01:44,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 517 transitions. [2023-11-29 06:01:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 06:01:44,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:44,275 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 06:01:44,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:44,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:44,480 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:44,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1220647984, now seen corresponding path program 1 times [2023-11-29 06:01:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:44,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678704631] [2023-11-29 06:01:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:44,490 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:44,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294378486] [2023-11-29 06:01:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:44,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:44,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:44,492 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:44,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:01:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:44,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:01:44,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:01:44,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:45,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:45,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678704631] [2023-11-29 06:01:45,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:45,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294378486] [2023-11-29 06:01:45,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294378486] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:45,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:45,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:01:45,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648115366] [2023-11-29 06:01:45,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:45,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:01:45,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:01:45,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:45,048 INFO L87 Difference]: Start difference. First operand 387 states and 517 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:45,533 INFO L93 Difference]: Finished difference Result 460 states and 583 transitions. [2023-11-29 06:01:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:01:45,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2023-11-29 06:01:45,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:45,538 INFO L225 Difference]: With dead ends: 460 [2023-11-29 06:01:45,538 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 06:01:45,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:01:45,539 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:45,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 209 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:01:45,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 06:01:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 418. [2023-11-29 06:01:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 338 states have (on average 1.3727810650887573) internal successors, (464), 364 states have internal predecessors, (464), 49 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 06:01:45,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 562 transitions. [2023-11-29 06:01:45,591 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 562 transitions. Word has length 69 [2023-11-29 06:01:45,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:45,592 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 562 transitions. [2023-11-29 06:01:45,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:45,592 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 562 transitions. [2023-11-29 06:01:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:01:45,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:45,593 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:45,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:45,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:45,794 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:45,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1468807026, now seen corresponding path program 1 times [2023-11-29 06:01:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844887925] [2023-11-29 06:01:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:45,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:45,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:45,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946149949] [2023-11-29 06:01:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:45,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:45,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:45,806 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:45,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:01:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:45,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:01:45,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:01:45,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:01:46,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:46,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844887925] [2023-11-29 06:01:46,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:46,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946149949] [2023-11-29 06:01:46,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946149949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:46,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:46,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 06:01:46,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329826185] [2023-11-29 06:01:46,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:46,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:01:46,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:46,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:01:46,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:01:46,117 INFO L87 Difference]: Start difference. First operand 418 states and 562 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:01:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:46,412 INFO L93 Difference]: Finished difference Result 801 states and 1046 transitions. [2023-11-29 06:01:46,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:01:46,412 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 70 [2023-11-29 06:01:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:46,416 INFO L225 Difference]: With dead ends: 801 [2023-11-29 06:01:46,416 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 06:01:46,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:01:46,418 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 133 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:46,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 689 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:01:46,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 06:01:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 504. [2023-11-29 06:01:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 411 states have (on average 1.3527980535279804) internal successors, (556), 436 states have internal predecessors, (556), 59 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 06:01:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 674 transitions. [2023-11-29 06:01:46,476 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 674 transitions. Word has length 70 [2023-11-29 06:01:46,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:46,477 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 674 transitions. [2023-11-29 06:01:46,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:01:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 674 transitions. [2023-11-29 06:01:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:01:46,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:46,478 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 06:01:46,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 06:01:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:46,679 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:46,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash -814618096, now seen corresponding path program 1 times [2023-11-29 06:01:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:46,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066844906] [2023-11-29 06:01:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:46,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:46,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737310249] [2023-11-29 06:01:46,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:46,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:46,691 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:46,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:01:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:46,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:01:46,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:01:46,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:01:46,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:46,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066844906] [2023-11-29 06:01:46,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:46,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737310249] [2023-11-29 06:01:46,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737310249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:01:46,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:01:46,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:01:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594305661] [2023-11-29 06:01:46,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:01:46,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:01:46,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:01:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:01:46,890 INFO L87 Difference]: Start difference. First operand 504 states and 674 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:47,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:47,272 INFO L93 Difference]: Finished difference Result 677 states and 891 transitions. [2023-11-29 06:01:47,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:01:47,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 70 [2023-11-29 06:01:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:47,278 INFO L225 Difference]: With dead ends: 677 [2023-11-29 06:01:47,278 INFO L226 Difference]: Without dead ends: 672 [2023-11-29 06:01:47,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 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 06:01:47,280 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 104 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:47,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 233 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:47,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-11-29 06:01:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 622. [2023-11-29 06:01:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 509 states have (on average 1.3634577603143418) internal successors, (694), 534 states have internal predecessors, (694), 79 states have call successors, (79), 8 states have call predecessors, (79), 8 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 06:01:47,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 852 transitions. [2023-11-29 06:01:47,352 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 852 transitions. Word has length 70 [2023-11-29 06:01:47,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:47,352 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 852 transitions. [2023-11-29 06:01:47,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 852 transitions. [2023-11-29 06:01:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 06:01:47,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:47,354 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1] [2023-11-29 06:01:47,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 06:01:47,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:47,555 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:47,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:47,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1711621802, now seen corresponding path program 1 times [2023-11-29 06:01:47,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:47,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200625229] [2023-11-29 06:01:47,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:47,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:47,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:47,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574786804] [2023-11-29 06:01:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:47,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:47,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:47,584 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:47,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:01:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:47,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:01:47,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:01:47,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:47,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200625229] [2023-11-29 06:01:47,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574786804] [2023-11-29 06:01:47,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574786804] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:47,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:47,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:01:47,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965577804] [2023-11-29 06:01:47,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:47,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:01:47,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:01:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:01:47,959 INFO L87 Difference]: Start difference. First operand 622 states and 852 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:48,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:48,367 INFO L93 Difference]: Finished difference Result 939 states and 1271 transitions. [2023-11-29 06:01:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:01:48,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2023-11-29 06:01:48,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:48,375 INFO L225 Difference]: With dead ends: 939 [2023-11-29 06:01:48,376 INFO L226 Difference]: Without dead ends: 935 [2023-11-29 06:01:48,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:01:48,377 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 270 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:48,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 273 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:48,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2023-11-29 06:01:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 753. [2023-11-29 06:01:48,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 620 states have (on average 1.364516129032258) internal successors, (846), 645 states have internal predecessors, (846), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:01:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1044 transitions. [2023-11-29 06:01:48,473 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1044 transitions. Word has length 71 [2023-11-29 06:01:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:48,473 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 1044 transitions. [2023-11-29 06:01:48,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:48,474 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1044 transitions. [2023-11-29 06:01:48,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 06:01:48,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:48,475 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 06:01:48,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 06:01:48,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:48,676 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:48,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash 516642866, now seen corresponding path program 1 times [2023-11-29 06:01:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908206387] [2023-11-29 06:01:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:48,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:48,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425653444] [2023-11-29 06:01:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:48,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:48,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:48,687 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:48,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:01:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:48,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:01:48,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:01:49,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:57,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:57,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908206387] [2023-11-29 06:01:57,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:57,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425653444] [2023-11-29 06:01:57,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425653444] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:57,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:01:57,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:01:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537499142] [2023-11-29 06:01:57,258 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:57,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:01:57,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:57,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:01:57,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=80, Unknown=2, NotChecked=0, Total=110 [2023-11-29 06:01:57,259 INFO L87 Difference]: Start difference. First operand 753 states and 1044 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:57,656 INFO L93 Difference]: Finished difference Result 785 states and 1058 transitions. [2023-11-29 06:01:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:01:57,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2023-11-29 06:01:57,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:57,661 INFO L225 Difference]: With dead ends: 785 [2023-11-29 06:01:57,661 INFO L226 Difference]: Without dead ends: 778 [2023-11-29 06:01:57,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=53, Invalid=155, Unknown=2, NotChecked=0, Total=210 [2023-11-29 06:01:57,663 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 268 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:57,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 276 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2023-11-29 06:01:57,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 751. [2023-11-29 06:01:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 618 states have (on average 1.3576051779935274) internal successors, (839), 643 states have internal predecessors, (839), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:01:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1037 transitions. [2023-11-29 06:01:57,750 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1037 transitions. Word has length 71 [2023-11-29 06:01:57,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:57,750 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 1037 transitions. [2023-11-29 06:01:57,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:01:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1037 transitions. [2023-11-29 06:01:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 06:01:57,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:57,752 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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 06:01:57,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 06:01:57,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 06:01:57,955 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:57,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2094134107, now seen corresponding path program 1 times [2023-11-29 06:01:57,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:57,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406097101] [2023-11-29 06:01:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:57,964 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:57,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069573607] [2023-11-29 06:01:57,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:57,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:57,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:57,965 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:57,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:01:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:58,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:01:58,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:01:58,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:01:58,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406097101] [2023-11-29 06:01:58,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069573607] [2023-11-29 06:01:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069573607] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:58,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:01:58,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14228428] [2023-11-29 06:01:58,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:58,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:01:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:01:58,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:58,224 INFO L87 Difference]: Start difference. First operand 751 states and 1037 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:01:58,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:58,714 INFO L93 Difference]: Finished difference Result 1194 states and 1641 transitions. [2023-11-29 06:01:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:01:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 91 [2023-11-29 06:01:58,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:58,721 INFO L225 Difference]: With dead ends: 1194 [2023-11-29 06:01:58,721 INFO L226 Difference]: Without dead ends: 1192 [2023-11-29 06:01:58,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 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 06:01:58,722 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 382 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:58,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 356 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:01:58,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2023-11-29 06:01:58,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 965. [2023-11-29 06:01:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 795 states have (on average 1.3635220125786163) internal successors, (1084), 819 states have internal predecessors, (1084), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:01:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1358 transitions. [2023-11-29 06:01:58,808 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1358 transitions. Word has length 91 [2023-11-29 06:01:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:58,808 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1358 transitions. [2023-11-29 06:01:58,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:01:58,808 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1358 transitions. [2023-11-29 06:01:58,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 06:01:58,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:58,809 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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 06:01:58,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 06:01:59,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:59,010 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:01:59,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:01:59,010 INFO L85 PathProgramCache]: Analyzing trace with hash 493647982, now seen corresponding path program 1 times [2023-11-29 06:01:59,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:01:59,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451048193] [2023-11-29 06:01:59,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:59,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:01:59,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:01:59,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782402783] [2023-11-29 06:01:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:01:59,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:01:59,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:01:59,021 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:01:59,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:01:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:01:59,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:01:59,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:01:59,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:01:59,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:01:59,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451048193] [2023-11-29 06:01:59,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:01:59,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782402783] [2023-11-29 06:01:59,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782402783] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:01:59,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:59,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:01:59,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916543387] [2023-11-29 06:01:59,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:59,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:01:59,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:01:59,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:01:59,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:01:59,308 INFO L87 Difference]: Start difference. First operand 965 states and 1358 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:01:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:01:59,726 INFO L93 Difference]: Finished difference Result 1199 states and 1617 transitions. [2023-11-29 06:01:59,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:01:59,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 92 [2023-11-29 06:01:59,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:01:59,731 INFO L225 Difference]: With dead ends: 1199 [2023-11-29 06:01:59,731 INFO L226 Difference]: Without dead ends: 1197 [2023-11-29 06:01:59,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 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 06:01:59,732 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 468 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:01:59,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 310 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:01:59,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2023-11-29 06:01:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 970. [2023-11-29 06:01:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 801 states have (on average 1.32334581772784) internal successors, (1060), 824 states have internal predecessors, (1060), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:01:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1334 transitions. [2023-11-29 06:01:59,798 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1334 transitions. Word has length 92 [2023-11-29 06:01:59,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:01:59,799 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1334 transitions. [2023-11-29 06:01:59,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:01:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1334 transitions. [2023-11-29 06:01:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:01:59,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:01:59,800 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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 06:01:59,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 06:02:00,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 06:02:00,000 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:00,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:00,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1949311622, now seen corresponding path program 1 times [2023-11-29 06:02:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:00,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515679322] [2023-11-29 06:02:00,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:00,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:00,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:00,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773964119] [2023-11-29 06:02:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:00,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:00,009 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:00,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 06:02:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:00,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:02:00,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:02:00,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:00,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515679322] [2023-11-29 06:02:00,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773964119] [2023-11-29 06:02:00,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773964119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:00,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:00,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:02:00,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273794001] [2023-11-29 06:02:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:00,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:02:00,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:02:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:02:00,157 INFO L87 Difference]: Start difference. First operand 970 states and 1334 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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 06:02:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:00,337 INFO L93 Difference]: Finished difference Result 975 states and 1334 transitions. [2023-11-29 06:02:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:02:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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 94 [2023-11-29 06:02:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:00,344 INFO L225 Difference]: With dead ends: 975 [2023-11-29 06:02:00,344 INFO L226 Difference]: Without dead ends: 974 [2023-11-29 06:02:00,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 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 06:02:00,345 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 24 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:00,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 226 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:02:00,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-11-29 06:02:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 969. [2023-11-29 06:02:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 801 states have (on average 1.317103620474407) internal successors, (1055), 823 states have internal predecessors, (1055), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:02:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1329 transitions. [2023-11-29 06:02:00,450 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1329 transitions. Word has length 94 [2023-11-29 06:02:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:00,450 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1329 transitions. [2023-11-29 06:02:00,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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 06:02:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1329 transitions. [2023-11-29 06:02:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:02:00,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:00,451 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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 06:02:00,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 06:02:00,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 06:02:00,652 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:00,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:00,653 INFO L85 PathProgramCache]: Analyzing trace with hash 299118272, now seen corresponding path program 1 times [2023-11-29 06:02:00,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:00,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646613183] [2023-11-29 06:02:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:00,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:00,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:00,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947042457] [2023-11-29 06:02:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:00,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:00,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:00,664 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:00,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:02:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:00,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:02:00,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:02:00,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:02:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646613183] [2023-11-29 06:02:00,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947042457] [2023-11-29 06:02:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947042457] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:02:00,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:02:00,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:02:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114273577] [2023-11-29 06:02:00,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:00,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:00,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:02:00,960 INFO L87 Difference]: Start difference. First operand 969 states and 1329 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:02:01,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:01,902 INFO L93 Difference]: Finished difference Result 1188 states and 1576 transitions. [2023-11-29 06:02:01,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:02:01,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 95 [2023-11-29 06:02:01,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:01,909 INFO L225 Difference]: With dead ends: 1188 [2023-11-29 06:02:01,909 INFO L226 Difference]: Without dead ends: 1187 [2023-11-29 06:02:01,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:02:01,911 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 345 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:01,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 527 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:02:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-29 06:02:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 977. [2023-11-29 06:02:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 809 states have (on average 1.3127317676143386) internal successors, (1062), 831 states have internal predecessors, (1062), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:02:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1336 transitions. [2023-11-29 06:02:02,022 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1336 transitions. Word has length 95 [2023-11-29 06:02:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:02,022 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1336 transitions. [2023-11-29 06:02:02,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:02:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1336 transitions. [2023-11-29 06:02:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 06:02:02,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:02,024 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1] [2023-11-29 06:02:02,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 06:02:02,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 06:02:02,225 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:02,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash -310145086, now seen corresponding path program 1 times [2023-11-29 06:02:02,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:02,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693515270] [2023-11-29 06:02:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:02,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:02,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:02,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786325133] [2023-11-29 06:02:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:02,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:02,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:02,237 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:02,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 06:02:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:02,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:02:02,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:02:02,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:02:02,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693515270] [2023-11-29 06:02:02,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786325133] [2023-11-29 06:02:02,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786325133] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:02:02,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:02:02,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:02:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669260776] [2023-11-29 06:02:02,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:02,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:02:02,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:02:02,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:02:02,575 INFO L87 Difference]: Start difference. First operand 977 states and 1336 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:02:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:03,857 INFO L93 Difference]: Finished difference Result 1240 states and 1644 transitions. [2023-11-29 06:02:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:02:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 97 [2023-11-29 06:02:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:03,863 INFO L225 Difference]: With dead ends: 1240 [2023-11-29 06:02:03,863 INFO L226 Difference]: Without dead ends: 1239 [2023-11-29 06:02:03,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:02:03,864 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 373 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:03,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 316 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:02:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-11-29 06:02:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1057. [2023-11-29 06:02:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 880 states have (on average 1.3136363636363637) internal successors, (1156), 902 states have internal predecessors, (1156), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2023-11-29 06:02:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1448 transitions. [2023-11-29 06:02:03,985 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1448 transitions. Word has length 97 [2023-11-29 06:02:03,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:03,985 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1448 transitions. [2023-11-29 06:02:03,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:02:03,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1448 transitions. [2023-11-29 06:02:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:02:03,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:03,987 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:03,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 06:02:04,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:04,188 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:04,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash -333473127, now seen corresponding path program 1 times [2023-11-29 06:02:04,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:04,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648815168] [2023-11-29 06:02:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:04,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:04,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:04,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721328897] [2023-11-29 06:02:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:04,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:04,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:04,197 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:04,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 06:02:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:04,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:02:04,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:02:04,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:02:04,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:04,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648815168] [2023-11-29 06:02:04,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:04,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721328897] [2023-11-29 06:02:04,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721328897] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:02:04,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:02:04,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-11-29 06:02:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744362678] [2023-11-29 06:02:04,544 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:04,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:02:04,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:04,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:02:04,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:02:04,545 INFO L87 Difference]: Start difference. First operand 1057 states and 1448 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 06:02:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:05,737 INFO L93 Difference]: Finished difference Result 1087 states and 1465 transitions. [2023-11-29 06:02:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:02:05,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 107 [2023-11-29 06:02:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:05,745 INFO L225 Difference]: With dead ends: 1087 [2023-11-29 06:02:05,745 INFO L226 Difference]: Without dead ends: 1086 [2023-11-29 06:02:05,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:02:05,746 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 434 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:05,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 315 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:02:05,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2023-11-29 06:02:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1019. [2023-11-29 06:02:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 848 states have (on average 1.3089622641509433) internal successors, (1110), 869 states have internal predecessors, (1110), 141 states have call successors, (141), 8 states have call predecessors, (141), 8 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 06:02:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1392 transitions. [2023-11-29 06:02:05,838 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1392 transitions. Word has length 107 [2023-11-29 06:02:05,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:05,838 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1392 transitions. [2023-11-29 06:02:05,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 06:02:05,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1392 transitions. [2023-11-29 06:02:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 06:02:05,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:05,840 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:05,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 06:02:06,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 06:02:06,047 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:06,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:06,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2097993323, now seen corresponding path program 1 times [2023-11-29 06:02:06,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:06,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398808967] [2023-11-29 06:02:06,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:06,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:06,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:06,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167394042] [2023-11-29 06:02:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:06,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:06,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:06,060 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:06,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 06:02:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:06,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:02:06,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:06,791 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:02:06,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:06,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:06,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398808967] [2023-11-29 06:02:06,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:06,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167394042] [2023-11-29 06:02:06,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167394042] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:06,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:06,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:02:06,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716287782] [2023-11-29 06:02:06,995 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:06,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:06,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:02:06,997 INFO L87 Difference]: Start difference. First operand 1019 states and 1392 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:02:08,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:08,685 INFO L93 Difference]: Finished difference Result 1823 states and 2486 transitions. [2023-11-29 06:02:08,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:02:08,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 109 [2023-11-29 06:02:08,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:08,698 INFO L225 Difference]: With dead ends: 1823 [2023-11-29 06:02:08,699 INFO L226 Difference]: Without dead ends: 1820 [2023-11-29 06:02:08,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:02:08,700 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 351 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:08,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 412 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:02:08,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2023-11-29 06:02:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1319. [2023-11-29 06:02:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1103 states have (on average 1.3218495013599274) internal successors, (1458), 1124 states have internal predecessors, (1458), 186 states have call successors, (186), 8 states have call predecessors, (186), 8 states have return successors, (186), 186 states have call predecessors, (186), 186 states have call successors, (186) [2023-11-29 06:02:08,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1830 transitions. [2023-11-29 06:02:08,878 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1830 transitions. Word has length 109 [2023-11-29 06:02:08,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:08,879 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1830 transitions. [2023-11-29 06:02:08,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:02:08,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1830 transitions. [2023-11-29 06:02:08,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:02:08,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:08,881 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:08,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:09,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 06:02:09,081 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:09,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:09,082 INFO L85 PathProgramCache]: Analyzing trace with hash -613283511, now seen corresponding path program 1 times [2023-11-29 06:02:09,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:09,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775308810] [2023-11-29 06:02:09,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:09,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:09,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:09,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109756975] [2023-11-29 06:02:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:09,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:09,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:09,092 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:09,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 06:02:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:09,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:02:09,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:02:09,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:10,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:10,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775308810] [2023-11-29 06:02:10,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:10,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109756975] [2023-11-29 06:02:10,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109756975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:10,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:10,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:02:10,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916908515] [2023-11-29 06:02:10,006 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:10,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:10,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:10,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:10,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:02:10,007 INFO L87 Difference]: Start difference. First operand 1319 states and 1830 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:02:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:11,276 INFO L93 Difference]: Finished difference Result 1427 states and 1956 transitions. [2023-11-29 06:02:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:02:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 110 [2023-11-29 06:02:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:11,286 INFO L225 Difference]: With dead ends: 1427 [2023-11-29 06:02:11,287 INFO L226 Difference]: Without dead ends: 1424 [2023-11-29 06:02:11,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:02:11,288 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 94 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:11,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 414 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:02:11,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2023-11-29 06:02:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1395. [2023-11-29 06:02:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1167 states have (on average 1.3213367609254498) internal successors, (1542), 1188 states have internal predecessors, (1542), 198 states have call successors, (198), 8 states have call predecessors, (198), 8 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:02:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1938 transitions. [2023-11-29 06:02:11,430 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1938 transitions. Word has length 110 [2023-11-29 06:02:11,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:11,430 INFO L495 AbstractCegarLoop]: Abstraction has 1395 states and 1938 transitions. [2023-11-29 06:02:11,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:02:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1938 transitions. [2023-11-29 06:02:11,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:02:11,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:11,431 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:11,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 06:02:11,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 06:02:11,632 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:11,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:11,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1831919593, now seen corresponding path program 1 times [2023-11-29 06:02:11,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:11,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162507989] [2023-11-29 06:02:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:11,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:11,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:11,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396218391] [2023-11-29 06:02:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:11,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:11,643 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:11,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 06:02:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:11,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:02:11,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:02:11,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:11,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:11,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162507989] [2023-11-29 06:02:11,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:11,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396218391] [2023-11-29 06:02:11,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396218391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:11,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:11,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:02:11,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490987847] [2023-11-29 06:02:11,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:11,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:02:11,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:11,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:02:11,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:02:11,882 INFO L87 Difference]: Start difference. First operand 1395 states and 1938 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:02:12,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:12,430 INFO L93 Difference]: Finished difference Result 1471 states and 2005 transitions. [2023-11-29 06:02:12,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:02:12,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 111 [2023-11-29 06:02:12,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:12,438 INFO L225 Difference]: With dead ends: 1471 [2023-11-29 06:02:12,438 INFO L226 Difference]: Without dead ends: 1466 [2023-11-29 06:02:12,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 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 06:02:12,440 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 73 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:12,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 466 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:02:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2023-11-29 06:02:12,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 825. [2023-11-29 06:02:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 685 states have (on average 1.251094890510949) internal successors, (857), 702 states have internal predecessors, (857), 114 states have call successors, (114), 8 states have call predecessors, (114), 8 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-29 06:02:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1085 transitions. [2023-11-29 06:02:12,549 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1085 transitions. Word has length 111 [2023-11-29 06:02:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:12,550 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1085 transitions. [2023-11-29 06:02:12,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:02:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1085 transitions. [2023-11-29 06:02:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:02:12,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:12,551 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] [2023-11-29 06:02:12,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 06:02:12,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 06:02:12,752 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:12,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1111770159, now seen corresponding path program 2 times [2023-11-29 06:02:12,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:12,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080685476] [2023-11-29 06:02:12,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:12,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:12,760 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048114496] [2023-11-29 06:02:12,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:02:12,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:12,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:12,761 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:12,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 06:02:12,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:02:12,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:02:12,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:02:12,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 18 proven. 46 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-29 06:02:13,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:13,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:13,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080685476] [2023-11-29 06:02:13,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:13,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048114496] [2023-11-29 06:02:13,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048114496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:13,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:13,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:02:13,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555272090] [2023-11-29 06:02:13,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:13,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:13,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:02:13,365 INFO L87 Difference]: Start difference. First operand 825 states and 1085 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:02:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:14,822 INFO L93 Difference]: Finished difference Result 1071 states and 1374 transitions. [2023-11-29 06:02:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:02:14,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 112 [2023-11-29 06:02:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:14,829 INFO L225 Difference]: With dead ends: 1071 [2023-11-29 06:02:14,830 INFO L226 Difference]: Without dead ends: 1067 [2023-11-29 06:02:14,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:02:14,831 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 288 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:14,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 427 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:02:14,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-11-29 06:02:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 825. [2023-11-29 06:02:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 685 states have (on average 1.2277372262773723) internal successors, (841), 702 states have internal predecessors, (841), 114 states have call successors, (114), 8 states have call predecessors, (114), 8 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-29 06:02:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1069 transitions. [2023-11-29 06:02:14,924 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1069 transitions. Word has length 112 [2023-11-29 06:02:14,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:14,925 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1069 transitions. [2023-11-29 06:02:14,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:02:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1069 transitions. [2023-11-29 06:02:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:02:14,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:14,926 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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 06:02:14,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 06:02:15,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 06:02:15,127 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:15,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:15,127 INFO L85 PathProgramCache]: Analyzing trace with hash -954932469, now seen corresponding path program 1 times [2023-11-29 06:02:15,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:15,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375656849] [2023-11-29 06:02:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:15,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:15,142 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:15,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098621533] [2023-11-29 06:02:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:15,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:15,144 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:15,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 06:02:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:15,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:02:15,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:02:15,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:16,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:16,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375656849] [2023-11-29 06:02:16,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:16,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098621533] [2023-11-29 06:02:16,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098621533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:16,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:16,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:02:16,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737356061] [2023-11-29 06:02:16,138 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:16,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:02:16,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:16,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:02:16,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:02:16,139 INFO L87 Difference]: Start difference. First operand 825 states and 1069 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:02:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:17,238 INFO L93 Difference]: Finished difference Result 854 states and 1083 transitions. [2023-11-29 06:02:17,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:02:17,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 112 [2023-11-29 06:02:17,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:17,241 INFO L225 Difference]: With dead ends: 854 [2023-11-29 06:02:17,242 INFO L226 Difference]: Without dead ends: 847 [2023-11-29 06:02:17,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:02:17,243 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 215 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:17,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 406 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:02:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-11-29 06:02:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 729. [2023-11-29 06:02:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 604 states have (on average 1.2218543046357615) internal successors, (738), 622 states have internal predecessors, (738), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:02:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 936 transitions. [2023-11-29 06:02:17,322 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 936 transitions. Word has length 112 [2023-11-29 06:02:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:17,323 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 936 transitions. [2023-11-29 06:02:17,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:02:17,323 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 936 transitions. [2023-11-29 06:02:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 06:02:17,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:17,323 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:17,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:17,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 06:02:17,524 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:17,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1484264000, now seen corresponding path program 1 times [2023-11-29 06:02:17,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:17,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920578190] [2023-11-29 06:02:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:17,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:17,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894090906] [2023-11-29 06:02:17,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:17,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:17,533 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:17,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 06:02:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:17,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:02:17,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 06:02:17,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:17,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:17,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920578190] [2023-11-29 06:02:17,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:17,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894090906] [2023-11-29 06:02:17,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894090906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:17,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:17,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:02:17,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556893721] [2023-11-29 06:02:17,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:17,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:02:17,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:17,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:02:17,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:02:17,676 INFO L87 Difference]: Start difference. First operand 729 states and 936 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:02:18,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:18,083 INFO L93 Difference]: Finished difference Result 1262 states and 1629 transitions. [2023-11-29 06:02:18,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:02:18,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 115 [2023-11-29 06:02:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:18,088 INFO L225 Difference]: With dead ends: 1262 [2023-11-29 06:02:18,088 INFO L226 Difference]: Without dead ends: 792 [2023-11-29 06:02:18,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 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 06:02:18,090 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 80 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:18,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 164 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:02:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-11-29 06:02:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 713. [2023-11-29 06:02:18,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 593 states have (on average 1.2377740303541316) internal successors, (734), 610 states have internal predecessors, (734), 96 states have call successors, (96), 6 states have call predecessors, (96), 6 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 06:02:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 926 transitions. [2023-11-29 06:02:18,171 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 926 transitions. Word has length 115 [2023-11-29 06:02:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:18,172 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 926 transitions. [2023-11-29 06:02:18,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:02:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 926 transitions. [2023-11-29 06:02:18,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 06:02:18,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:18,173 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:18,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:18,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 06:02:18,374 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:18,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:18,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1339089997, now seen corresponding path program 1 times [2023-11-29 06:02:18,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:18,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703001462] [2023-11-29 06:02:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:18,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:18,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:18,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174854854] [2023-11-29 06:02:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:18,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:18,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:18,387 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:18,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:02:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:18,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:02:18,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:02:18,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 06:02:18,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:18,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703001462] [2023-11-29 06:02:18,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:18,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174854854] [2023-11-29 06:02:18,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174854854] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:02:18,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:02:18,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 06:02:18,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425419128] [2023-11-29 06:02:18,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:18,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:02:18,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:18,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:02:18,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:02:18,908 INFO L87 Difference]: Start difference. First operand 713 states and 926 transitions. Second operand has 22 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 22 states have internal predecessors, (167), 8 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 06:02:19,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:19,483 INFO L93 Difference]: Finished difference Result 937 states and 1171 transitions. [2023-11-29 06:02:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 06:02:19,484 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 22 states have internal predecessors, (167), 8 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 141 [2023-11-29 06:02:19,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:19,489 INFO L225 Difference]: With dead ends: 937 [2023-11-29 06:02:19,489 INFO L226 Difference]: Without dead ends: 928 [2023-11-29 06:02:19,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=430, Invalid=1376, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 06:02:19,490 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 219 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:19,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 848 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:02:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2023-11-29 06:02:19,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 852. [2023-11-29 06:02:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 713 states have (on average 1.2258064516129032) internal successors, (874), 732 states have internal predecessors, (874), 110 states have call successors, (110), 11 states have call predecessors, (110), 11 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-29 06:02:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1094 transitions. [2023-11-29 06:02:19,595 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1094 transitions. Word has length 141 [2023-11-29 06:02:19,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:19,595 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1094 transitions. [2023-11-29 06:02:19,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 22 states have internal predecessors, (167), 8 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 06:02:19,595 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1094 transitions. [2023-11-29 06:02:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 06:02:19,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:19,597 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] [2023-11-29 06:02:19,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:19,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 06:02:19,798 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:19,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:19,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1818834514, now seen corresponding path program 2 times [2023-11-29 06:02:19,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:19,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275684425] [2023-11-29 06:02:19,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:19,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:19,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:19,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114709595] [2023-11-29 06:02:19,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:02:19,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:19,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:19,811 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:19,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 06:02:19,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:02:19,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:02:19,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:02:19,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:20,501 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:02:20,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:20,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:20,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275684425] [2023-11-29 06:02:20,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:20,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114709595] [2023-11-29 06:02:20,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114709595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:20,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:20,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:02:20,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37836101] [2023-11-29 06:02:20,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:20,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:20,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:20,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:20,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:02:20,503 INFO L87 Difference]: Start difference. First operand 852 states and 1094 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:02:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:21,368 INFO L93 Difference]: Finished difference Result 1178 states and 1500 transitions. [2023-11-29 06:02:21,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:02:21,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 150 [2023-11-29 06:02:21,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:21,374 INFO L225 Difference]: With dead ends: 1178 [2023-11-29 06:02:21,374 INFO L226 Difference]: Without dead ends: 1176 [2023-11-29 06:02:21,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:02:21,375 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 241 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:21,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 508 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:02:21,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-11-29 06:02:21,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 671. [2023-11-29 06:02:21,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 556 states have (on average 1.1978417266187051) internal successors, (666), 573 states have internal predecessors, (666), 88 states have call successors, (88), 11 states have call predecessors, (88), 11 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 06:02:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 842 transitions. [2023-11-29 06:02:21,460 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 842 transitions. Word has length 150 [2023-11-29 06:02:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:21,460 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 842 transitions. [2023-11-29 06:02:21,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:02:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 842 transitions. [2023-11-29 06:02:21,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 06:02:21,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:21,461 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:21,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 06:02:21,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 06:02:21,662 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:21,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:21,662 INFO L85 PathProgramCache]: Analyzing trace with hash -549295024, now seen corresponding path program 2 times [2023-11-29 06:02:21,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:21,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500493522] [2023-11-29 06:02:21,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:21,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:21,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:21,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209874978] [2023-11-29 06:02:21,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:02:21,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:21,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:21,672 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:21,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 06:02:21,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:02:21,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:02:21,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:02:21,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:02:22,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:22,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:22,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500493522] [2023-11-29 06:02:22,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:22,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209874978] [2023-11-29 06:02:22,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209874978] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:22,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:22,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:02:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229908193] [2023-11-29 06:02:22,636 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:22,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:02:22,638 INFO L87 Difference]: Start difference. First operand 671 states and 842 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:02:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:23,661 INFO L93 Difference]: Finished difference Result 746 states and 921 transitions. [2023-11-29 06:02:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:02:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 151 [2023-11-29 06:02:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:23,666 INFO L225 Difference]: With dead ends: 746 [2023-11-29 06:02:23,666 INFO L226 Difference]: Without dead ends: 743 [2023-11-29 06:02:23,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:02:23,668 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 168 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:23,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 306 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:02:23,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-29 06:02:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 717. [2023-11-29 06:02:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 595 states have (on average 1.2) internal successors, (714), 611 states have internal predecessors, (714), 95 states have call successors, (95), 11 states have call predecessors, (95), 11 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-29 06:02:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 904 transitions. [2023-11-29 06:02:23,768 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 904 transitions. Word has length 151 [2023-11-29 06:02:23,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:23,768 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 904 transitions. [2023-11-29 06:02:23,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:02:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 904 transitions. [2023-11-29 06:02:23,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:02:23,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:23,770 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:23,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:23,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 06:02:23,970 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:23,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:23,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1819803274, now seen corresponding path program 3 times [2023-11-29 06:02:23,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:23,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069099601] [2023-11-29 06:02:23,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:23,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:23,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:23,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6276693] [2023-11-29 06:02:23,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:02:23,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:23,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:23,980 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:23,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 06:02:24,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:02:24,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:02:24,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:02:24,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 45 proven. 26 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-29 06:02:24,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:25,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:25,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069099601] [2023-11-29 06:02:25,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:25,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6276693] [2023-11-29 06:02:25,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6276693] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:25,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:25,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:02:25,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264297726] [2023-11-29 06:02:25,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:25,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:02:25,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:25,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:02:25,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:02:25,219 INFO L87 Difference]: Start difference. First operand 717 states and 904 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 06:02:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:28,465 INFO L93 Difference]: Finished difference Result 882 states and 1088 transitions. [2023-11-29 06:02:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:02:28,465 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 153 [2023-11-29 06:02:28,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:28,469 INFO L225 Difference]: With dead ends: 882 [2023-11-29 06:02:28,469 INFO L226 Difference]: Without dead ends: 878 [2023-11-29 06:02:28,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:02:28,470 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 355 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:28,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 476 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:02:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-11-29 06:02:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 708. [2023-11-29 06:02:28,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 586 states have (on average 1.18259385665529) internal successors, (693), 602 states have internal predecessors, (693), 95 states have call successors, (95), 11 states have call predecessors, (95), 11 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-29 06:02:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 883 transitions. [2023-11-29 06:02:28,551 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 883 transitions. Word has length 153 [2023-11-29 06:02:28,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:28,551 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 883 transitions. [2023-11-29 06:02:28,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 06:02:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 883 transitions. [2023-11-29 06:02:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:02:28,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:28,553 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:28,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 06:02:28,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:28,753 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:28,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash 408461394, now seen corresponding path program 2 times [2023-11-29 06:02:28,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:28,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633277745] [2023-11-29 06:02:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:28,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:28,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954316021] [2023-11-29 06:02:28,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:02:28,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:28,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:28,763 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:28,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 06:02:28,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:02:28,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:02:28,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 06:02:28,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:02:29,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:53,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:53,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633277745] [2023-11-29 06:02:53,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:53,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954316021] [2023-11-29 06:02:53,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954316021] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:53,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:53,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:02:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912537917] [2023-11-29 06:02:53,821 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:53,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:02:53,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:02:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=268, Unknown=6, NotChecked=0, Total=342 [2023-11-29 06:02:53,822 INFO L87 Difference]: Start difference. First operand 708 states and 883 transitions. Second operand has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:02:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:54,739 INFO L93 Difference]: Finished difference Result 740 states and 904 transitions. [2023-11-29 06:02:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:02:54,739 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 153 [2023-11-29 06:02:54,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:54,742 INFO L225 Difference]: With dead ends: 740 [2023-11-29 06:02:54,742 INFO L226 Difference]: Without dead ends: 733 [2023-11-29 06:02:54,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=137, Invalid=559, Unknown=6, NotChecked=0, Total=702 [2023-11-29 06:02:54,743 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 219 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:54,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 582 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:02:54,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-29 06:02:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 620. [2023-11-29 06:02:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 513 states have (on average 1.1676413255360625) internal successors, (599), 529 states have internal predecessors, (599), 80 states have call successors, (80), 11 states have call predecessors, (80), 11 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-29 06:02:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 759 transitions. [2023-11-29 06:02:54,825 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 759 transitions. Word has length 153 [2023-11-29 06:02:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:54,825 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 759 transitions. [2023-11-29 06:02:54,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:02:54,825 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 759 transitions. [2023-11-29 06:02:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 06:02:54,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:54,827 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, 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] [2023-11-29 06:02:54,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 06:02:55,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:55,027 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:55,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:55,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2123409639, now seen corresponding path program 1 times [2023-11-29 06:02:55,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:55,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336807703] [2023-11-29 06:02:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:55,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:55,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:55,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550367466] [2023-11-29 06:02:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:55,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:55,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:55,037 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:55,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 06:02:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:55,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:02:55,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 06:02:55,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:02:55,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:55,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336807703] [2023-11-29 06:02:55,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:55,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550367466] [2023-11-29 06:02:55,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550367466] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:02:55,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:02:55,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2023-11-29 06:02:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312807685] [2023-11-29 06:02:55,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:55,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:02:55,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:55,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:02:55,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:02:55,532 INFO L87 Difference]: Start difference. First operand 620 states and 759 transitions. Second operand has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:02:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:56,071 INFO L93 Difference]: Finished difference Result 1043 states and 1271 transitions. [2023-11-29 06:02:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 06:02:56,072 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 156 [2023-11-29 06:02:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:56,075 INFO L225 Difference]: With dead ends: 1043 [2023-11-29 06:02:56,075 INFO L226 Difference]: Without dead ends: 845 [2023-11-29 06:02:56,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=589, Invalid=1961, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 06:02:56,077 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 225 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:56,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 913 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:02:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-29 06:02:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 787. [2023-11-29 06:02:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 653 states have (on average 1.1485451761102603) internal successors, (750), 673 states have internal predecessors, (750), 102 states have call successors, (102), 16 states have call predecessors, (102), 16 states have return successors, (102), 97 states have call predecessors, (102), 102 states have call successors, (102) [2023-11-29 06:02:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 954 transitions. [2023-11-29 06:02:56,181 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 954 transitions. Word has length 156 [2023-11-29 06:02:56,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:56,181 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 954 transitions. [2023-11-29 06:02:56,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:02:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 954 transitions. [2023-11-29 06:02:56,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 06:02:56,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:56,183 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, 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] [2023-11-29 06:02:56,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 06:02:56,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:56,384 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:02:56,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:56,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1318603289, now seen corresponding path program 3 times [2023-11-29 06:02:56,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:02:56,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943449071] [2023-11-29 06:02:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:56,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:02:56,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:02:56,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157848083] [2023-11-29 06:02:56,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:02:56,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:02:56,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:56,393 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:02:56,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 06:02:57,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:02:57,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:02:57,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:02:57,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 76 proven. 70 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 06:02:58,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:59,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:02:59,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943449071] [2023-11-29 06:02:59,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:02:59,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157848083] [2023-11-29 06:02:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157848083] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:59,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:59,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:02:59,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14919668] [2023-11-29 06:02:59,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:02:59,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:02:59,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:02:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:02:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:02:59,779 INFO L87 Difference]: Start difference. First operand 787 states and 954 transitions. Second operand has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:03:05,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:05,745 INFO L93 Difference]: Finished difference Result 1203 states and 1483 transitions. [2023-11-29 06:03:05,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 06:03:05,745 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 163 [2023-11-29 06:03:05,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:05,750 INFO L225 Difference]: With dead ends: 1203 [2023-11-29 06:03:05,750 INFO L226 Difference]: Without dead ends: 1200 [2023-11-29 06:03:05,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:03:05,751 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 372 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:05,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 269 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 06:03:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2023-11-29 06:03:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1128. [2023-11-29 06:03:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 944 states have (on average 1.1747881355932204) internal successors, (1109), 965 states have internal predecessors, (1109), 152 states have call successors, (152), 16 states have call predecessors, (152), 16 states have return successors, (152), 146 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 06:03:05,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1413 transitions. [2023-11-29 06:03:05,994 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1413 transitions. Word has length 163 [2023-11-29 06:03:05,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:05,995 INFO L495 AbstractCegarLoop]: Abstraction has 1128 states and 1413 transitions. [2023-11-29 06:03:05,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:03:05,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1413 transitions. [2023-11-29 06:03:05,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 06:03:05,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:05,996 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, 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] [2023-11-29 06:03:06,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 06:03:06,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 06:03:06,197 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:06,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:06,197 INFO L85 PathProgramCache]: Analyzing trace with hash 162410459, now seen corresponding path program 3 times [2023-11-29 06:03:06,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:06,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204183531] [2023-11-29 06:03:06,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:06,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:06,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:06,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179228353] [2023-11-29 06:03:06,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:03:06,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:06,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:06,209 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:06,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 06:03:06,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:03:06,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:06,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 06:03:06,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 66 proven. 79 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-11-29 06:03:06,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:06,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:06,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204183531] [2023-11-29 06:03:06,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:06,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179228353] [2023-11-29 06:03:06,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179228353] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:06,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:06,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:03:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987059514] [2023-11-29 06:03:06,839 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:06,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:03:06,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:03:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:03:06,840 INFO L87 Difference]: Start difference. First operand 1128 states and 1413 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:03:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:08,562 INFO L93 Difference]: Finished difference Result 1170 states and 1453 transitions. [2023-11-29 06:03:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:03:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) Word has length 165 [2023-11-29 06:03:08,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:08,566 INFO L225 Difference]: With dead ends: 1170 [2023-11-29 06:03:08,567 INFO L226 Difference]: Without dead ends: 1110 [2023-11-29 06:03:08,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:03:08,569 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 262 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:08,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 206 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:03:08,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2023-11-29 06:03:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1033. [2023-11-29 06:03:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 865 states have (on average 1.138728323699422) internal successors, (985), 883 states have internal predecessors, (985), 139 states have call successors, (139), 15 states have call predecessors, (139), 15 states have return successors, (139), 134 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 06:03:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1263 transitions. [2023-11-29 06:03:08,840 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1263 transitions. Word has length 165 [2023-11-29 06:03:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:08,840 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1263 transitions. [2023-11-29 06:03:08,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:03:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1263 transitions. [2023-11-29 06:03:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 06:03:08,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:08,843 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 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, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:08,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:09,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:09,044 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:09,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:09,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2124397676, now seen corresponding path program 2 times [2023-11-29 06:03:09,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:09,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439134475] [2023-11-29 06:03:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:09,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:09,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255271104] [2023-11-29 06:03:09,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:09,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:09,059 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:09,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 06:03:09,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:09,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:09,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:09,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:03:09,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:03:09,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:09,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439134475] [2023-11-29 06:03:09,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:09,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255271104] [2023-11-29 06:03:09,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255271104] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:09,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:09,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:03:09,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715623787] [2023-11-29 06:03:09,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:09,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:03:09,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:09,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:03:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:03:09,738 INFO L87 Difference]: Start difference. First operand 1033 states and 1263 transitions. Second operand has 14 states, 13 states have (on average 16.0) internal successors, (208), 14 states have internal predecessors, (208), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:03:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:10,882 INFO L93 Difference]: Finished difference Result 2187 states and 2726 transitions. [2023-11-29 06:03:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:03:10,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.0) internal successors, (208), 14 states have internal predecessors, (208), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 214 [2023-11-29 06:03:10,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:10,888 INFO L225 Difference]: With dead ends: 2187 [2023-11-29 06:03:10,888 INFO L226 Difference]: Without dead ends: 2186 [2023-11-29 06:03:10,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 415 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 06:03:10,889 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 630 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:10,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 671 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:03:10,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2023-11-29 06:03:11,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 1573. [2023-11-29 06:03:11,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1318 states have (on average 1.1980273141122912) internal successors, (1579), 1335 states have internal predecessors, (1579), 226 states have call successors, (226), 15 states have call predecessors, (226), 15 states have return successors, (226), 222 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 06:03:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2031 transitions. [2023-11-29 06:03:11,216 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2031 transitions. Word has length 214 [2023-11-29 06:03:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:11,216 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2031 transitions. [2023-11-29 06:03:11,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.0) internal successors, (208), 14 states have internal predecessors, (208), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:03:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2031 transitions. [2023-11-29 06:03:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 06:03:11,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:11,220 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 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, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:11,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 06:03:11,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:11,420 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:11,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:11,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1431818411, now seen corresponding path program 2 times [2023-11-29 06:03:11,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:11,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090419050] [2023-11-29 06:03:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:11,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:11,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:11,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718884236] [2023-11-29 06:03:11,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:11,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:11,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:11,439 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:11,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 06:03:11,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:11,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:11,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:11,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:03:11,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:03:11,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:11,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090419050] [2023-11-29 06:03:11,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:11,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718884236] [2023-11-29 06:03:11,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718884236] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:11,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:11,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:03:11,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212824371] [2023-11-29 06:03:11,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:11,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:03:11,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:11,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:03:11,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:03:11,939 INFO L87 Difference]: Start difference. First operand 1573 states and 2031 transitions. Second operand has 14 states, 13 states have (on average 16.153846153846153) internal successors, (210), 14 states have internal predecessors, (210), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:03:12,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:12,963 INFO L93 Difference]: Finished difference Result 2191 states and 2710 transitions. [2023-11-29 06:03:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:03:12,964 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.153846153846153) internal successors, (210), 14 states have internal predecessors, (210), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 215 [2023-11-29 06:03:12,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:12,967 INFO L225 Difference]: With dead ends: 2191 [2023-11-29 06:03:12,967 INFO L226 Difference]: Without dead ends: 2190 [2023-11-29 06:03:12,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 417 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 06:03:12,968 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 575 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:12,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 700 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:03:12,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2023-11-29 06:03:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1577. [2023-11-29 06:03:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1322 states have (on average 1.1822995461422088) internal successors, (1563), 1339 states have internal predecessors, (1563), 226 states have call successors, (226), 15 states have call predecessors, (226), 15 states have return successors, (226), 222 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 06:03:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2015 transitions. [2023-11-29 06:03:13,353 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2015 transitions. Word has length 215 [2023-11-29 06:03:13,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:13,354 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 2015 transitions. [2023-11-29 06:03:13,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.153846153846153) internal successors, (210), 14 states have internal predecessors, (210), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:03:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2015 transitions. [2023-11-29 06:03:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-29 06:03:13,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:13,356 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:03:13,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 06:03:13,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:13,557 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:13,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1457868590, now seen corresponding path program 1 times [2023-11-29 06:03:13,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:13,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185689049] [2023-11-29 06:03:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:13,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:13,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:13,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078517672] [2023-11-29 06:03:13,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:13,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:13,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:13,570 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:13,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 06:03:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:13,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:03:13,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 06:03:14,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 06:03:14,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185689049] [2023-11-29 06:03:14,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078517672] [2023-11-29 06:03:14,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078517672] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:14,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:14,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 06:03:14,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619985632] [2023-11-29 06:03:14,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:14,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:03:14,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:14,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:03:14,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:03:14,402 INFO L87 Difference]: Start difference. First operand 1577 states and 2015 transitions. Second operand has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 16 states have internal predecessors, (245), 14 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) [2023-11-29 06:03:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:17,740 INFO L93 Difference]: Finished difference Result 3678 states and 4771 transitions. [2023-11-29 06:03:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 06:03:17,741 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 16 states have internal predecessors, (245), 14 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) Word has length 232 [2023-11-29 06:03:17,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:17,746 INFO L225 Difference]: With dead ends: 3678 [2023-11-29 06:03:17,746 INFO L226 Difference]: Without dead ends: 3669 [2023-11-29 06:03:17,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=380, Invalid=612, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:03:17,748 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 989 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:17,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 625 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:03:17,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2023-11-29 06:03:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 2140. [2023-11-29 06:03:18,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1803 states have (on average 1.1835829173599557) internal successors, (2134), 1820 states have internal predecessors, (2134), 308 states have call successors, (308), 15 states have call predecessors, (308), 15 states have return successors, (308), 304 states have call predecessors, (308), 308 states have call successors, (308) [2023-11-29 06:03:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2750 transitions. [2023-11-29 06:03:18,323 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2750 transitions. Word has length 232 [2023-11-29 06:03:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:18,323 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2750 transitions. [2023-11-29 06:03:18,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 16 states have internal predecessors, (245), 14 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) [2023-11-29 06:03:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2750 transitions. [2023-11-29 06:03:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 06:03:18,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:18,326 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:18,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 06:03:18,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:18,527 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:18,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1935903257, now seen corresponding path program 1 times [2023-11-29 06:03:18,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:18,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217457139] [2023-11-29 06:03:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:18,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:18,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260834524] [2023-11-29 06:03:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:18,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:18,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:18,541 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:18,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 06:03:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:18,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:03:18,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 1138 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:03:19,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:19,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 06:03:19,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:19,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217457139] [2023-11-29 06:03:19,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:19,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260834524] [2023-11-29 06:03:19,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260834524] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:19,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:19,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2023-11-29 06:03:19,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600164889] [2023-11-29 06:03:19,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:19,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 06:03:19,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:19,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 06:03:19,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:03:19,504 INFO L87 Difference]: Start difference. First operand 2140 states and 2750 transitions. Second operand has 34 states, 33 states have (on average 8.545454545454545) internal successors, (282), 34 states have internal predecessors, (282), 14 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 14 states have call predecessors, (46), 14 states have call successors, (46) [2023-11-29 06:03:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:21,055 INFO L93 Difference]: Finished difference Result 3538 states and 4519 transitions. [2023-11-29 06:03:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-29 06:03:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 8.545454545454545) internal successors, (282), 34 states have internal predecessors, (282), 14 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 14 states have call predecessors, (46), 14 states have call successors, (46) Word has length 244 [2023-11-29 06:03:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:21,061 INFO L225 Difference]: With dead ends: 3538 [2023-11-29 06:03:21,061 INFO L226 Difference]: Without dead ends: 3038 [2023-11-29 06:03:21,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1282, Invalid=4120, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 06:03:21,065 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 504 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:21,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 946 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:03:21,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3038 states. [2023-11-29 06:03:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3038 to 2880. [2023-11-29 06:03:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2433 states have (on average 1.1627620221948212) internal successors, (2829), 2452 states have internal predecessors, (2829), 402 states have call successors, (402), 31 states have call predecessors, (402), 31 states have return successors, (402), 396 states have call predecessors, (402), 402 states have call successors, (402) [2023-11-29 06:03:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3633 transitions. [2023-11-29 06:03:21,707 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3633 transitions. Word has length 244 [2023-11-29 06:03:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:21,708 INFO L495 AbstractCegarLoop]: Abstraction has 2880 states and 3633 transitions. [2023-11-29 06:03:21,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 8.545454545454545) internal successors, (282), 34 states have internal predecessors, (282), 14 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 14 states have call predecessors, (46), 14 states have call successors, (46) [2023-11-29 06:03:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3633 transitions. [2023-11-29 06:03:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-29 06:03:21,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:21,710 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:21,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 06:03:21,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:21,911 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:21,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash -829564705, now seen corresponding path program 1 times [2023-11-29 06:03:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:21,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945817695] [2023-11-29 06:03:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:21,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:21,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:21,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395760016] [2023-11-29 06:03:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:21,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:21,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:21,924 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 06:03:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:22,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:03:22,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 658 proven. 48 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-29 06:03:22,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 154 proven. 48 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2023-11-29 06:03:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945817695] [2023-11-29 06:03:22,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395760016] [2023-11-29 06:03:22,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395760016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:22,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:22,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 06:03:22,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786648412] [2023-11-29 06:03:22,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:22,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:03:22,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:22,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:03:22,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:22,265 INFO L87 Difference]: Start difference. First operand 2880 states and 3633 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-29 06:03:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:23,515 INFO L93 Difference]: Finished difference Result 4469 states and 5705 transitions. [2023-11-29 06:03:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:03:23,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 247 [2023-11-29 06:03:23,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:23,521 INFO L225 Difference]: With dead ends: 4469 [2023-11-29 06:03:23,521 INFO L226 Difference]: Without dead ends: 2959 [2023-11-29 06:03:23,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 484 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 06:03:23,525 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 140 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:23,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 454 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:03:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2023-11-29 06:03:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2744. [2023-11-29 06:03:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2322 states have (on average 1.1752799310938846) internal successors, (2729), 2339 states have internal predecessors, (2729), 384 states have call successors, (384), 24 states have call predecessors, (384), 24 states have return successors, (384), 380 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 06:03:24,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3497 transitions. [2023-11-29 06:03:24,230 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3497 transitions. Word has length 247 [2023-11-29 06:03:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:24,231 INFO L495 AbstractCegarLoop]: Abstraction has 2744 states and 3497 transitions. [2023-11-29 06:03:24,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-29 06:03:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3497 transitions. [2023-11-29 06:03:24,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-11-29 06:03:24,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:24,234 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:24,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 06:03:24,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:24,435 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:24,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:24,435 INFO L85 PathProgramCache]: Analyzing trace with hash 132039149, now seen corresponding path program 1 times [2023-11-29 06:03:24,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:24,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093990703] [2023-11-29 06:03:24,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:24,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:24,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:24,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618061477] [2023-11-29 06:03:24,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:24,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:24,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:24,452 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:24,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 06:03:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:24,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:03:24,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 1551 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:03:24,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 399 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-29 06:03:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:25,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093990703] [2023-11-29 06:03:25,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:25,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618061477] [2023-11-29 06:03:25,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618061477] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:25,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:25,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-11-29 06:03:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060885703] [2023-11-29 06:03:25,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:25,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 06:03:25,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 06:03:25,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=845, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:03:25,470 INFO L87 Difference]: Start difference. First operand 2744 states and 3497 transitions. Second operand has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 14 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2023-11-29 06:03:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:27,076 INFO L93 Difference]: Finished difference Result 3500 states and 4420 transitions. [2023-11-29 06:03:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-29 06:03:27,077 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 14 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) Word has length 276 [2023-11-29 06:03:27,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:27,084 INFO L225 Difference]: With dead ends: 3500 [2023-11-29 06:03:27,084 INFO L226 Difference]: Without dead ends: 2822 [2023-11-29 06:03:27,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1287, Invalid=3543, Unknown=0, NotChecked=0, Total=4830 [2023-11-29 06:03:27,088 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 370 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:27,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1028 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:03:27,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2023-11-29 06:03:27,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2729. [2023-11-29 06:03:27,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2729 states, 2297 states have (on average 1.1562908141053547) internal successors, (2656), 2315 states have internal predecessors, (2656), 373 states have call successors, (373), 45 states have call predecessors, (373), 45 states have return successors, (373), 368 states have call predecessors, (373), 373 states have call successors, (373) [2023-11-29 06:03:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2729 states to 2729 states and 3402 transitions. [2023-11-29 06:03:27,810 INFO L78 Accepts]: Start accepts. Automaton has 2729 states and 3402 transitions. Word has length 276 [2023-11-29 06:03:27,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:27,811 INFO L495 AbstractCegarLoop]: Abstraction has 2729 states and 3402 transitions. [2023-11-29 06:03:27,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 14 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2023-11-29 06:03:27,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2729 states and 3402 transitions. [2023-11-29 06:03:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-11-29 06:03:27,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:27,814 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 06:03:27,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:28,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2023-11-29 06:03:28,015 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:28,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash -719711822, now seen corresponding path program 2 times [2023-11-29 06:03:28,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:28,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091739739] [2023-11-29 06:03:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:28,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:28,028 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:28,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702644263] [2023-11-29 06:03:28,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:28,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:28,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:28,029 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:28,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 06:03:28,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:28,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:28,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:03:28,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:28,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 06:03:28,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:28,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-29 06:03:28,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:28,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091739739] [2023-11-29 06:03:28,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:28,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702644263] [2023-11-29 06:03:28,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702644263] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:28,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:28,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 38 [2023-11-29 06:03:28,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789785763] [2023-11-29 06:03:28,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:28,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 06:03:28,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:28,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 06:03:28,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 06:03:28,967 INFO L87 Difference]: Start difference. First operand 2729 states and 3402 transitions. Second operand has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 16 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 16 states have call predecessors, (52), 16 states have call successors, (52) [2023-11-29 06:03:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:30,717 INFO L93 Difference]: Finished difference Result 3400 states and 4240 transitions. [2023-11-29 06:03:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 06:03:30,718 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 16 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 16 states have call predecessors, (52), 16 states have call successors, (52) Word has length 279 [2023-11-29 06:03:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:30,724 INFO L225 Difference]: With dead ends: 3400 [2023-11-29 06:03:30,724 INFO L226 Difference]: Without dead ends: 2926 [2023-11-29 06:03:30,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1450, Invalid=4870, Unknown=0, NotChecked=0, Total=6320 [2023-11-29 06:03:30,727 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 398 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:30,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 925 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:03:30,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2023-11-29 06:03:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2627. [2023-11-29 06:03:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2212 states have (on average 1.1541591320072333) internal successors, (2553), 2230 states have internal predecessors, (2553), 361 states have call successors, (361), 40 states have call predecessors, (361), 40 states have return successors, (361), 356 states have call predecessors, (361), 361 states have call successors, (361) [2023-11-29 06:03:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3275 transitions. [2023-11-29 06:03:31,294 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3275 transitions. Word has length 279 [2023-11-29 06:03:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:31,294 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 3275 transitions. [2023-11-29 06:03:31,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 16 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 16 states have call predecessors, (52), 16 states have call successors, (52) [2023-11-29 06:03:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3275 transitions. [2023-11-29 06:03:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-29 06:03:31,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:31,297 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:31,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 06:03:31,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 06:03:31,498 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:31,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:31,498 INFO L85 PathProgramCache]: Analyzing trace with hash 286809528, now seen corresponding path program 2 times [2023-11-29 06:03:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:31,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226305964] [2023-11-29 06:03:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:31,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:31,512 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:31,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595134540] [2023-11-29 06:03:31,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:31,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:31,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:31,513 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:31,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 06:03:31,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:31,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:31,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:03:31,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 617 proven. 187 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2023-11-29 06:03:31,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 177 proven. 187 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2023-11-29 06:03:32,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:32,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226305964] [2023-11-29 06:03:32,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:32,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595134540] [2023-11-29 06:03:32,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595134540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:32,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:32,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2023-11-29 06:03:32,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389421066] [2023-11-29 06:03:32,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:32,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:03:32,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:32,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:03:32,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:03:32,041 INFO L87 Difference]: Start difference. First operand 2627 states and 3275 transitions. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 9 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2023-11-29 06:03:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:33,776 INFO L93 Difference]: Finished difference Result 4559 states and 5733 transitions. [2023-11-29 06:03:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:03:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 9 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) Word has length 288 [2023-11-29 06:03:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:33,783 INFO L225 Difference]: With dead ends: 4559 [2023-11-29 06:03:33,783 INFO L226 Difference]: Without dead ends: 3315 [2023-11-29 06:03:33,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 564 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:03:33,786 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 397 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:33,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 791 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:03:33,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2023-11-29 06:03:34,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 2938. [2023-11-29 06:03:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2470 states have (on average 1.151012145748988) internal successors, (2843), 2488 states have internal predecessors, (2843), 414 states have call successors, (414), 40 states have call predecessors, (414), 40 states have return successors, (414), 409 states have call predecessors, (414), 414 states have call successors, (414) [2023-11-29 06:03:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 3671 transitions. [2023-11-29 06:03:34,557 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 3671 transitions. Word has length 288 [2023-11-29 06:03:34,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:34,557 INFO L495 AbstractCegarLoop]: Abstraction has 2938 states and 3671 transitions. [2023-11-29 06:03:34,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 9 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2023-11-29 06:03:34,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 3671 transitions. [2023-11-29 06:03:34,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-29 06:03:34,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:34,560 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1] [2023-11-29 06:03:34,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 06:03:34,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 06:03:34,760 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:34,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1420051493, now seen corresponding path program 4 times [2023-11-29 06:03:34,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:34,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117354574] [2023-11-29 06:03:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:34,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:34,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463183696] [2023-11-29 06:03:34,771 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:03:34,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:34,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:34,772 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:34,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 06:03:34,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:03:34,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:34,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:03:34,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1857 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-29 06:03:35,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:35,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:35,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117354574] [2023-11-29 06:03:35,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:35,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463183696] [2023-11-29 06:03:35,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463183696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:35,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:35,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:03:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615296350] [2023-11-29 06:03:35,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:35,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:03:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:35,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:03:35,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:03:35,881 INFO L87 Difference]: Start difference. First operand 2938 states and 3671 transitions. Second operand has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 14 states have internal predecessors, (161), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2023-11-29 06:03:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:37,117 INFO L93 Difference]: Finished difference Result 3000 states and 3736 transitions. [2023-11-29 06:03:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:03:37,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 14 states have internal predecessors, (161), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) Word has length 298 [2023-11-29 06:03:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:37,124 INFO L225 Difference]: With dead ends: 3000 [2023-11-29 06:03:37,124 INFO L226 Difference]: Without dead ends: 2888 [2023-11-29 06:03:37,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:03:37,126 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 140 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:37,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 422 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:03:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2023-11-29 06:03:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2880. [2023-11-29 06:03:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2421 states have (on average 1.1536555142503098) internal successors, (2793), 2439 states have internal predecessors, (2793), 405 states have call successors, (405), 40 states have call predecessors, (405), 40 states have return successors, (405), 400 states have call predecessors, (405), 405 states have call successors, (405) [2023-11-29 06:03:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3603 transitions. [2023-11-29 06:03:37,762 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3603 transitions. Word has length 298 [2023-11-29 06:03:37,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:37,763 INFO L495 AbstractCegarLoop]: Abstraction has 2880 states and 3603 transitions. [2023-11-29 06:03:37,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 14 states have internal predecessors, (161), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2023-11-29 06:03:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3603 transitions. [2023-11-29 06:03:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-11-29 06:03:37,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:37,766 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:37,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 06:03:37,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 06:03:37,967 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:37,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:37,967 INFO L85 PathProgramCache]: Analyzing trace with hash 637296895, now seen corresponding path program 3 times [2023-11-29 06:03:37,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:37,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455475036] [2023-11-29 06:03:37,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:37,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:37,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:37,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530854110] [2023-11-29 06:03:37,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:03:37,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:37,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:37,981 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:37,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 06:03:38,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:03:38,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:38,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:03:38,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 370 proven. 62 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2023-11-29 06:03:39,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:40,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:40,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455475036] [2023-11-29 06:03:40,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:40,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530854110] [2023-11-29 06:03:40,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530854110] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:40,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:40,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:03:40,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911382064] [2023-11-29 06:03:40,186 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:40,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:03:40,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:40,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:03:40,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:03:40,188 INFO L87 Difference]: Start difference. First operand 2880 states and 3603 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:03:46,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:03:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:49,210 INFO L93 Difference]: Finished difference Result 3428 states and 4325 transitions. [2023-11-29 06:03:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:03:49,210 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 329 [2023-11-29 06:03:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:49,215 INFO L225 Difference]: With dead ends: 3428 [2023-11-29 06:03:49,215 INFO L226 Difference]: Without dead ends: 3424 [2023-11-29 06:03:49,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:03:49,216 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 314 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:49,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 494 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-29 06:03:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2023-11-29 06:03:49,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3183. [2023-11-29 06:03:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 2674 states have (on average 1.1290201944652207) internal successors, (3019), 2692 states have internal predecessors, (3019), 455 states have call successors, (455), 40 states have call predecessors, (455), 40 states have return successors, (455), 450 states have call predecessors, (455), 455 states have call successors, (455) [2023-11-29 06:03:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 3929 transitions. [2023-11-29 06:03:49,845 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 3929 transitions. Word has length 329 [2023-11-29 06:03:49,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:49,845 INFO L495 AbstractCegarLoop]: Abstraction has 3183 states and 3929 transitions. [2023-11-29 06:03:49,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:03:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 3929 transitions. [2023-11-29 06:03:49,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-11-29 06:03:49,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:49,848 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 7, 7, 7, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:03:49,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 06:03:50,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:50,048 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:50,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:50,048 INFO L85 PathProgramCache]: Analyzing trace with hash -322596254, now seen corresponding path program 5 times [2023-11-29 06:03:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825730063] [2023-11-29 06:03:50,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:50,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:50,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882752811] [2023-11-29 06:03:50,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:03:50,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:50,068 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:50,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 06:03:50,194 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-11-29 06:03:50,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:50,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:03:50,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 0 proven. 468 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 06:03:51,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:51,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825730063] [2023-11-29 06:03:51,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882752811] [2023-11-29 06:03:51,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882752811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:51,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:51,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:03:51,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376867947] [2023-11-29 06:03:51,231 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:51,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:03:51,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:03:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:03:51,233 INFO L87 Difference]: Start difference. First operand 3183 states and 3929 transitions. Second operand has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-29 06:03:52,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:52,709 INFO L93 Difference]: Finished difference Result 3286 states and 4047 transitions. [2023-11-29 06:03:52,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:03:52,710 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) Word has length 339 [2023-11-29 06:03:52,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:52,715 INFO L225 Difference]: With dead ends: 3286 [2023-11-29 06:03:52,715 INFO L226 Difference]: Without dead ends: 3224 [2023-11-29 06:03:52,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:03:52,716 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 147 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:52,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 849 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:03:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2023-11-29 06:03:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 3126. [2023-11-29 06:03:53,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 2626 states have (on average 1.1306169078446306) internal successors, (2969), 2643 states have internal predecessors, (2969), 448 states have call successors, (448), 38 states have call predecessors, (448), 38 states have return successors, (448), 444 states have call predecessors, (448), 448 states have call successors, (448) [2023-11-29 06:03:53,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 3865 transitions. [2023-11-29 06:03:53,397 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 3865 transitions. Word has length 339 [2023-11-29 06:03:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:53,397 INFO L495 AbstractCegarLoop]: Abstraction has 3126 states and 3865 transitions. [2023-11-29 06:03:53,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-29 06:03:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 3865 transitions. [2023-11-29 06:03:53,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-11-29 06:03:53,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:53,400 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 8, 8, 8, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:03:53,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 06:03:53,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 06:03:53,601 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:03:53,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash 373522363, now seen corresponding path program 6 times [2023-11-29 06:03:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:53,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877994632] [2023-11-29 06:03:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:53,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:53,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89585666] [2023-11-29 06:03:53,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:03:53,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:53,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:53,616 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 06:03:54,752 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-11-29 06:03:54,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:54,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 06:03:54,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 473 proven. 367 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2023-11-29 06:04:10,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:14,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:14,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877994632] [2023-11-29 06:04:14,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:04:14,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89585666] [2023-11-29 06:04:14,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89585666] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:04:14,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:04:14,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 06:04:14,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199854705] [2023-11-29 06:04:14,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:04:14,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 06:04:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:14,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 06:04:14,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=549, Unknown=3, NotChecked=0, Total=650 [2023-11-29 06:04:14,006 INFO L87 Difference]: Start difference. First operand 3126 states and 3865 transitions. Second operand has 19 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:04:16,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:18,806 WARN L539 Checker$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 06:04:23,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:26,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:31,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:33,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:35,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:41,702 WARN L539 Checker$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 06:04:45,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:50,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:04:54,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:00,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:04,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:07,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:12,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:14,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:20,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:23,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:30,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:38,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:47,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:51,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:56,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:06:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:06,761 INFO L93 Difference]: Finished difference Result 3719 states and 4614 transitions. [2023-11-29 06:06:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 06:06:06,761 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) Word has length 380 [2023-11-29 06:06:06,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:06,767 INFO L225 Difference]: With dead ends: 3719 [2023-11-29 06:06:06,767 INFO L226 Difference]: Without dead ends: 3661 [2023-11-29 06:06:06,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=572, Invalid=2287, Unknown=3, NotChecked=0, Total=2862 [2023-11-29 06:06:06,769 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 413 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 61 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:06,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1129 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1976 Invalid, 26 Unknown, 0 Unchecked, 95.5s Time] [2023-11-29 06:06:06,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2023-11-29 06:06:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 2693. [2023-11-29 06:06:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2260 states have (on average 1.1300884955752213) internal successors, (2554), 2276 states have internal predecessors, (2554), 381 states have call successors, (381), 38 states have call predecessors, (381), 38 states have return successors, (381), 378 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-29 06:06:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3316 transitions. [2023-11-29 06:06:07,558 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3316 transitions. Word has length 380 [2023-11-29 06:06:07,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:07,558 INFO L495 AbstractCegarLoop]: Abstraction has 2693 states and 3316 transitions. [2023-11-29 06:06:07,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:06:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3316 transitions. [2023-11-29 06:06:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2023-11-29 06:06:07,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:07,563 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 06:06:07,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 06:06:07,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 06:06:07,764 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:07,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:07,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2140053012, now seen corresponding path program 2 times [2023-11-29 06:06:07,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:07,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580010975] [2023-11-29 06:06:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:07,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:07,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:07,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887792644] [2023-11-29 06:06:07,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:06:07,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:07,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:07,782 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:07,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 06:06:07,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:06:07,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:07,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:06:07,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:07,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3955 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 3604 trivial. 0 not checked. [2023-11-29 06:06:07,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:06:07,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:07,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580010975] [2023-11-29 06:06:07,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:07,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887792644] [2023-11-29 06:06:07,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887792644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:06:07,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:06:07,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:06:07,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769477349] [2023-11-29 06:06:07,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:06:07,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:06:07,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:06:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:06:07,899 INFO L87 Difference]: Start difference. First operand 2693 states and 3316 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 06:06:08,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:08,675 INFO L93 Difference]: Finished difference Result 2699 states and 3319 transitions. [2023-11-29 06:06:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:06:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 420 [2023-11-29 06:06:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:08,681 INFO L225 Difference]: With dead ends: 2699 [2023-11-29 06:06:08,681 INFO L226 Difference]: Without dead ends: 2698 [2023-11-29 06:06:08,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:06:08,683 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 15 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:08,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 238 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:06:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2023-11-29 06:06:09,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2697. [2023-11-29 06:06:09,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2263 states have (on average 1.1246133451171012) internal successors, (2545), 2279 states have internal predecessors, (2545), 381 states have call successors, (381), 39 states have call predecessors, (381), 39 states have return successors, (381), 378 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-29 06:06:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3307 transitions. [2023-11-29 06:06:09,495 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3307 transitions. Word has length 420 [2023-11-29 06:06:09,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:09,495 INFO L495 AbstractCegarLoop]: Abstraction has 2697 states and 3307 transitions. [2023-11-29 06:06:09,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 06:06:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3307 transitions. [2023-11-29 06:06:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-11-29 06:06:09,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:09,500 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-11-29 06:06:09,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 06:06:09,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 06:06:09,701 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:09,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash 745002666, now seen corresponding path program 1 times [2023-11-29 06:06:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:09,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105327414] [2023-11-29 06:06:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:09,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012774877] [2023-11-29 06:06:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:09,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:09,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:09,730 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:09,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 06:06:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:09,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 06:06:09,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 17 proven. 3760 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 06:06:10,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 17 proven. 844 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-29 06:06:11,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:11,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105327414] [2023-11-29 06:06:11,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:11,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012774877] [2023-11-29 06:06:11,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012774877] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:11,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:11,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 54 [2023-11-29 06:06:11,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497356723] [2023-11-29 06:06:11,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:11,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-11-29 06:06:11,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:11,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-11-29 06:06:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=635, Invalid=2227, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 06:06:11,550 INFO L87 Difference]: Start difference. First operand 2697 states and 3307 transitions. Second operand has 54 states, 54 states have (on average 9.037037037037036) internal successors, (488), 54 states have internal predecessors, (488), 24 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) [2023-11-29 06:06:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:15,288 INFO L93 Difference]: Finished difference Result 5068 states and 6282 transitions. [2023-11-29 06:06:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-29 06:06:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 9.037037037037036) internal successors, (488), 54 states have internal predecessors, (488), 24 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) Word has length 428 [2023-11-29 06:06:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:15,295 INFO L225 Difference]: With dead ends: 5068 [2023-11-29 06:06:15,295 INFO L226 Difference]: Without dead ends: 4034 [2023-11-29 06:06:15,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3842 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3358, Invalid=11162, Unknown=0, NotChecked=0, Total=14520 [2023-11-29 06:06:15,300 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 658 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:15,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1283 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:06:15,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2023-11-29 06:06:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3807. [2023-11-29 06:06:16,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3191 states have (on average 1.1024757129426512) internal successors, (3518), 3208 states have internal predecessors, (3518), 543 states have call successors, (543), 59 states have call predecessors, (543), 59 states have return successors, (543), 539 states have call predecessors, (543), 543 states have call successors, (543) [2023-11-29 06:06:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4604 transitions. [2023-11-29 06:06:16,452 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4604 transitions. Word has length 428 [2023-11-29 06:06:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:16,452 INFO L495 AbstractCegarLoop]: Abstraction has 3807 states and 4604 transitions. [2023-11-29 06:06:16,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 9.037037037037036) internal successors, (488), 54 states have internal predecessors, (488), 24 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) [2023-11-29 06:06:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4604 transitions. [2023-11-29 06:06:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-11-29 06:06:16,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:16,457 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:06:16,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 06:06:16,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 06:06:16,658 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:16,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1044277621, now seen corresponding path program 2 times [2023-11-29 06:06:16,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:16,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194054908] [2023-11-29 06:06:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:16,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:16,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:16,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231479409] [2023-11-29 06:06:16,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:06:16,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:16,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:16,679 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:16,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 06:06:16,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:06:16,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:16,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:06:16,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 989 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-11-29 06:06:17,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 989 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-11-29 06:06:18,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:18,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194054908] [2023-11-29 06:06:18,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:18,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231479409] [2023-11-29 06:06:18,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231479409] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:18,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:18,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-29 06:06:18,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434110138] [2023-11-29 06:06:18,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:18,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:06:18,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:06:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:06:18,273 INFO L87 Difference]: Start difference. First operand 3807 states and 4604 transitions. Second operand has 26 states, 25 states have (on average 18.2) internal successors, (455), 26 states have internal predecessors, (455), 24 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 24 states have call predecessors, (84), 24 states have call successors, (84) [2023-11-29 06:06:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:23,658 INFO L93 Difference]: Finished difference Result 6159 states and 7471 transitions. [2023-11-29 06:06:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-29 06:06:23,658 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 18.2) internal successors, (455), 26 states have internal predecessors, (455), 24 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 24 states have call predecessors, (84), 24 states have call successors, (84) Word has length 437 [2023-11-29 06:06:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:23,664 INFO L225 Difference]: With dead ends: 6159 [2023-11-29 06:06:23,665 INFO L226 Difference]: Without dead ends: 5963 [2023-11-29 06:06:23,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1286, Invalid=2254, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 06:06:23,667 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2321 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:23,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 1135 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:06:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2023-11-29 06:06:24,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 4306. [2023-11-29 06:06:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 3616 states have (on average 1.1009402654867257) internal successors, (3981), 3632 states have internal predecessors, (3981), 619 states have call successors, (619), 57 states have call predecessors, (619), 57 states have return successors, (619), 616 states have call predecessors, (619), 619 states have call successors, (619) [2023-11-29 06:06:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 5219 transitions. [2023-11-29 06:06:24,772 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 5219 transitions. Word has length 437 [2023-11-29 06:06:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:24,773 INFO L495 AbstractCegarLoop]: Abstraction has 4306 states and 5219 transitions. [2023-11-29 06:06:24,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 18.2) internal successors, (455), 26 states have internal predecessors, (455), 24 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 24 states have call predecessors, (84), 24 states have call successors, (84) [2023-11-29 06:06:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 5219 transitions. [2023-11-29 06:06:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2023-11-29 06:06:24,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:24,777 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 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, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:24,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 06:06:24,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 06:06:24,977 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:24,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1391200460, now seen corresponding path program 3 times [2023-11-29 06:06:24,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:24,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717503949] [2023-11-29 06:06:24,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:24,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:24,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:24,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697521433] [2023-11-29 06:06:24,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:06:24,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:24,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:24,991 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:24,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 06:06:25,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2023-11-29 06:06:25,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:25,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:06:25,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-11-29 06:06:25,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:26,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-11-29 06:06:26,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:26,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717503949] [2023-11-29 06:06:26,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:26,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697521433] [2023-11-29 06:06:26,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697521433] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:26,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:26,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-29 06:06:26,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462220220] [2023-11-29 06:06:26,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:26,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:06:26,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:26,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:06:26,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=429, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:06:26,628 INFO L87 Difference]: Start difference. First operand 4306 states and 5219 transitions. Second operand has 26 states, 25 states have (on average 18.4) internal successors, (460), 26 states have internal predecessors, (460), 25 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) [2023-11-29 06:06:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:38,519 INFO L93 Difference]: Finished difference Result 7624 states and 9369 transitions. [2023-11-29 06:06:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 06:06:38,520 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 18.4) internal successors, (460), 26 states have internal predecessors, (460), 25 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) Word has length 460 [2023-11-29 06:06:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:38,530 INFO L225 Difference]: With dead ends: 7624 [2023-11-29 06:06:38,530 INFO L226 Difference]: Without dead ends: 7623 [2023-11-29 06:06:38,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1234, Invalid=2798, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 06:06:38,533 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2398 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 5378 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 5568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 5378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:38,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 2658 Invalid, 5568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 5378 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-29 06:06:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2023-11-29 06:06:40,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 5277. [2023-11-29 06:06:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 4431 states have (on average 1.132701421800948) internal successors, (5019), 4447 states have internal predecessors, (5019), 775 states have call successors, (775), 57 states have call predecessors, (775), 57 states have return successors, (775), 772 states have call predecessors, (775), 775 states have call successors, (775) [2023-11-29 06:06:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 6569 transitions. [2023-11-29 06:06:40,641 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 6569 transitions. Word has length 460 [2023-11-29 06:06:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:40,642 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 6569 transitions. [2023-11-29 06:06:40,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 18.4) internal successors, (460), 26 states have internal predecessors, (460), 25 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) [2023-11-29 06:06:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 6569 transitions. [2023-11-29 06:06:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-11-29 06:06:40,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:40,647 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:40,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 06:06:40,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:40,847 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:40,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:40,848 INFO L85 PathProgramCache]: Analyzing trace with hash -177541195, now seen corresponding path program 3 times [2023-11-29 06:06:40,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:40,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076487024] [2023-11-29 06:06:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:40,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:40,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:40,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207893259] [2023-11-29 06:06:40,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:06:40,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:40,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:40,868 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:40,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 06:06:40,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 06:06:40,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:40,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:06:40,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5235 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 5004 trivial. 0 not checked. [2023-11-29 06:06:41,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 5235 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 5004 trivial. 0 not checked. [2023-11-29 06:06:41,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076487024] [2023-11-29 06:06:41,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207893259] [2023-11-29 06:06:41,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207893259] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:41,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:06:41,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579658288] [2023-11-29 06:06:41,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:41,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:06:41,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:41,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:06:41,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:06:41,739 INFO L87 Difference]: Start difference. First operand 5277 states and 6569 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:06:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:44,015 INFO L93 Difference]: Finished difference Result 5427 states and 6745 transitions. [2023-11-29 06:06:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:06:44,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 461 [2023-11-29 06:06:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:44,023 INFO L225 Difference]: With dead ends: 5427 [2023-11-29 06:06:44,023 INFO L226 Difference]: Without dead ends: 5426 [2023-11-29 06:06:44,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:06:44,025 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 379 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:44,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 423 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:06:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2023-11-29 06:06:45,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 5277. [2023-11-29 06:06:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 4431 states have (on average 1.1299932295192958) internal successors, (5007), 4447 states have internal predecessors, (5007), 775 states have call successors, (775), 57 states have call predecessors, (775), 57 states have return successors, (775), 772 states have call predecessors, (775), 775 states have call successors, (775) [2023-11-29 06:06:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 6557 transitions. [2023-11-29 06:06:45,404 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 6557 transitions. Word has length 461 [2023-11-29 06:06:45,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:45,405 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 6557 transitions. [2023-11-29 06:06:45,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:06:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 6557 transitions. [2023-11-29 06:06:45,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 06:06:45,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:45,409 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:06:45,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 06:06:45,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:45,610 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:45,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2136948677, now seen corresponding path program 2 times [2023-11-29 06:06:45,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:45,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962142899] [2023-11-29 06:06:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:45,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:45,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:45,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842217366] [2023-11-29 06:06:45,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:06:45,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:45,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:45,626 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:45,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 06:06:45,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:06:45,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:45,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:06:45,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2676 proven. 426 refuted. 0 times theorem prover too weak. 2414 trivial. 0 not checked. [2023-11-29 06:06:46,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 636 proven. 426 refuted. 0 times theorem prover too weak. 4454 trivial. 0 not checked. [2023-11-29 06:06:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:46,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962142899] [2023-11-29 06:06:46,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:46,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842217366] [2023-11-29 06:06:46,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842217366] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:46,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:46,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2023-11-29 06:06:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304622818] [2023-11-29 06:06:46,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:46,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:06:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:06:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:06:46,327 INFO L87 Difference]: Start difference. First operand 5277 states and 6557 transitions. Second operand has 14 states, 14 states have (on average 17.285714285714285) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) [2023-11-29 06:06:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:50,402 INFO L93 Difference]: Finished difference Result 9381 states and 11836 transitions. [2023-11-29 06:06:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 06:06:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.285714285714285) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) Word has length 493 [2023-11-29 06:06:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:50,409 INFO L225 Difference]: With dead ends: 9381 [2023-11-29 06:06:50,409 INFO L226 Difference]: Without dead ends: 6357 [2023-11-29 06:06:50,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1009 GetRequests, 973 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:06:50,414 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 612 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:50,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1652 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:06:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6357 states. [2023-11-29 06:06:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6357 to 5434. [2023-11-29 06:06:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 4573 states have (on average 1.134266345943582) internal successors, (5187), 4588 states have internal predecessors, (5187), 799 states have call successors, (799), 48 states have call predecessors, (799), 48 states have return successors, (799), 797 states have call predecessors, (799), 799 states have call successors, (799) [2023-11-29 06:06:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 6785 transitions. [2023-11-29 06:06:51,837 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 6785 transitions. Word has length 493 [2023-11-29 06:06:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:51,837 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 6785 transitions. [2023-11-29 06:06:51,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.285714285714285) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) [2023-11-29 06:06:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 6785 transitions. [2023-11-29 06:06:51,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 06:06:51,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:51,843 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:06:51,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 06:06:52,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:52,044 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:52,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:52,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1710436318, now seen corresponding path program 3 times [2023-11-29 06:06:52,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:52,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11057846] [2023-11-29 06:06:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:52,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:52,062 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:52,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591430779] [2023-11-29 06:06:52,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:06:52,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:52,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:52,063 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:52,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 06:06:52,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 06:06:52,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:52,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:06:52,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6540 backedges. 736 proven. 0 refuted. 0 times theorem prover too weak. 5804 trivial. 0 not checked. [2023-11-29 06:06:52,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:06:52,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:52,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11057846] [2023-11-29 06:06:52,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:52,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591430779] [2023-11-29 06:06:52,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591430779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:06:52,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:06:52,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:06:52,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135482436] [2023-11-29 06:06:52,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:06:52,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:06:52,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:52,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:06:52,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:06:52,192 INFO L87 Difference]: Start difference. First operand 5434 states and 6785 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:06:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:53,801 INFO L93 Difference]: Finished difference Result 5482 states and 6849 transitions. [2023-11-29 06:06:53,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:06:53,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 534 [2023-11-29 06:06:53,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:53,808 INFO L225 Difference]: With dead ends: 5482 [2023-11-29 06:06:53,808 INFO L226 Difference]: Without dead ends: 5481 [2023-11-29 06:06:53,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:06:53,809 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 28 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:53,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 224 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:06:53,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2023-11-29 06:06:55,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5474. [2023-11-29 06:06:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 4613 states have (on average 1.1320182094081943) internal successors, (5222), 4628 states have internal predecessors, (5222), 799 states have call successors, (799), 48 states have call predecessors, (799), 48 states have return successors, (799), 797 states have call predecessors, (799), 799 states have call successors, (799) [2023-11-29 06:06:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 6820 transitions. [2023-11-29 06:06:55,226 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 6820 transitions. Word has length 534 [2023-11-29 06:06:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:55,227 INFO L495 AbstractCegarLoop]: Abstraction has 5474 states and 6820 transitions. [2023-11-29 06:06:55,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:06:55,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 6820 transitions. [2023-11-29 06:06:55,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-11-29 06:06:55,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:55,232 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:55,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 06:06:55,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:55,432 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:06:55,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:55,433 INFO L85 PathProgramCache]: Analyzing trace with hash 116403383, now seen corresponding path program 3 times [2023-11-29 06:06:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:55,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200544869] [2023-11-29 06:06:55,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:55,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:55,448 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:55,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573176098] [2023-11-29 06:06:55,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:06:55,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:55,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:55,449 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:55,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b960c4f-bd7d-43a0-8c3f-fe8e41320053/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 06:06:56,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 06:06:56,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:06:56,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 06:06:56,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 6543 backedges. 614 proven. 1159 refuted. 0 times theorem prover too weak. 4770 trivial. 0 not checked. [2023-11-29 06:08:48,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:08:54,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:08:54,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200544869] [2023-11-29 06:08:54,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:08:54,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573176098] [2023-11-29 06:08:54,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573176098] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:08:54,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:08:54,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-29 06:08:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584186810] [2023-11-29 06:08:54,442 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:08:54,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:08:54,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:08:54,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:08:54,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=557, Unknown=6, NotChecked=0, Total=650 [2023-11-29 06:08:54,444 INFO L87 Difference]: Start difference. First operand 5474 states and 6820 transitions. Second operand has 22 states, 20 states have (on average 7.05) internal successors, (141), 21 states have internal predecessors, (141), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 6 states have call predecessors, (21), 8 states have call successors, (21) [2023-11-29 06:09:00,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:04,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:10,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:16,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:22,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:24,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:28,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:32,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:37,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:38,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:43,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:46,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:50,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:09:59,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:07,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:11,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:15,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:19,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:25,733 WARN L539 Checker$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 06:10:32,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:36,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:39,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:43,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:10:47,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:04,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:05,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:18,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:22,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:26,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:31,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:36,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:40,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:11:48,713 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 46 DAG size of output: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:12:03,474 WARN L293 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 52 DAG size of output: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:12:22,902 WARN L293 SmtUtils]: Spent 16.16s on a formula simplification. DAG size of input: 56 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:12:38,529 WARN L293 SmtUtils]: Spent 13.33s on a formula simplification. DAG size of input: 58 DAG size of output: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:12:44,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:12:49,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:12:53,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:12:58,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:13:23,912 WARN L293 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 54 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:13:28,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:13:32,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:13:36,963 WARN L539 Checker$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 06:13:41,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:13:43,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:13:48,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:13:52,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:14:04,150 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification. DAG size of input: 72 DAG size of output: 72 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:14:09,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:14:16,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:14:48,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:14:50,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:09,899 WARN L293 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 57 DAG size of output: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:15:14,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:19,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:24,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:28,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:33,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:40,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:15:44,290 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]