./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/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_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/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_ce8d672d-7634-4ba6-97b2-8203af9da874/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 35aee247a9d57b19731affe394846ba9ce20d46b03fd5dbce1e446f98386181b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:18:28,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:18:28,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:18:28,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:18:28,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:18:28,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:18:28,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:18:28,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:18:28,666 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:18:28,666 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:18:28,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:18:28,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:18:28,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:18:28,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:18:28,669 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:18:28,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:18:28,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:18:28,671 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:18:28,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:18:28,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:18:28,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:18:28,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:18:28,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:18:28,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:18:28,679 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:18:28,679 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:18:28,679 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:18:28,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:18:28,680 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:18:28,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:18:28,681 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:18:28,681 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:18:28,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:18:28,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:18:28,682 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:18:28,682 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:18:28,682 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:18:28,683 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:18:28,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:18:28,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:18:28,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:18:28,684 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:18:28,684 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:18:28,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:18:28,684 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_ce8d672d-7634-4ba6-97b2-8203af9da874/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35aee247a9d57b19731affe394846ba9ce20d46b03fd5dbce1e446f98386181b [2023-11-29 03:18:28,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:18:28,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:18:28,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:18:28,908 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:18:28,909 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:18:28,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c [2023-11-29 03:18:31,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:18:31,856 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:18:31,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c [2023-11-29 03:18:31,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/data/693e3eb50/1b41556ad7a9430080f234103ec6a898/FLAG29ec40b6a [2023-11-29 03:18:31,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/data/693e3eb50/1b41556ad7a9430080f234103ec6a898 [2023-11-29 03:18:31,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:18:31,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:18:31,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:18:31,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:18:31,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:18:31,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:18:31" (1/1) ... [2023-11-29 03:18:31,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c79d067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:31, skipping insertion in model container [2023-11-29 03:18:31,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:18:31" (1/1) ... [2023-11-29 03:18:31,905 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:18:32,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:18:32,095 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:18:32,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:18:32,125 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:18:32,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32 WrapperNode [2023-11-29 03:18:32,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:18:32,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:18:32,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:18:32,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:18:32,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,161 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-11-29 03:18:32,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:18:32,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:18:32,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:18:32,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:18:32,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,172 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,184 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:18:32,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:18:32,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:18:32,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:18:32,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:18:32,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:18:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:32,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:18:32,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:18:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:18:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:18:32,263 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:18:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:18:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:18:32,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:18:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:18:32,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:18:32,330 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:18:32,332 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:18:32,584 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:18:32,609 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:18:32,609 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:18:32,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:32 BoogieIcfgContainer [2023-11-29 03:18:32,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:18:32,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:18:32,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:18:32,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:18:32,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:18:31" (1/3) ... [2023-11-29 03:18:32,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c25250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:18:32, skipping insertion in model container [2023-11-29 03:18:32,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (2/3) ... [2023-11-29 03:18:32,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c25250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:18:32, skipping insertion in model container [2023-11-29 03:18:32,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:32" (3/3) ... [2023-11-29 03:18:32,620 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound1.c [2023-11-29 03:18:32,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:18:32,639 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 03:18:32,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:18:32,690 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;@6a0e091a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:18:32,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-29 03:18:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:18:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:18:32,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:32,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:32,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:32,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:32,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1812025852, now seen corresponding path program 1 times [2023-11-29 03:18:32,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:32,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119215706] [2023-11-29 03:18:32,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:32,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:32,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:32,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119215706] [2023-11-29 03:18:32,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:18:32,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29661261] [2023-11-29 03:18:32,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:32,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:32,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:32,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:32,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:18:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:32,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:18:32,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:18:32,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:32,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29661261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:32,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:32,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83862885] [2023-11-29 03:18:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:32,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:18:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:18:32,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:18:32,976 INFO L87 Difference]: Start difference. First operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:18:33,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:33,013 INFO L93 Difference]: Finished difference Result 172 states and 211 transitions. [2023-11-29 03:18:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:18:33,016 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 03:18:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:33,021 INFO L225 Difference]: With dead ends: 172 [2023-11-29 03:18:33,022 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 03:18:33,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:18:33,035 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:33,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:18:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 03:18:33,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 03:18:33,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 72 states have internal predecessors, (74), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:18:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-11-29 03:18:33,080 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 20 [2023-11-29 03:18:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:33,080 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-11-29 03:18:33,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:18:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-11-29 03:18:33,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:18:33,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:33,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:33,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:18:33,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:33,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 982000830, now seen corresponding path program 1 times [2023-11-29 03:18:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:33,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420184416] [2023-11-29 03:18:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:33,306 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:33,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067042119] [2023-11-29 03:18:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:33,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:33,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:33,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:33,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:18:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:18:33,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:18:33,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:33,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:33,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420184416] [2023-11-29 03:18:33,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:33,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067042119] [2023-11-29 03:18:33,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067042119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:33,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:33,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:18:33,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725257511] [2023-11-29 03:18:33,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:33,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:18:33,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:33,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:18:33,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:18:33,462 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:18:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:33,640 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2023-11-29 03:18:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:18:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 03:18:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:33,642 INFO L225 Difference]: With dead ends: 84 [2023-11-29 03:18:33,642 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 03:18:33,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:33,644 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 116 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:33,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 132 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 03:18:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 03:18:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 66 states have internal predecessors, (68), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:18:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2023-11-29 03:18:33,655 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 20 [2023-11-29 03:18:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:33,657 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2023-11-29 03:18:33,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:18:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2023-11-29 03:18:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:18:33,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:33,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:33,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:18:33,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 03:18:33,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:33,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash 377254708, now seen corresponding path program 1 times [2023-11-29 03:18:33,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80625588] [2023-11-29 03:18:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:33,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:33,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627441724] [2023-11-29 03:18:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:33,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:33,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:33,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:33,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:18:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:18:33,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:18:33,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:33,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80625588] [2023-11-29 03:18:33,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627441724] [2023-11-29 03:18:33,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627441724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:33,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:33,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:18:33,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924557481] [2023-11-29 03:18:33,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:33,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:18:33,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:33,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:18:33,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:18:33,992 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:18:34,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:34,175 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2023-11-29 03:18:34,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:18:34,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-29 03:18:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:34,177 INFO L225 Difference]: With dead ends: 101 [2023-11-29 03:18:34,177 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 03:18:34,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:34,179 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 156 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:34,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 155 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 03:18:34,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2023-11-29 03:18:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 69 states have internal predecessors, (71), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:18:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2023-11-29 03:18:34,192 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 21 [2023-11-29 03:18:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:34,193 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2023-11-29 03:18:34,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:18:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2023-11-29 03:18:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:18:34,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:34,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:34,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:34,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:34,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:34,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:34,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1646507377, now seen corresponding path program 1 times [2023-11-29 03:18:34,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:34,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605127123] [2023-11-29 03:18:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:34,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:34,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:34,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697547670] [2023-11-29 03:18:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:34,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:34,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:34,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:34,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:18:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:18:34,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:18:34,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:34,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:34,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605127123] [2023-11-29 03:18:34,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:34,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697547670] [2023-11-29 03:18:34,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697547670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:34,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:34,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:18:34,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640383847] [2023-11-29 03:18:34,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:34,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:18:34,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:34,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:18:34,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:18:34,534 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:18:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:34,751 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2023-11-29 03:18:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:18:34,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2023-11-29 03:18:34,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:34,754 INFO L225 Difference]: With dead ends: 138 [2023-11-29 03:18:34,754 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:18:34,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:34,755 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 221 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:34,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 146 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:34,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:18:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2023-11-29 03:18:34,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.5714285714285714) internal successors, (110), 93 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:18:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 140 transitions. [2023-11-29 03:18:34,773 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 140 transitions. Word has length 27 [2023-11-29 03:18:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:34,774 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 140 transitions. [2023-11-29 03:18:34,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:18:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 140 transitions. [2023-11-29 03:18:34,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:18:34,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:34,776 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:34,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:18:34,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:34,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:34,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:34,982 INFO L85 PathProgramCache]: Analyzing trace with hash 497878920, now seen corresponding path program 1 times [2023-11-29 03:18:34,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:34,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130338069] [2023-11-29 03:18:34,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:34,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:34,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:34,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935887464] [2023-11-29 03:18:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:34,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:34,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:34,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:34,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:18:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:35,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:18:35,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:18:35,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:35,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:35,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130338069] [2023-11-29 03:18:35,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:35,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935887464] [2023-11-29 03:18:35,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935887464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:35,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:35,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:18:35,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390210148] [2023-11-29 03:18:35,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:35,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:18:35,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:18:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:18:35,116 INFO L87 Difference]: Start difference. First operand 111 states and 140 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:18:35,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:35,288 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2023-11-29 03:18:35,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:18:35,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-29 03:18:35,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:35,290 INFO L225 Difference]: With dead ends: 138 [2023-11-29 03:18:35,290 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:18:35,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:35,292 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 156 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:35,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 160 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:35,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:18:35,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 112. [2023-11-29 03:18:35,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:18:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2023-11-29 03:18:35,306 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 28 [2023-11-29 03:18:35,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:35,307 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2023-11-29 03:18:35,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:18:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2023-11-29 03:18:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:18:35,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:35,308 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:35,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:18:35,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:35,514 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:35,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:35,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1745622607, now seen corresponding path program 1 times [2023-11-29 03:18:35,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:35,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288072307] [2023-11-29 03:18:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:35,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:35,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:35,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71963099] [2023-11-29 03:18:35,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:35,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:35,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:35,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:35,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:18:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:35,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:18:35,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:18:35,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:18:35,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:35,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288072307] [2023-11-29 03:18:35,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:35,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71963099] [2023-11-29 03:18:35,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71963099] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:35,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:35,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 03:18:35,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152788612] [2023-11-29 03:18:35,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:35,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:18:35,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:35,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:18:35,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:18:35,767 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 03:18:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:36,067 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2023-11-29 03:18:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:18:36,068 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 29 [2023-11-29 03:18:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:36,069 INFO L225 Difference]: With dead ends: 129 [2023-11-29 03:18:36,070 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:18:36,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:18:36,071 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 292 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:36,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 251 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:36,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:18:36,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 110. [2023-11-29 03:18:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 92 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:18:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2023-11-29 03:18:36,088 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 29 [2023-11-29 03:18:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:36,088 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2023-11-29 03:18:36,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 03:18:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2023-11-29 03:18:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:18:36,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:36,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:36,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:18:36,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:36,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:36,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1720274090, now seen corresponding path program 1 times [2023-11-29 03:18:36,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:36,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662173231] [2023-11-29 03:18:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:36,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:36,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023533675] [2023-11-29 03:18:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:36,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:36,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:36,304 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:36,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:18:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:36,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:18:36,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:18:36,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662173231] [2023-11-29 03:18:36,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023533675] [2023-11-29 03:18:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023533675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:36,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:18:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172483901] [2023-11-29 03:18:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:36,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:18:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:36,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:18:36,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:36,495 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:18:36,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:36,703 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2023-11-29 03:18:36,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:18:36,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2023-11-29 03:18:36,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:36,705 INFO L225 Difference]: With dead ends: 126 [2023-11-29 03:18:36,705 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 03:18:36,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:18:36,706 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:36,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 159 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:36,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 03:18:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2023-11-29 03:18:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 90 states have internal predecessors, (100), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:18:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2023-11-29 03:18:36,720 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 30 [2023-11-29 03:18:36,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:36,720 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2023-11-29 03:18:36,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:18:36,720 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2023-11-29 03:18:36,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:18:36,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:36,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:36,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:18:36,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 03:18:36,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:36,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705951, now seen corresponding path program 1 times [2023-11-29 03:18:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856933488] [2023-11-29 03:18:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:36,934 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:36,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728815319] [2023-11-29 03:18:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:36,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:36,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:36,935 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:36,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:18:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:36,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:18:36,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:18:37,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:18:37,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:37,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856933488] [2023-11-29 03:18:37,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:37,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728815319] [2023-11-29 03:18:37,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728815319] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:37,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:37,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 03:18:37,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078456375] [2023-11-29 03:18:37,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:37,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:18:37,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:37,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:18:37,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:18:37,170 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 03:18:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:37,602 INFO L93 Difference]: Finished difference Result 216 states and 249 transitions. [2023-11-29 03:18:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:18:37,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 39 [2023-11-29 03:18:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:37,604 INFO L225 Difference]: With dead ends: 216 [2023-11-29 03:18:37,604 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 03:18:37,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:18:37,606 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 732 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:37,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 193 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:18:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 03:18:37,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 171. [2023-11-29 03:18:37,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 123 states have (on average 1.4227642276422765) internal successors, (175), 143 states have internal predecessors, (175), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 03:18:37,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 225 transitions. [2023-11-29 03:18:37,628 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 225 transitions. Word has length 39 [2023-11-29 03:18:37,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:37,629 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 225 transitions. [2023-11-29 03:18:37,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 03:18:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 225 transitions. [2023-11-29 03:18:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:18:37,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:37,631 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:37,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:18:37,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 03:18:37,833 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:37,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash -221741680, now seen corresponding path program 1 times [2023-11-29 03:18:37,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:37,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899084022] [2023-11-29 03:18:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:37,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:37,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:37,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260765419] [2023-11-29 03:18:37,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:37,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:37,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:37,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:37,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:18:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:37,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:18:37,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:18:37,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:37,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:37,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899084022] [2023-11-29 03:18:37,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:37,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260765419] [2023-11-29 03:18:37,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260765419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:37,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:37,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624293513] [2023-11-29 03:18:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:37,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:18:37,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:37,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:18:37,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:37,966 INFO L87 Difference]: Start difference. First operand 171 states and 225 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:38,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:38,108 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2023-11-29 03:18:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:18:38,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-11-29 03:18:38,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:38,111 INFO L225 Difference]: With dead ends: 229 [2023-11-29 03:18:38,112 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 03:18:38,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:18:38,113 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:38,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 88 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 03:18:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2023-11-29 03:18:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 160 states have internal predecessors, (195), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:18:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 253 transitions. [2023-11-29 03:18:38,138 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 253 transitions. Word has length 59 [2023-11-29 03:18:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:38,138 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 253 transitions. [2023-11-29 03:18:38,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 253 transitions. [2023-11-29 03:18:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:18:38,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:38,140 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:38,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:18:38,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 03:18:38,342 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:38,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:38,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1715942605, now seen corresponding path program 1 times [2023-11-29 03:18:38,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:38,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374065794] [2023-11-29 03:18:38,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:38,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:38,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:38,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925470384] [2023-11-29 03:18:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:38,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:38,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:38,356 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:38,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:18:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:38,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:18:38,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:18:38,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:38,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:38,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374065794] [2023-11-29 03:18:38,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:38,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925470384] [2023-11-29 03:18:38,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925470384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:38,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:38,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:38,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782697469] [2023-11-29 03:18:38,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:38,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:18:38,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:38,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:18:38,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:38,451 INFO L87 Difference]: Start difference. First operand 192 states and 253 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:38,580 INFO L93 Difference]: Finished difference Result 229 states and 286 transitions. [2023-11-29 03:18:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:18:38,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-11-29 03:18:38,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:38,582 INFO L225 Difference]: With dead ends: 229 [2023-11-29 03:18:38,582 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 03:18:38,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:18:38,583 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 132 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:38,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 90 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 03:18:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2023-11-29 03:18:38,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 161 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:18:38,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2023-11-29 03:18:38,601 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 60 [2023-11-29 03:18:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:38,601 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2023-11-29 03:18:38,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2023-11-29 03:18:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:18:38,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:38,603 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:38,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:18:38,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:18:38,806 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:38,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:38,807 INFO L85 PathProgramCache]: Analyzing trace with hash -246595163, now seen corresponding path program 1 times [2023-11-29 03:18:38,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:38,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278942584] [2023-11-29 03:18:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:38,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:38,817 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:38,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075789127] [2023-11-29 03:18:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:38,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:38,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:38,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:38,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:18:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:38,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:18:38,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:18:38,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:38,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:38,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278942584] [2023-11-29 03:18:38,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:38,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075789127] [2023-11-29 03:18:38,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075789127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:38,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:38,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:38,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39959907] [2023-11-29 03:18:38,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:38,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:38,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:38,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:38,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:38,893 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:18:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:38,946 INFO L93 Difference]: Finished difference Result 201 states and 253 transitions. [2023-11-29 03:18:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:38,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-11-29 03:18:38,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:38,949 INFO L225 Difference]: With dead ends: 201 [2023-11-29 03:18:38,949 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 03:18:38,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:38,950 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:38,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:18:38,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 03:18:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 194. [2023-11-29 03:18:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 142 states have (on average 1.3450704225352113) internal successors, (191), 162 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:18:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 249 transitions. [2023-11-29 03:18:38,973 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 249 transitions. Word has length 62 [2023-11-29 03:18:38,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:38,974 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 249 transitions. [2023-11-29 03:18:38,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:18:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 249 transitions. [2023-11-29 03:18:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:18:38,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:38,975 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:38,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:18:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:18:39,176 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:39,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash 945484661, now seen corresponding path program 1 times [2023-11-29 03:18:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826933111] [2023-11-29 03:18:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:39,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:39,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338348186] [2023-11-29 03:18:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:39,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:39,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:39,188 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:39,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:18:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:39,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:18:39,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:39,297 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:18:39,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:39,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826933111] [2023-11-29 03:18:39,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338348186] [2023-11-29 03:18:39,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338348186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:39,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:39,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:18:39,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377900854] [2023-11-29 03:18:39,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:39,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:18:39,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:39,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:18:39,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:18:39,299 INFO L87 Difference]: Start difference. First operand 194 states and 249 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:18:39,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:39,373 INFO L93 Difference]: Finished difference Result 194 states and 249 transitions. [2023-11-29 03:18:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:18:39,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-11-29 03:18:39,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:39,376 INFO L225 Difference]: With dead ends: 194 [2023-11-29 03:18:39,376 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:18:39,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:18:39,377 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:39,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 129 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:18:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:18:39,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-29 03:18:39,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3309859154929577) internal successors, (189), 161 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:18:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2023-11-29 03:18:39,395 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 63 [2023-11-29 03:18:39,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:39,395 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2023-11-29 03:18:39,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:18:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2023-11-29 03:18:39,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:18:39,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:39,397 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:39,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:18:39,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:39,603 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:39,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash -754746457, now seen corresponding path program 1 times [2023-11-29 03:18:39,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:39,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692285428] [2023-11-29 03:18:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:39,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:39,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913905787] [2023-11-29 03:18:39,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:39,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:39,615 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:39,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:18:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:39,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:18:39,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:18:39,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:39,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692285428] [2023-11-29 03:18:39,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913905787] [2023-11-29 03:18:39,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913905787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:39,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:39,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:39,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100269913] [2023-11-29 03:18:39,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:39,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:18:39,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:39,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:18:39,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:39,732 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:39,793 INFO L93 Difference]: Finished difference Result 193 states and 247 transitions. [2023-11-29 03:18:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:18:39,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-11-29 03:18:39,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:39,795 INFO L225 Difference]: With dead ends: 193 [2023-11-29 03:18:39,795 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:18:39,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:39,797 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:39,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 96 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:18:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:18:39,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 03:18:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 142 states have (on average 1.3169014084507042) internal successors, (187), 160 states have internal predecessors, (187), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:18:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 245 transitions. [2023-11-29 03:18:39,821 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 245 transitions. Word has length 64 [2023-11-29 03:18:39,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:39,821 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 245 transitions. [2023-11-29 03:18:39,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:39,821 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 245 transitions. [2023-11-29 03:18:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:18:39,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:39,823 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:39,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:18:40,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:18:40,023 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:40,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1922303561, now seen corresponding path program 1 times [2023-11-29 03:18:40,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:40,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418053583] [2023-11-29 03:18:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:40,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:40,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124169781] [2023-11-29 03:18:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:40,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:40,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:40,033 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:40,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:18:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:18:40,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:18:40,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:40,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:40,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418053583] [2023-11-29 03:18:40,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:40,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124169781] [2023-11-29 03:18:40,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124169781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:40,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:40,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:40,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412427583] [2023-11-29 03:18:40,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:40,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:18:40,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:18:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:40,163 INFO L87 Difference]: Start difference. First operand 192 states and 245 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:40,268 INFO L93 Difference]: Finished difference Result 210 states and 256 transitions. [2023-11-29 03:18:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:18:40,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2023-11-29 03:18:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:40,271 INFO L225 Difference]: With dead ends: 210 [2023-11-29 03:18:40,271 INFO L226 Difference]: Without dead ends: 209 [2023-11-29 03:18:40,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:40,272 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 45 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:40,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-29 03:18:40,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 196. [2023-11-29 03:18:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 164 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:18:40,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 249 transitions. [2023-11-29 03:18:40,293 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 249 transitions. Word has length 65 [2023-11-29 03:18:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:40,294 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 249 transitions. [2023-11-29 03:18:40,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:18:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 249 transitions. [2023-11-29 03:18:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:18:40,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:40,295 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:40,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:40,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:18:40,496 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:40,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:40,496 INFO L85 PathProgramCache]: Analyzing trace with hash 116785460, now seen corresponding path program 1 times [2023-11-29 03:18:40,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:40,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200816297] [2023-11-29 03:18:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:40,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:40,503 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:40,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297790302] [2023-11-29 03:18:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:40,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:40,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:40,504 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:40,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:18:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:18:40,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:40,789 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:18:40,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:40,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200816297] [2023-11-29 03:18:40,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297790302] [2023-11-29 03:18:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297790302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:18:40,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:18:40,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:18:40,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568957193] [2023-11-29 03:18:40,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:40,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:18:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:18:40,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:18:40,943 INFO L87 Difference]: Start difference. First operand 196 states and 249 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:18:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:41,412 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2023-11-29 03:18:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:18:41,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 74 [2023-11-29 03:18:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:41,414 INFO L225 Difference]: With dead ends: 288 [2023-11-29 03:18:41,414 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 03:18:41,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:18:41,415 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 297 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:41,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 310 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:18:41,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 03:18:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 256. [2023-11-29 03:18:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 214 states have internal predecessors, (260), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 03:18:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 338 transitions. [2023-11-29 03:18:41,436 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 338 transitions. Word has length 74 [2023-11-29 03:18:41,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:41,437 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 338 transitions. [2023-11-29 03:18:41,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:18:41,437 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 338 transitions. [2023-11-29 03:18:41,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:18:41,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:41,438 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:41,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:18:41,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:18:41,638 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:41,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:41,639 INFO L85 PathProgramCache]: Analyzing trace with hash -674617981, now seen corresponding path program 1 times [2023-11-29 03:18:41,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:41,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988397510] [2023-11-29 03:18:41,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:41,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:41,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:41,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649819323] [2023-11-29 03:18:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:41,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:41,648 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:41,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:18:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:41,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:18:41,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:18:41,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:42,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:42,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988397510] [2023-11-29 03:18:42,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:42,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649819323] [2023-11-29 03:18:42,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649819323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:18:42,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:18:42,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:18:42,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147110797] [2023-11-29 03:18:42,106 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:42,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:18:42,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:42,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:18:42,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:18:42,108 INFO L87 Difference]: Start difference. First operand 256 states and 338 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:18:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:42,491 INFO L93 Difference]: Finished difference Result 351 states and 441 transitions. [2023-11-29 03:18:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:18:42,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2023-11-29 03:18:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:42,494 INFO L225 Difference]: With dead ends: 351 [2023-11-29 03:18:42,494 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 03:18:42,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:18:42,495 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:42,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 300 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:18:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 03:18:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 315. [2023-11-29 03:18:42,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 263 states have internal predecessors, (323), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 03:18:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 421 transitions. [2023-11-29 03:18:42,532 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 421 transitions. Word has length 75 [2023-11-29 03:18:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:42,533 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 421 transitions. [2023-11-29 03:18:42,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:18:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 421 transitions. [2023-11-29 03:18:42,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 03:18:42,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:42,534 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:42,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:42,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:18:42,735 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:42,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:42,735 INFO L85 PathProgramCache]: Analyzing trace with hash 561679126, now seen corresponding path program 1 times [2023-11-29 03:18:42,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:42,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596821536] [2023-11-29 03:18:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:42,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:42,743 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:42,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425204178] [2023-11-29 03:18:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:42,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:42,744 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:42,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:18:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:42,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:18:42,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 03:18:42,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:42,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:42,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596821536] [2023-11-29 03:18:42,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:42,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425204178] [2023-11-29 03:18:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425204178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:42,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:18:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958348373] [2023-11-29 03:18:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:42,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:18:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:18:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:18:42,859 INFO L87 Difference]: Start difference. First operand 315 states and 421 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 03:18:43,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:43,080 INFO L93 Difference]: Finished difference Result 475 states and 621 transitions. [2023-11-29 03:18:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:18:43,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-11-29 03:18:43,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:43,083 INFO L225 Difference]: With dead ends: 475 [2023-11-29 03:18:43,083 INFO L226 Difference]: Without dead ends: 472 [2023-11-29 03:18:43,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:18:43,084 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 144 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:43,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 176 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-29 03:18:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 382. [2023-11-29 03:18:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 319 states have internal predecessors, (399), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 03:18:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 519 transitions. [2023-11-29 03:18:43,142 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 519 transitions. Word has length 76 [2023-11-29 03:18:43,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:43,143 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 519 transitions. [2023-11-29 03:18:43,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 03:18:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 519 transitions. [2023-11-29 03:18:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 03:18:43,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:43,144 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:43,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:18:43,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:18:43,345 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:43,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:43,345 INFO L85 PathProgramCache]: Analyzing trace with hash 232183781, now seen corresponding path program 1 times [2023-11-29 03:18:43,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:43,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427436774] [2023-11-29 03:18:43,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:43,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:43,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917789028] [2023-11-29 03:18:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:43,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:43,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:43,353 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:43,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:18:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:43,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:18:43,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:18:43,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:43,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:43,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427436774] [2023-11-29 03:18:43,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:43,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917789028] [2023-11-29 03:18:43,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917789028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:18:43,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:18:43,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:18:43,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888740283] [2023-11-29 03:18:43,661 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:43,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:18:43,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:43,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:18:43,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:18:43,662 INFO L87 Difference]: Start difference. First operand 382 states and 519 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 03:18:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:43,931 INFO L93 Difference]: Finished difference Result 491 states and 646 transitions. [2023-11-29 03:18:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:18:43,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 77 [2023-11-29 03:18:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:43,933 INFO L225 Difference]: With dead ends: 491 [2023-11-29 03:18:43,933 INFO L226 Difference]: Without dead ends: 165 [2023-11-29 03:18:43,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:18:43,936 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 105 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:43,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 178 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:43,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-29 03:18:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 158. [2023-11-29 03:18:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 131 states have internal predecessors, (148), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:18:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 196 transitions. [2023-11-29 03:18:43,948 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 196 transitions. Word has length 77 [2023-11-29 03:18:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:43,949 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 196 transitions. [2023-11-29 03:18:43,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 03:18:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 196 transitions. [2023-11-29 03:18:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 03:18:43,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:43,950 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:43,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:44,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:18:44,151 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:44,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:44,151 INFO L85 PathProgramCache]: Analyzing trace with hash 742198340, now seen corresponding path program 1 times [2023-11-29 03:18:44,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:44,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851667148] [2023-11-29 03:18:44,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:44,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:44,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:44,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106876430] [2023-11-29 03:18:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:44,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:44,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:44,168 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:44,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:18:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:44,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:18:44,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:44,299 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:44,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:44,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851667148] [2023-11-29 03:18:44,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106876430] [2023-11-29 03:18:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106876430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:44,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:18:44,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543226776] [2023-11-29 03:18:44,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:44,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:18:44,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:44,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:18:44,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:44,433 INFO L87 Difference]: Start difference. First operand 158 states and 196 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:18:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:44,696 INFO L93 Difference]: Finished difference Result 337 states and 421 transitions. [2023-11-29 03:18:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:18:44,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 97 [2023-11-29 03:18:44,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:44,698 INFO L225 Difference]: With dead ends: 337 [2023-11-29 03:18:44,699 INFO L226 Difference]: Without dead ends: 335 [2023-11-29 03:18:44,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:18:44,699 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 286 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:44,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 251 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-11-29 03:18:44,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 264. [2023-11-29 03:18:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 215 states have internal predecessors, (265), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 03:18:44,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 357 transitions. [2023-11-29 03:18:44,721 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 357 transitions. Word has length 97 [2023-11-29 03:18:44,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:44,722 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 357 transitions. [2023-11-29 03:18:44,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:18:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 357 transitions. [2023-11-29 03:18:44,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 03:18:44,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:44,723 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:44,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:18:44,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:44,924 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:44,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:44,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1533312153, now seen corresponding path program 1 times [2023-11-29 03:18:44,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:44,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258961485] [2023-11-29 03:18:44,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:44,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:44,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:44,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724974650] [2023-11-29 03:18:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:44,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:44,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:44,934 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:44,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:18:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:44,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:18:44,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:45,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258961485] [2023-11-29 03:18:45,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724974650] [2023-11-29 03:18:45,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724974650] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:45,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:45,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:18:45,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714816663] [2023-11-29 03:18:45,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:45,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:18:45,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:18:45,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:45,138 INFO L87 Difference]: Start difference. First operand 264 states and 357 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:18:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:45,419 INFO L93 Difference]: Finished difference Result 338 states and 413 transitions. [2023-11-29 03:18:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:18:45,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 98 [2023-11-29 03:18:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:45,422 INFO L225 Difference]: With dead ends: 338 [2023-11-29 03:18:45,422 INFO L226 Difference]: Without dead ends: 336 [2023-11-29 03:18:45,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:18:45,423 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 271 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:45,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 275 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-29 03:18:45,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 265. [2023-11-29 03:18:45,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 201 states have (on average 1.2786069651741294) internal successors, (257), 216 states have internal predecessors, (257), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 03:18:45,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 349 transitions. [2023-11-29 03:18:45,458 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 349 transitions. Word has length 98 [2023-11-29 03:18:45,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:45,459 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 349 transitions. [2023-11-29 03:18:45,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:18:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 349 transitions. [2023-11-29 03:18:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 03:18:45,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:45,460 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:45,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:45,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:45,661 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:45,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 339199601, now seen corresponding path program 1 times [2023-11-29 03:18:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:45,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145108216] [2023-11-29 03:18:45,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:45,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:45,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302718451] [2023-11-29 03:18:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:45,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:45,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:45,673 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:45,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:18:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:45,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:18:45,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:45,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:18:45,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:45,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145108216] [2023-11-29 03:18:45,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:45,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302718451] [2023-11-29 03:18:45,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302718451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:45,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:45,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:45,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833787350] [2023-11-29 03:18:45,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:45,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:18:45,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:18:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:45,799 INFO L87 Difference]: Start difference. First operand 265 states and 349 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:18:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:45,894 INFO L93 Difference]: Finished difference Result 270 states and 349 transitions. [2023-11-29 03:18:45,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:18:45,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-11-29 03:18:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:45,897 INFO L225 Difference]: With dead ends: 270 [2023-11-29 03:18:45,897 INFO L226 Difference]: Without dead ends: 269 [2023-11-29 03:18:45,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:18:45,898 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 21 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:45,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 200 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-29 03:18:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 264. [2023-11-29 03:18:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 201 states have (on average 1.2736318407960199) internal successors, (256), 215 states have internal predecessors, (256), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 03:18:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 348 transitions. [2023-11-29 03:18:45,932 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 348 transitions. Word has length 100 [2023-11-29 03:18:45,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:45,933 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 348 transitions. [2023-11-29 03:18:45,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 03:18:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 348 transitions. [2023-11-29 03:18:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:18:45,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:45,934 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:45,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:18:46,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:46,135 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:46,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash -962612885, now seen corresponding path program 1 times [2023-11-29 03:18:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:46,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209643769] [2023-11-29 03:18:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:46,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:46,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:46,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383293917] [2023-11-29 03:18:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:46,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:46,145 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:46,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:18:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:18:46,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:46,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:46,444 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:18:46,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209643769] [2023-11-29 03:18:46,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383293917] [2023-11-29 03:18:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383293917] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:46,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:46,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:18:46,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633035233] [2023-11-29 03:18:46,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:46,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:18:46,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:46,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:18:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:46,446 INFO L87 Difference]: Start difference. First operand 264 states and 348 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 03:18:46,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:46,995 INFO L93 Difference]: Finished difference Result 460 states and 576 transitions. [2023-11-29 03:18:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:18:46,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 103 [2023-11-29 03:18:46,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:46,999 INFO L225 Difference]: With dead ends: 460 [2023-11-29 03:18:47,000 INFO L226 Difference]: Without dead ends: 458 [2023-11-29 03:18:47,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:18:47,001 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 292 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:47,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 222 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:18:47,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-29 03:18:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 321. [2023-11-29 03:18:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 249 states have (on average 1.2811244979919678) internal successors, (319), 263 states have internal predecessors, (319), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 03:18:47,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 429 transitions. [2023-11-29 03:18:47,053 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 429 transitions. Word has length 103 [2023-11-29 03:18:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:47,054 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 429 transitions. [2023-11-29 03:18:47,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 03:18:47,054 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 429 transitions. [2023-11-29 03:18:47,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:18:47,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:47,056 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:47,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:18:47,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:47,258 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:47,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -961381523, now seen corresponding path program 1 times [2023-11-29 03:18:47,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:47,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121289014] [2023-11-29 03:18:47,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:47,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:47,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:47,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313796643] [2023-11-29 03:18:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:47,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:47,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:47,270 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:47,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:18:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:47,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:18:47,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:18:47,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:18:47,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:47,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121289014] [2023-11-29 03:18:47,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:47,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313796643] [2023-11-29 03:18:47,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313796643] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:47,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:47,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 03:18:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826938408] [2023-11-29 03:18:47,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:47,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:18:47,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:18:47,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:47,510 INFO L87 Difference]: Start difference. First operand 321 states and 429 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 03:18:47,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:47,728 INFO L93 Difference]: Finished difference Result 323 states and 431 transitions. [2023-11-29 03:18:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:18:47,729 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 103 [2023-11-29 03:18:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:47,731 INFO L225 Difference]: With dead ends: 323 [2023-11-29 03:18:47,731 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 03:18:47,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:18:47,732 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 65 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:47,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 108 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:18:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 03:18:47,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 320. [2023-11-29 03:18:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 249 states have (on average 1.248995983935743) internal successors, (311), 262 states have internal predecessors, (311), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 03:18:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 421 transitions. [2023-11-29 03:18:47,784 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 421 transitions. Word has length 103 [2023-11-29 03:18:47,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:47,785 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 421 transitions. [2023-11-29 03:18:47,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 03:18:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 421 transitions. [2023-11-29 03:18:47,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:18:47,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:47,787 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:47,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:47,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 03:18:47,987 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:47,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:47,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1163676672, now seen corresponding path program 1 times [2023-11-29 03:18:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:47,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544188333] [2023-11-29 03:18:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:47,995 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:47,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759266678] [2023-11-29 03:18:47,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:47,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:47,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:47,997 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:47,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:18:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:18:48,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-29 03:18:48,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:18:48,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:48,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544188333] [2023-11-29 03:18:48,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:48,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759266678] [2023-11-29 03:18:48,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759266678] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:48,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:48,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2023-11-29 03:18:48,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334776657] [2023-11-29 03:18:48,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:48,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:18:48,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:48,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:18:48,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:18:48,420 INFO L87 Difference]: Start difference. First operand 320 states and 421 transitions. Second operand has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 10 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (24), 9 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-29 03:18:48,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:48,560 INFO L93 Difference]: Finished difference Result 327 states and 424 transitions. [2023-11-29 03:18:48,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:18:48,561 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 10 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (24), 9 states have call predecessors, (24), 10 states have call successors, (24) Word has length 112 [2023-11-29 03:18:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:48,562 INFO L225 Difference]: With dead ends: 327 [2023-11-29 03:18:48,562 INFO L226 Difference]: Without dead ends: 127 [2023-11-29 03:18:48,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:18:48,564 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 90 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:48,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 266 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-29 03:18:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2023-11-29 03:18:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 97 states have (on average 1.0618556701030928) internal successors, (103), 99 states have internal predecessors, (103), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 03:18:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2023-11-29 03:18:48,595 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 112 [2023-11-29 03:18:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:48,595 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2023-11-29 03:18:48,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 10 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (24), 9 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-29 03:18:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2023-11-29 03:18:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 03:18:48,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:48,597 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:48,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 03:18:48,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 03:18:48,798 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:18:48,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash -685818489, now seen corresponding path program 1 times [2023-11-29 03:18:48,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:48,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320282467] [2023-11-29 03:18:48,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:48,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:48,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:18:48,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865464412] [2023-11-29 03:18:48,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:48,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:48,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:48,807 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:18:48,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:18:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:18:48,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:18:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-29 03:18:49,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:18:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:18:49,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:49,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320282467] [2023-11-29 03:18:49,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:18:49,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865464412] [2023-11-29 03:18:49,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865464412] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:18:49,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:18:49,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-29 03:18:49,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512921837] [2023-11-29 03:18:49,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:18:49,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:18:49,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:49,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:18:49,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:18:49,194 INFO L87 Difference]: Start difference. First operand 126 states and 151 transitions. Second operand has 15 states, 15 states have (on average 6.8) internal successors, (102), 13 states have internal predecessors, (102), 10 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (26), 11 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 03:18:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:49,294 INFO L93 Difference]: Finished difference Result 130 states and 154 transitions. [2023-11-29 03:18:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:18:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.8) internal successors, (102), 13 states have internal predecessors, (102), 10 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (26), 11 states have call predecessors, (26), 10 states have call successors, (26) Word has length 115 [2023-11-29 03:18:49,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:49,295 INFO L225 Difference]: With dead ends: 130 [2023-11-29 03:18:49,295 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:18:49,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:18:49,296 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 76 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:49,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 136 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:18:49,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:18:49,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:18:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:18:49,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2023-11-29 03:18:49,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:49,297 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:18:49,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.8) internal successors, (102), 13 states have internal predecessors, (102), 10 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (26), 11 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 03:18:49,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:18:49,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:18:49,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-29 03:18:49,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-29 03:18:49,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-29 03:18:49,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-29 03:18:49,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-29 03:18:49,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-29 03:18:49,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:49,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:49,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:18:49,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,808 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (<= |ULTIMATE.start_main_~x~0#1| 2147483647) [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 53) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-11-29 03:18:49,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-29 03:18:49,810 INFO L895 garLoopResultBuilder]: At program point L29-1(line 29) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= |ULTIMATE.start_main_~y~0#1| 1)) [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:18:49,810 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~y~0#1| 1)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_main_~b~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 1) .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 2147483648))) (and .cse0 (= |ULTIMATE.start_main_~b~0#1| 0) (<= |ULTIMATE.start_main_~r~0#1| 1) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) .cse1 .cse2 (= |ULTIMATE.start_main_~a~0#1| 0)))) [2023-11-29 03:18:49,810 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L895 garLoopResultBuilder]: At program point L55-4(line 55) the Hoare annotation is: false [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L55-5(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (and (= |ULTIMATE.start_main_~b~0#1| 1) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1)) [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,811 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L895 garLoopResultBuilder]: At program point L39-2(line 39) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~y~0#1| 1)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_main_~b~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 1) .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 2147483648))) (and .cse0 (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse1 .cse2 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L39-3(line 39) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L64-1(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L64-2(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L902 garLoopResultBuilder]: At program point L64-3(line 64) the Hoare annotation is: true [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point L64-4(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L895 garLoopResultBuilder]: At program point L48-2(line 48) the Hoare annotation is: (and (= |ULTIMATE.start_main_~b~0#1| 1) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1)) [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point L48-3(line 48) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,813 INFO L899 garLoopResultBuilder]: For program point L40-2(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L895 garLoopResultBuilder]: At program point L40-3(line 40) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (= |ULTIMATE.start_main_~y~0#1| 1)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 1))) (or (and .cse0 (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) .cse1 .cse2 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1|)) (and (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~y~0#1|) .cse0 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~a~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~q~0#1|) (<= (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807)))) [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point L40-4(lines 38 62) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L899 garLoopResultBuilder]: For program point L49-2(line 49) no Hoare annotation was computed. [2023-11-29 03:18:49,814 INFO L895 garLoopResultBuilder]: At program point L49-3(line 49) the Hoare annotation is: (and (= |ULTIMATE.start_main_~b~0#1| 1) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1)) [2023-11-29 03:18:49,815 INFO L895 garLoopResultBuilder]: At program point L49-4(line 49) the Hoare annotation is: (and (= |ULTIMATE.start_main_~b~0#1| 1) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1)) [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:18:49,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-11-29 03:18:49,816 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-29 03:18:49,816 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-29 03:18:49,819 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:49,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:18:49,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:18:49 BoogieIcfgContainer [2023-11-29 03:18:49,830 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:18:49,831 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:18:49,831 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:18:49,831 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:18:49,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:32" (3/4) ... [2023-11-29 03:18:49,833 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:18:49,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 03:18:49,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 03:18:49,840 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 03:18:49,841 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 03:18:49,841 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 03:18:49,841 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:18:49,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:18:49,937 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:18:49,937 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:18:49,938 INFO L158 Benchmark]: Toolchain (without parser) took 18061.03ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 108.4MB in the beginning and 115.1MB in the end (delta: -6.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,938 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:18:49,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.10ms. Allocated memory is still 146.8MB. Free memory was 107.8MB in the beginning and 97.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.27ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 95.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,940 INFO L158 Benchmark]: Boogie Preprocessor took 33.96ms. Allocated memory is still 146.8MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,940 INFO L158 Benchmark]: RCFGBuilder took 413.42ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 77.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,940 INFO L158 Benchmark]: TraceAbstraction took 17217.29ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 77.0MB in the beginning and 120.4MB in the end (delta: -43.4MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,941 INFO L158 Benchmark]: Witness Printer took 106.85ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 115.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:18:49,942 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.10ms. Allocated memory is still 146.8MB. Free memory was 107.8MB in the beginning and 97.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.27ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 95.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.96ms. Allocated memory is still 146.8MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.42ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 77.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17217.29ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 77.0MB in the beginning and 120.4MB in the end (delta: -43.4MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Witness Printer took 106.85ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 115.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 87 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 25, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4283 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4162 mSDsluCounter, 4398 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3050 mSDsCounter, 495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4502 IncrementalHoareTripleChecker+Invalid, 4997 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 495 mSolverCounterUnsat, 1348 mSDtfsCounter, 4502 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2380 GetRequests, 2184 SyntacticMatches, 2 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=17, InterpolantAutomatonStates: 177, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 668 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 125 PreInvPairs, 139 NumberOfFragments, 306 HoareAnnotationTreeSize, 125 FomulaSimplifications, 859 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 139 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1637 NumberOfCodeBlocks, 1637 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2280 ConstructedInterpolants, 0 QuantifiedInterpolants, 6995 SizeOfPredicates, 57 NumberOfNonLiveVariables, 3297 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 33 InterpolantComputations, 14 PerfectInterpolantSequences, 2959/3137 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((b == 1) && (0 <= x)) && (a == 1)) && (q == 0)) && (y == 1)) && (x <= 1)) && (r == 1)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((((0 <= x) && (b <= 1)) && (a == 1)) && (r == 0)) && (q == 1)) && (y == 1)) && (x <= 1)) && (0 <= (b + 2147483648))) || ((((((((0 <= x) && (b == 0)) && (r <= 1)) && (0 <= r)) && (q == 0)) && (y == 1)) && (x <= 1)) && (a == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-29 03:18:49,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce8d672d-7634-4ba6-97b2-8203af9da874/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE