./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.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_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/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_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/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_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/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 a367fffaabe322cc88315ee22f1c9c69606de0332ddd62ff36608ec1e5019dc8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:35:58,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:35:58,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:35:58,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:35:58,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:35:58,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:35:58,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:35:58,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:35:58,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:35:58,394 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:35:58,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:35:58,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:35:58,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:35:58,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:35:58,397 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:35:58,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:35:58,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:35:58,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:35:58,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:35:58,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:35:58,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:35:58,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:35:58,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:35:58,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:35:58,403 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:35:58,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:35:58,404 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:35:58,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:35:58,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:35:58,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:35:58,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:35:58,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:35:58,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:35:58,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:35:58,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:35:58,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:35:58,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:35:58,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:35:58,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:35:58,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:35:58,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:35:58,408 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:35:58,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:35:58,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:35:58,408 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_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a367fffaabe322cc88315ee22f1c9c69606de0332ddd62ff36608ec1e5019dc8 [2023-11-29 05:35:58,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:35:58,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:35:58,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:35:58,662 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:35:58,662 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:35:58,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c [2023-11-29 05:36:01,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:36:01,647 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:36:01,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c [2023-11-29 05:36:01,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/data/950a228ed/b4924b62c8164a1394b02907dee075d2/FLAG20b81dd4e [2023-11-29 05:36:01,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/data/950a228ed/b4924b62c8164a1394b02907dee075d2 [2023-11-29 05:36:01,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:36:01,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:36:01,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:36:01,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:36:01,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:36:01,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:01,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431ba82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01, skipping insertion in model container [2023-11-29 05:36:01,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:01,705 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:36:01,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:36:01,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:36:01,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:36:01,942 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:36:01,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01 WrapperNode [2023-11-29 05:36:01,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:36:01,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:36:01,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:36:01,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:36:01,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:01,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:01,987 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2023-11-29 05:36:01,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:36:01,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:36:01,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:36:01,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:36:02,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,016 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:36:02,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:36:02,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:36:02,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:36:02,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:36:02,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (1/1) ... [2023-11-29 05:36:02,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:36:02,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:02,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:36:02,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:36:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:36:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:36:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:36:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:36:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:36:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:36:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:36:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:36:02,182 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:36:02,185 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:36:02,893 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:36:02,919 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:36:02,919 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:36:02,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:36:02 BoogieIcfgContainer [2023-11-29 05:36:02,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:36:02,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:36:02,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:36:02,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:36:02,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:36:01" (1/3) ... [2023-11-29 05:36:02,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fcbe04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:36:02, skipping insertion in model container [2023-11-29 05:36:02,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:36:01" (2/3) ... [2023-11-29 05:36:02,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fcbe04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:36:02, skipping insertion in model container [2023-11-29 05:36:02,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:36:02" (3/3) ... [2023-11-29 05:36:02,928 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_unwindbound50.c [2023-11-29 05:36:02,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:36:02,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-29 05:36:02,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:36:03,005 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;@465d2a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:36:03,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-29 05:36:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 128 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:36:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-29 05:36:03,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:03,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-29 05:36:03,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:03,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:03,022 INFO L85 PathProgramCache]: Analyzing trace with hash 6575, now seen corresponding path program 1 times [2023-11-29 05:36:03,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:03,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188630487] [2023-11-29 05:36:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:03,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:36:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188630487] [2023-11-29 05:36:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188630487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:03,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:03,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:36:03,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713714387] [2023-11-29 05:36:03,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:03,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:36:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:03,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:36:03,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:03,242 INFO L87 Difference]: Start difference. First operand has 135 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 128 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:36:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:03,328 INFO L93 Difference]: Finished difference Result 249 states and 273 transitions. [2023-11-29 05:36:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:36:03,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-29 05:36:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:03,341 INFO L225 Difference]: With dead ends: 249 [2023-11-29 05:36:03,341 INFO L226 Difference]: Without dead ends: 122 [2023-11-29 05:36:03,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:03,348 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 113 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:03,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 115 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:36:03,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-29 05:36:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-29 05:36:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 69 states have (on average 1.7246376811594204) internal successors, (119), 116 states have internal predecessors, (119), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:03,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2023-11-29 05:36:03,394 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 2 [2023-11-29 05:36:03,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:03,394 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2023-11-29 05:36:03,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:36:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2023-11-29 05:36:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 05:36:03,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:03,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 05:36:03,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:36:03,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:03,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:03,397 INFO L85 PathProgramCache]: Analyzing trace with hash 203861, now seen corresponding path program 1 times [2023-11-29 05:36:03,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:03,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709540578] [2023-11-29 05:36:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:03,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:36:03,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:03,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709540578] [2023-11-29 05:36:03,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709540578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:03,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:03,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:36:03,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963067202] [2023-11-29 05:36:03,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:03,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:36:03,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:03,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:36:03,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:03,438 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:36:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:03,483 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2023-11-29 05:36:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:36:03,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 05:36:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:03,486 INFO L225 Difference]: With dead ends: 122 [2023-11-29 05:36:03,486 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 05:36:03,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:03,489 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 107 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:03,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:36:03,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 05:36:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-29 05:36:03,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 69 states have (on average 1.6666666666666667) internal successors, (115), 112 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 121 transitions. [2023-11-29 05:36:03,505 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 121 transitions. Word has length 3 [2023-11-29 05:36:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:03,506 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 121 transitions. [2023-11-29 05:36:03,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 05:36:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 121 transitions. [2023-11-29 05:36:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 05:36:03,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:03,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:36:03,507 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:03,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash -707474599, now seen corresponding path program 1 times [2023-11-29 05:36:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:03,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991753364] [2023-11-29 05:36:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:03,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:03,521 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965507808] [2023-11-29 05:36:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:03,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:03,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:03,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:03,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:36:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:03,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:36:03,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:36:03,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991753364] [2023-11-29 05:36:03,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965507808] [2023-11-29 05:36:03,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965507808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:03,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:03,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 05:36:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038428948] [2023-11-29 05:36:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:03,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:36:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:03,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:36:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:03,641 INFO L87 Difference]: Start difference. First operand 118 states and 121 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 05:36:03,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:03,679 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2023-11-29 05:36:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:36:03,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 05:36:03,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:03,681 INFO L225 Difference]: With dead ends: 118 [2023-11-29 05:36:03,681 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 05:36:03,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 05:36:03,683 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 101 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:03,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 111 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:36:03,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 05:36:03,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-29 05:36:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 69 states have (on average 1.6376811594202898) internal successors, (113), 110 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:03,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 119 transitions. [2023-11-29 05:36:03,696 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 119 transitions. Word has length 7 [2023-11-29 05:36:03,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:03,696 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 119 transitions. [2023-11-29 05:36:03,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 05:36:03,696 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 119 transitions. [2023-11-29 05:36:03,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 05:36:03,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:03,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:03,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:36:03,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:03,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:03,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash 150165433, now seen corresponding path program 1 times [2023-11-29 05:36:03,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:03,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61413648] [2023-11-29 05:36:03,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:03,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:03,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:03,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011438198] [2023-11-29 05:36:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:03,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:03,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:03,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:03,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:36:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:03,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:36:03,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:36:04,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:04,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:04,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61413648] [2023-11-29 05:36:04,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:04,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011438198] [2023-11-29 05:36:04,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011438198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:04,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:04,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:36:04,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75927433] [2023-11-29 05:36:04,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:04,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:36:04,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:04,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:36:04,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:04,024 INFO L87 Difference]: Start difference. First operand 116 states and 119 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:04,053 INFO L93 Difference]: Finished difference Result 116 states and 119 transitions. [2023-11-29 05:36:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:36:04,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-29 05:36:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:04,056 INFO L225 Difference]: With dead ends: 116 [2023-11-29 05:36:04,056 INFO L226 Difference]: Without dead ends: 114 [2023-11-29 05:36:04,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:04,058 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 92 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:04,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 111 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:36:04,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-29 05:36:04,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-11-29 05:36:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 69 states have (on average 1.608695652173913) internal successors, (111), 108 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2023-11-29 05:36:04,068 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 24 [2023-11-29 05:36:04,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:04,069 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2023-11-29 05:36:04,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:04,070 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2023-11-29 05:36:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 05:36:04,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:04,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:04,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:36:04,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:04,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:04,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:04,272 INFO L85 PathProgramCache]: Analyzing trace with hash 360161189, now seen corresponding path program 1 times [2023-11-29 05:36:04,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:04,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739408036] [2023-11-29 05:36:04,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:04,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:04,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:04,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872035015] [2023-11-29 05:36:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:04,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:04,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:36:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:04,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:36:04,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:36:04,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:36:04,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:04,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739408036] [2023-11-29 05:36:04,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:04,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872035015] [2023-11-29 05:36:04,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872035015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:36:04,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:36:04,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:36:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803468383] [2023-11-29 05:36:04,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:04,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:36:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:04,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:36:04,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:36:04,684 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:36:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:04,933 INFO L93 Difference]: Finished difference Result 114 states and 117 transitions. [2023-11-29 05:36:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:36:04,934 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), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 25 [2023-11-29 05:36:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:04,935 INFO L225 Difference]: With dead ends: 114 [2023-11-29 05:36:04,936 INFO L226 Difference]: Without dead ends: 112 [2023-11-29 05:36:04,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:36:04,937 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 275 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:04,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 360 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:36:04,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-29 05:36:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2023-11-29 05:36:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 106 states have internal predecessors, (109), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:04,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2023-11-29 05:36:04,948 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 25 [2023-11-29 05:36:04,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:04,948 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2023-11-29 05:36:04,948 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), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:36:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2023-11-29 05:36:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 05:36:04,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:04,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:04,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:36:05,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:05,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:05,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1777446201, now seen corresponding path program 1 times [2023-11-29 05:36:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:05,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643508492] [2023-11-29 05:36:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:05,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:05,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612574061] [2023-11-29 05:36:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:05,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:05,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:05,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:05,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:36:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:05,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:36:05,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:36:05,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:05,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:05,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643508492] [2023-11-29 05:36:05,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:05,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612574061] [2023-11-29 05:36:05,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612574061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:05,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:05,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:36:05,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862835329] [2023-11-29 05:36:05,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:05,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:36:05,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:05,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:36:05,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:36:05,269 INFO L87 Difference]: Start difference. First operand 112 states and 115 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:05,293 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2023-11-29 05:36:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:36:05,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 05:36:05,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:05,295 INFO L225 Difference]: With dead ends: 112 [2023-11-29 05:36:05,295 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 05:36:05,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:36:05,297 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 94 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:05,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 214 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:36:05,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 05:36:05,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 05:36:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 69 states have (on average 1.565217391304348) internal successors, (108), 105 states have internal predecessors, (108), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 114 transitions. [2023-11-29 05:36:05,306 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 114 transitions. Word has length 27 [2023-11-29 05:36:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:05,307 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 114 transitions. [2023-11-29 05:36:05,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 114 transitions. [2023-11-29 05:36:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 05:36:05,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:05,309 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:05,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:36:05,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 05:36:05,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:05,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash 733742688, now seen corresponding path program 1 times [2023-11-29 05:36:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:05,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197106770] [2023-11-29 05:36:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:05,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:05,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:05,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611104938] [2023-11-29 05:36:05,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:05,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:05,526 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:05,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:36:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:05,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:36:05,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:36:05,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197106770] [2023-11-29 05:36:05,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611104938] [2023-11-29 05:36:05,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611104938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:05,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:05,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:36:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007598460] [2023-11-29 05:36:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:36:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:05,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:36:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:36:05,625 INFO L87 Difference]: Start difference. First operand 111 states and 114 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:05,657 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2023-11-29 05:36:05,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:36:05,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-29 05:36:05,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:05,658 INFO L225 Difference]: With dead ends: 144 [2023-11-29 05:36:05,658 INFO L226 Difference]: Without dead ends: 115 [2023-11-29 05:36:05,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:36:05,660 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 3 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:05,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 305 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:36:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-29 05:36:05,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-11-29 05:36:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 109 states have internal predecessors, (112), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 118 transitions. [2023-11-29 05:36:05,669 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 118 transitions. Word has length 28 [2023-11-29 05:36:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:05,670 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 118 transitions. [2023-11-29 05:36:05,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:05,670 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 118 transitions. [2023-11-29 05:36:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 05:36:05,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:05,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:05,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:36:05,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:05,875 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:05,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash 752089058, now seen corresponding path program 1 times [2023-11-29 05:36:05,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:05,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632547204] [2023-11-29 05:36:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:05,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:05,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:05,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244966239] [2023-11-29 05:36:05,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:05,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:05,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:05,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:05,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:36:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:05,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:36:05,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:05,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:36:05,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:05,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:05,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632547204] [2023-11-29 05:36:05,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:05,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244966239] [2023-11-29 05:36:05,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244966239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:05,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:05,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:36:05,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847252898] [2023-11-29 05:36:05,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:05,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:36:05,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:05,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:36:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:05,959 INFO L87 Difference]: Start difference. First operand 115 states and 118 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:06,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:06,058 INFO L93 Difference]: Finished difference Result 186 states and 193 transitions. [2023-11-29 05:36:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:36:06,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-29 05:36:06,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:06,060 INFO L225 Difference]: With dead ends: 186 [2023-11-29 05:36:06,060 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 05:36:06,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:36:06,061 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 69 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:06,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 182 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:36:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 05:36:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 118. [2023-11-29 05:36:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 76 states have (on average 1.5263157894736843) internal successors, (116), 112 states have internal predecessors, (116), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:36:06,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 122 transitions. [2023-11-29 05:36:06,071 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 122 transitions. Word has length 30 [2023-11-29 05:36:06,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:06,071 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 122 transitions. [2023-11-29 05:36:06,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2023-11-29 05:36:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 05:36:06,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:06,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:06,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:36:06,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 05:36:06,279 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:36:06,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1839924398, now seen corresponding path program 1 times [2023-11-29 05:36:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731281889] [2023-11-29 05:36:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:06,285 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941161196] [2023-11-29 05:36:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:06,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:06,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:06,287 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:06,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:36:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:06,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:36:06,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:08,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:36:08,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:08,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:08,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731281889] [2023-11-29 05:36:08,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:08,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941161196] [2023-11-29 05:36:08,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941161196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:08,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:08,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:36:08,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741588021] [2023-11-29 05:36:08,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:08,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:36:08,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:08,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:36:08,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=6, Unknown=1, NotChecked=0, Total=12 [2023-11-29 05:36:08,379 INFO L87 Difference]: Start difference. First operand 118 states and 122 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:36:10,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:12,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:15,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:20,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:21,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:23,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:25,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:27,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:31,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:32,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:36,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:38,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:42,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:43,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:47,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:52,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:55,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:57,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:36:59,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:01,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:07,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:09,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:13,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:14,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:19,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:23,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:24,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:26,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:28,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:32,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:36,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:40,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:44,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:48,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:49,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:53,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:55,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:37:59,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:03,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:05,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:09,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:13,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:17,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:21,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:23,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:25,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:27,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:30,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:35,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:39,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:41,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:43,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:45,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:49,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:53,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:38:59,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:00,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:04,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:08,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:10,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:12,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:12,182 INFO L93 Difference]: Finished difference Result 186 states and 191 transitions. [2023-11-29 05:39:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:39:12,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 05:39:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:12,184 INFO L225 Difference]: With dead ends: 186 [2023-11-29 05:39:12,184 INFO L226 Difference]: Without dead ends: 185 [2023-11-29 05:39:12,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=9, Invalid=10, Unknown=1, NotChecked=0, Total=20 [2023-11-29 05:39:12,185 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 240 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 83 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 183.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 83 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:12,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 101 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 83 Unknown, 0 Unchecked, 183.8s Time] [2023-11-29 05:39:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-29 05:39:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 118. [2023-11-29 05:39:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 76 states have (on average 1.513157894736842) internal successors, (115), 112 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:39:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 121 transitions. [2023-11-29 05:39:12,192 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 121 transitions. Word has length 31 [2023-11-29 05:39:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:12,192 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 121 transitions. [2023-11-29 05:39:12,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:39:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 121 transitions. [2023-11-29 05:39:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 05:39:12,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:12,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:12,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:39:12,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:12,394 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:12,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:12,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1359176848, now seen corresponding path program 1 times [2023-11-29 05:39:12,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:12,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388953572] [2023-11-29 05:39:12,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:12,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:12,401 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:12,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185151944] [2023-11-29 05:39:12,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:12,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:12,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:12,403 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:12,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:39:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:12,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:39:12,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:39:12,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:39:12,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:12,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388953572] [2023-11-29 05:39:12,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:12,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185151944] [2023-11-29 05:39:12,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185151944] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:12,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:12,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 05:39:12,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857736935] [2023-11-29 05:39:12,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:12,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:39:12,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:12,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:39:12,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:39:12,897 INFO L87 Difference]: Start difference. First operand 118 states and 121 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:39:17,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:21,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:24,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:39:24,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:24,525 INFO L93 Difference]: Finished difference Result 213 states and 217 transitions. [2023-11-29 05:39:24,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:39:24,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 33 [2023-11-29 05:39:24,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:24,527 INFO L225 Difference]: With dead ends: 213 [2023-11-29 05:39:24,527 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 05:39:24,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:39:24,528 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 290 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:24,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 305 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2023-11-29 05:39:24,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 05:39:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 119. [2023-11-29 05:39:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 113 states have internal predecessors, (116), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:39:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2023-11-29 05:39:24,536 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 33 [2023-11-29 05:39:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:24,536 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2023-11-29 05:39:24,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:39:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2023-11-29 05:39:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 05:39:24,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:24,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:24,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:39:24,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:39:24,738 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:24,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash -498890190, now seen corresponding path program 1 times [2023-11-29 05:39:24,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:24,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285558341] [2023-11-29 05:39:24,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:24,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:24,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:24,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633248701] [2023-11-29 05:39:24,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:24,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:24,747 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:24,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:39:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:24,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:39:24,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:39:25,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:25,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:25,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285558341] [2023-11-29 05:39:25,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:25,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633248701] [2023-11-29 05:39:25,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633248701] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:39:25,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:39:25,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:39:25,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582829515] [2023-11-29 05:39:25,184 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:25,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:39:25,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:25,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:39:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:39:25,186 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:39:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:26,178 INFO L93 Difference]: Finished difference Result 205 states and 211 transitions. [2023-11-29 05:39:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:39:26,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-29 05:39:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:26,180 INFO L225 Difference]: With dead ends: 205 [2023-11-29 05:39:26,180 INFO L226 Difference]: Without dead ends: 190 [2023-11-29 05:39:26,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:39:26,181 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 386 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:26,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 244 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:39:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-29 05:39:26,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 167. [2023-11-29 05:39:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 124 states have (on average 1.5161290322580645) internal successors, (188), 160 states have internal predecessors, (188), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:39:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 196 transitions. [2023-11-29 05:39:26,194 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 196 transitions. Word has length 35 [2023-11-29 05:39:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:26,195 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 196 transitions. [2023-11-29 05:39:26,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:39:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 196 transitions. [2023-11-29 05:39:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 05:39:26,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:26,196 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:26,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:39:26,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:26,399 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:26,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:26,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1602867444, now seen corresponding path program 1 times [2023-11-29 05:39:26,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:26,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815662432] [2023-11-29 05:39:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:26,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:26,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:26,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38884609] [2023-11-29 05:39:26,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:26,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:26,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:26,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:26,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:39:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:26,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:39:26,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:26,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:39:26,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:26,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815662432] [2023-11-29 05:39:26,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38884609] [2023-11-29 05:39:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38884609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:39:26,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:39:26,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:39:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619146430] [2023-11-29 05:39:26,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:39:26,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:39:26,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:26,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:39:26,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:39:26,477 INFO L87 Difference]: Start difference. First operand 167 states and 196 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:39:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:26,608 INFO L93 Difference]: Finished difference Result 293 states and 345 transitions. [2023-11-29 05:39:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:39:26,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2023-11-29 05:39:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:26,611 INFO L225 Difference]: With dead ends: 293 [2023-11-29 05:39:26,611 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 05:39:26,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 05:39:26,612 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 61 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:26,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 145 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:39:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 05:39:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 240. [2023-11-29 05:39:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 195 states have (on average 1.4820512820512821) internal successors, (289), 231 states have internal predecessors, (289), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 301 transitions. [2023-11-29 05:39:26,632 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 301 transitions. Word has length 37 [2023-11-29 05:39:26,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:26,633 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 301 transitions. [2023-11-29 05:39:26,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:39:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 301 transitions. [2023-11-29 05:39:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:39:26,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:26,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:26,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:39:26,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:26,835 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:26,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1717976614, now seen corresponding path program 1 times [2023-11-29 05:39:26,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:26,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620118544] [2023-11-29 05:39:26,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:26,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:26,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559331646] [2023-11-29 05:39:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:26,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:26,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:26,845 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:26,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:39:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:26,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:39:26,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:27,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:27,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:39:27,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:27,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620118544] [2023-11-29 05:39:27,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:27,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559331646] [2023-11-29 05:39:27,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559331646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:39:27,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:39:27,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:39:27,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798746764] [2023-11-29 05:39:27,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:39:27,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:39:27,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:39:27,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:39:27,082 INFO L87 Difference]: Start difference. First operand 240 states and 301 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:27,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:27,300 INFO L93 Difference]: Finished difference Result 297 states and 368 transitions. [2023-11-29 05:39:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:39:27,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2023-11-29 05:39:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:27,303 INFO L225 Difference]: With dead ends: 297 [2023-11-29 05:39:27,303 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 05:39:27,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:39:27,304 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 223 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:27,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 89 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:39:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 05:39:27,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 236. [2023-11-29 05:39:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 195 states have (on average 1.4307692307692308) internal successors, (279), 227 states have internal predecessors, (279), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 291 transitions. [2023-11-29 05:39:27,322 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 291 transitions. Word has length 55 [2023-11-29 05:39:27,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:27,323 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 291 transitions. [2023-11-29 05:39:27,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 291 transitions. [2023-11-29 05:39:27,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:39:27,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:27,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:27,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:39:27,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 05:39:27,531 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:27,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1717976934, now seen corresponding path program 1 times [2023-11-29 05:39:27,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:27,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271509433] [2023-11-29 05:39:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:27,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:27,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10215903] [2023-11-29 05:39:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:27,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:27,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:27,539 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:27,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:39:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:27,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:39:27,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:27,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:27,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:39:27,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:27,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271509433] [2023-11-29 05:39:27,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:27,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10215903] [2023-11-29 05:39:27,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10215903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:39:27,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:39:27,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:39:27,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550135876] [2023-11-29 05:39:27,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:39:27,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:39:27,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:27,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:39:27,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:39:27,629 INFO L87 Difference]: Start difference. First operand 236 states and 291 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:27,790 INFO L93 Difference]: Finished difference Result 256 states and 292 transitions. [2023-11-29 05:39:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:39:27,790 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2023-11-29 05:39:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:27,792 INFO L225 Difference]: With dead ends: 256 [2023-11-29 05:39:27,792 INFO L226 Difference]: Without dead ends: 255 [2023-11-29 05:39:27,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:39:27,803 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 43 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:27,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 184 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:39:27,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-29 05:39:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 236. [2023-11-29 05:39:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 195 states have (on average 1.4205128205128206) internal successors, (277), 227 states have internal predecessors, (277), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 289 transitions. [2023-11-29 05:39:27,820 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 289 transitions. Word has length 55 [2023-11-29 05:39:27,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:27,821 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 289 transitions. [2023-11-29 05:39:27,821 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 289 transitions. [2023-11-29 05:39:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 05:39:27,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:27,822 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:27,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:39:28,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 05:39:28,023 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:28,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:28,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1717667347, now seen corresponding path program 1 times [2023-11-29 05:39:28,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:28,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494398101] [2023-11-29 05:39:28,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:28,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:28,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:28,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142802274] [2023-11-29 05:39:28,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:28,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:28,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:28,033 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:28,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:39:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:28,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:39:28,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:28,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:39:28,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:28,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494398101] [2023-11-29 05:39:28,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:28,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142802274] [2023-11-29 05:39:28,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142802274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:39:28,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:39:28,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:39:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846412959] [2023-11-29 05:39:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:39:28,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:39:28,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:39:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:39:28,169 INFO L87 Difference]: Start difference. First operand 236 states and 289 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:28,353 INFO L93 Difference]: Finished difference Result 313 states and 376 transitions. [2023-11-29 05:39:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:39:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2023-11-29 05:39:28,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:28,356 INFO L225 Difference]: With dead ends: 313 [2023-11-29 05:39:28,356 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 05:39:28,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 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 05:39:28,357 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:28,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 137 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:39:28,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 05:39:28,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 224. [2023-11-29 05:39:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 187 states have (on average 1.3850267379679144) internal successors, (259), 215 states have internal predecessors, (259), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 271 transitions. [2023-11-29 05:39:28,375 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 271 transitions. Word has length 56 [2023-11-29 05:39:28,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:28,375 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 271 transitions. [2023-11-29 05:39:28,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 271 transitions. [2023-11-29 05:39:28,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 05:39:28,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:28,377 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:28,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 05:39:28,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 05:39:28,579 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:28,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:28,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1717677277, now seen corresponding path program 1 times [2023-11-29 05:39:28,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:28,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299564193] [2023-11-29 05:39:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:28,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:28,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061756473] [2023-11-29 05:39:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:28,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:28,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:28,586 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:28,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:39:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:28,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:39:28,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:28,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:39:28,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:28,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299564193] [2023-11-29 05:39:28,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:28,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061756473] [2023-11-29 05:39:28,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061756473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:39:28,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:39:28,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:39:28,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542806743] [2023-11-29 05:39:28,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:39:28,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:39:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:28,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:39:28,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:39:28,717 INFO L87 Difference]: Start difference. First operand 224 states and 271 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:28,806 INFO L93 Difference]: Finished difference Result 224 states and 271 transitions. [2023-11-29 05:39:28,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:39:28,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2023-11-29 05:39:28,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:28,809 INFO L225 Difference]: With dead ends: 224 [2023-11-29 05:39:28,809 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 05:39:28,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:39:28,810 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 47 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:28,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 89 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:39:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 05:39:28,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-29 05:39:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 187 states have (on average 1.3315508021390374) internal successors, (249), 211 states have internal predecessors, (249), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 261 transitions. [2023-11-29 05:39:28,824 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 261 transitions. Word has length 56 [2023-11-29 05:39:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:28,824 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 261 transitions. [2023-11-29 05:39:28,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 261 transitions. [2023-11-29 05:39:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:39:28,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:28,825 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:28,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:39:29,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:39:29,026 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:29,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash -809731594, now seen corresponding path program 1 times [2023-11-29 05:39:29,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:29,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346208844] [2023-11-29 05:39:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:29,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:29,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:29,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400008768] [2023-11-29 05:39:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:29,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:29,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:29,033 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:29,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:39:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:29,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:39:29,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:29,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:39:29,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:29,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346208844] [2023-11-29 05:39:29,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:29,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400008768] [2023-11-29 05:39:29,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400008768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:39:29,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:39:29,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:39:29,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201164198] [2023-11-29 05:39:29,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:39:29,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:39:29,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:39:29,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:39:29,120 INFO L87 Difference]: Start difference. First operand 220 states and 261 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:29,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:29,172 INFO L93 Difference]: Finished difference Result 275 states and 322 transitions. [2023-11-29 05:39:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:39:29,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2023-11-29 05:39:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:29,174 INFO L225 Difference]: With dead ends: 275 [2023-11-29 05:39:29,174 INFO L226 Difference]: Without dead ends: 274 [2023-11-29 05:39:29,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:39:29,175 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 70 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:29,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 375 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:39:29,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-29 05:39:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 219. [2023-11-29 05:39:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 187 states have (on average 1.3155080213903743) internal successors, (246), 210 states have internal predecessors, (246), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 258 transitions. [2023-11-29 05:39:29,191 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 258 transitions. Word has length 61 [2023-11-29 05:39:29,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:29,191 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 258 transitions. [2023-11-29 05:39:29,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 05:39:29,191 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 258 transitions. [2023-11-29 05:39:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 05:39:29,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:29,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:29,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 05:39:29,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 05:39:29,393 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:29,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:29,393 INFO L85 PathProgramCache]: Analyzing trace with hash -762978824, now seen corresponding path program 1 times [2023-11-29 05:39:29,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:29,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127031702] [2023-11-29 05:39:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:29,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:29,400 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:29,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482115746] [2023-11-29 05:39:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:29,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:29,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:29,401 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:29,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:39:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:29,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:39:29,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:29,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:29,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:29,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127031702] [2023-11-29 05:39:29,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:29,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482115746] [2023-11-29 05:39:29,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482115746] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:29,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:29,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:39:29,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830471636] [2023-11-29 05:39:29,711 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:29,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:39:29,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:29,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:39:29,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:39:29,713 INFO L87 Difference]: Start difference. First operand 219 states and 258 transitions. Second operand has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:39:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:29,951 INFO L93 Difference]: Finished difference Result 308 states and 354 transitions. [2023-11-29 05:39:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:39:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 63 [2023-11-29 05:39:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:29,953 INFO L225 Difference]: With dead ends: 308 [2023-11-29 05:39:29,953 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 05:39:29,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:39:29,954 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 455 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:29,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 156 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:39:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 05:39:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 224. [2023-11-29 05:39:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 192 states have (on average 1.3072916666666667) internal successors, (251), 215 states have internal predecessors, (251), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 263 transitions. [2023-11-29 05:39:29,971 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 263 transitions. Word has length 63 [2023-11-29 05:39:29,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:29,971 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 263 transitions. [2023-11-29 05:39:29,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:39:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 263 transitions. [2023-11-29 05:39:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 05:39:29,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:29,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:29,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 05:39:30,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 05:39:30,173 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:30,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:30,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1277203778, now seen corresponding path program 1 times [2023-11-29 05:39:30,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:30,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808240310] [2023-11-29 05:39:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:30,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:30,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:30,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778305922] [2023-11-29 05:39:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:30,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:30,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:30,181 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:30,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:39:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:30,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:39:30,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:30,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:30,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:30,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808240310] [2023-11-29 05:39:30,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:30,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778305922] [2023-11-29 05:39:30,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778305922] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:30,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:30,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:39:30,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097798438] [2023-11-29 05:39:30,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:30,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:39:30,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:30,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:39:30,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:39:30,576 INFO L87 Difference]: Start difference. First operand 224 states and 263 transitions. Second operand has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:39:31,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:31,126 INFO L93 Difference]: Finished difference Result 411 states and 459 transitions. [2023-11-29 05:39:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:39:31,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 63 [2023-11-29 05:39:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:31,130 INFO L225 Difference]: With dead ends: 411 [2023-11-29 05:39:31,130 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 05:39:31,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=187, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:39:31,131 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 664 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:31,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 288 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:39:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 05:39:31,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 232. [2023-11-29 05:39:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 201 states have (on average 1.2985074626865671) internal successors, (261), 223 states have internal predecessors, (261), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 273 transitions. [2023-11-29 05:39:31,152 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 273 transitions. Word has length 63 [2023-11-29 05:39:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:31,152 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 273 transitions. [2023-11-29 05:39:31,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 10 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:39:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 273 transitions. [2023-11-29 05:39:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 05:39:31,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:31,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:31,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 05:39:31,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:31,354 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:31,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:31,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2117460312, now seen corresponding path program 1 times [2023-11-29 05:39:31,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:31,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046980939] [2023-11-29 05:39:31,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:31,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:31,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:31,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697159043] [2023-11-29 05:39:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:31,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:31,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:31,364 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:31,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:39:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:31,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:39:31,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:31,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:31,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:31,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046980939] [2023-11-29 05:39:31,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:31,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697159043] [2023-11-29 05:39:31,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697159043] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:31,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:31,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:39:31,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957344711] [2023-11-29 05:39:31,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:31,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:39:31,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:39:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:39:31,693 INFO L87 Difference]: Start difference. First operand 232 states and 273 transitions. Second operand has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:39:32,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:39:32,034 INFO L93 Difference]: Finished difference Result 352 states and 402 transitions. [2023-11-29 05:39:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:39:32,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 64 [2023-11-29 05:39:32,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:39:32,036 INFO L225 Difference]: With dead ends: 352 [2023-11-29 05:39:32,037 INFO L226 Difference]: Without dead ends: 350 [2023-11-29 05:39:32,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:39:32,038 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 440 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:39:32,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 176 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:39:32,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-29 05:39:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 240. [2023-11-29 05:39:32,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.2870813397129186) internal successors, (269), 231 states have internal predecessors, (269), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:39:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 281 transitions. [2023-11-29 05:39:32,057 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 281 transitions. Word has length 64 [2023-11-29 05:39:32,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:39:32,058 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 281 transitions. [2023-11-29 05:39:32,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:39:32,058 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 281 transitions. [2023-11-29 05:39:32,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 05:39:32,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:39:32,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:39:32,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 05:39:32,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:32,259 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:39:32,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:39:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash 938611534, now seen corresponding path program 1 times [2023-11-29 05:39:32,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:39:32,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120885014] [2023-11-29 05:39:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:32,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:39:32,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:39:32,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464708982] [2023-11-29 05:39:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:39:32,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:39:32,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:39:32,268 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:39:32,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 05:39:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:39:32,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:39:32,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:39:37,170 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~R~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2023-11-29 05:39:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 6 not checked. [2023-11-29 05:39:37,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:39:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:39:40,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:39:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120885014] [2023-11-29 05:39:40,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:39:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464708982] [2023-11-29 05:39:40,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464708982] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:39:40,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:39:40,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:39:40,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696610161] [2023-11-29 05:39:40,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:39:40,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:39:40,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:39:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:39:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=48, Unknown=3, NotChecked=14, Total=90 [2023-11-29 05:39:40,561 INFO L87 Difference]: Start difference. First operand 240 states and 281 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:39:59,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:03,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:08,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:13,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:14,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:18,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:20,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:22,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:26,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:30,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:34,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:40,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:41,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:45,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:48,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:50,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:54,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:55,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:40:56,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:02,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:06,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:10,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:16,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:20,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:23,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:28,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:33,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:35,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:39,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:42,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:44,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:48,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:52,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:54,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:56,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:57,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:41:59,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:03,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:05,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:09,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:13,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:17,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:21,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:25,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:30,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:35,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:38,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:42:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:42:38,436 INFO L93 Difference]: Finished difference Result 297 states and 327 transitions. [2023-11-29 05:42:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:42:38,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 64 [2023-11-29 05:42:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:42:38,442 INFO L225 Difference]: With dead ends: 297 [2023-11-29 05:42:38,442 INFO L226 Difference]: Without dead ends: 296 [2023-11-29 05:42:38,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=54, Invalid=75, Unknown=7, NotChecked=20, Total=156 [2023-11-29 05:42:38,443 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 403 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 16 mSolverCounterUnsat, 66 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 66 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 164.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:42:38,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 153 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 66 Unknown, 191 Unchecked, 164.9s Time] [2023-11-29 05:42:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-29 05:42:38,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 239. [2023-11-29 05:42:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 209 states have (on average 1.2679425837320575) internal successors, (265), 230 states have internal predecessors, (265), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:42:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 277 transitions. [2023-11-29 05:42:38,462 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 277 transitions. Word has length 64 [2023-11-29 05:42:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:42:38,462 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 277 transitions. [2023-11-29 05:42:38,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:42:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 277 transitions. [2023-11-29 05:42:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 05:42:38,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:42:38,463 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:42:38,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 05:42:38,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 05:42:38,664 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:42:38,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:42:38,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1216760314, now seen corresponding path program 1 times [2023-11-29 05:42:38,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:42:38,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133718840] [2023-11-29 05:42:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:42:38,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:42:38,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610005920] [2023-11-29 05:42:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:38,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:42:38,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:42:38,672 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:42:38,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 05:42:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:42:38,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:42:38,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:42:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:42:39,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:42:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:42:39,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:42:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133718840] [2023-11-29 05:42:39,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:42:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610005920] [2023-11-29 05:42:39,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610005920] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:42:39,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:42:39,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-11-29 05:42:39,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331895383] [2023-11-29 05:42:39,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:42:39,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:42:39,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:42:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:42:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:42:39,453 INFO L87 Difference]: Start difference. First operand 239 states and 277 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:42:40,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:42:40,252 INFO L93 Difference]: Finished difference Result 414 states and 467 transitions. [2023-11-29 05:42:40,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:42:40,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 65 [2023-11-29 05:42:40,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:42:40,254 INFO L225 Difference]: With dead ends: 414 [2023-11-29 05:42:40,254 INFO L226 Difference]: Without dead ends: 413 [2023-11-29 05:42:40,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:42:40,255 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 374 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:42:40,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 158 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:42:40,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-29 05:42:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 308. [2023-11-29 05:42:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 276 states have (on average 1.2572463768115942) internal successors, (347), 297 states have internal predecessors, (347), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:42:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 363 transitions. [2023-11-29 05:42:40,275 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 363 transitions. Word has length 65 [2023-11-29 05:42:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:42:40,275 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 363 transitions. [2023-11-29 05:42:40,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:42:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 363 transitions. [2023-11-29 05:42:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 05:42:40,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:42:40,276 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:42:40,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 05:42:40,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 05:42:40,477 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:42:40,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:42:40,477 INFO L85 PathProgramCache]: Analyzing trace with hash -934920360, now seen corresponding path program 1 times [2023-11-29 05:42:40,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:42:40,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880615032] [2023-11-29 05:42:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:40,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:42:40,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:42:40,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695431227] [2023-11-29 05:42:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:40,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:42:40,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:42:40,484 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:42:40,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 05:42:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:42:40,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:42:40,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:42:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:42:40,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:42:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:42:40,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:42:40,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880615032] [2023-11-29 05:42:40,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:42:40,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695431227] [2023-11-29 05:42:40,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695431227] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:42:40,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:42:40,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-29 05:42:40,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461986953] [2023-11-29 05:42:40,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:42:40,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:42:40,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:42:40,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:42:40,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:42:40,745 INFO L87 Difference]: Start difference. First operand 308 states and 363 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:42:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:42:40,894 INFO L93 Difference]: Finished difference Result 615 states and 698 transitions. [2023-11-29 05:42:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:42:40,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 66 [2023-11-29 05:42:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:42:40,898 INFO L225 Difference]: With dead ends: 615 [2023-11-29 05:42:40,898 INFO L226 Difference]: Without dead ends: 560 [2023-11-29 05:42:40,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:42:40,900 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 136 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:42:40,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:42:40,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-29 05:42:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 440. [2023-11-29 05:42:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 402 states have (on average 1.256218905472637) internal successors, (505), 423 states have internal predecessors, (505), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 05:42:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 527 transitions. [2023-11-29 05:42:40,930 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 527 transitions. Word has length 66 [2023-11-29 05:42:40,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:42:40,931 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 527 transitions. [2023-11-29 05:42:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:42:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 527 transitions. [2023-11-29 05:42:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 05:42:40,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:42:40,932 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:42:40,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 05:42:41,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 05:42:41,132 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:42:41,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:42:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash 62554640, now seen corresponding path program 1 times [2023-11-29 05:42:41,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:42:41,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497697493] [2023-11-29 05:42:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:41,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:42:41,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:42:41,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890872215] [2023-11-29 05:42:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:41,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:42:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:42:41,139 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:42:41,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 05:42:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:42:41,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:42:41,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:42:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:42:41,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:42:41,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:42:41,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:42:41,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497697493] [2023-11-29 05:42:41,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:42:41,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890872215] [2023-11-29 05:42:41,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890872215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:42:41,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:42:41,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 05:42:41,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101713163] [2023-11-29 05:42:41,338 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:42:41,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:42:41,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:42:41,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:42:41,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:42:41,340 INFO L87 Difference]: Start difference. First operand 440 states and 527 transitions. Second operand has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:42:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:42:41,571 INFO L93 Difference]: Finished difference Result 557 states and 661 transitions. [2023-11-29 05:42:41,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:42:41,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 66 [2023-11-29 05:42:41,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:42:41,574 INFO L225 Difference]: With dead ends: 557 [2023-11-29 05:42:41,574 INFO L226 Difference]: Without dead ends: 556 [2023-11-29 05:42:41,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:42:41,575 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 281 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:42:41,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 198 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:42:41,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-29 05:42:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 426. [2023-11-29 05:42:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 389 states have (on average 1.2467866323907455) internal successors, (485), 409 states have internal predecessors, (485), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 05:42:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 507 transitions. [2023-11-29 05:42:41,614 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 507 transitions. Word has length 66 [2023-11-29 05:42:41,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:42:41,614 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 507 transitions. [2023-11-29 05:42:41,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:42:41,614 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 507 transitions. [2023-11-29 05:42:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 05:42:41,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:42:41,615 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:42:41,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 05:42:41,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:42:41,816 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:42:41,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:42:41,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1017380388, now seen corresponding path program 1 times [2023-11-29 05:42:41,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:42:41,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014452238] [2023-11-29 05:42:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:41,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:42:41,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:42:41,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468142333] [2023-11-29 05:42:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:42:41,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:42:41,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:42:41,825 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:42:41,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:42:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:42:41,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:42:41,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:42:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:42:51,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:43:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:43:27,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:43:27,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014452238] [2023-11-29 05:43:27,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:43:27,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468142333] [2023-11-29 05:43:27,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468142333] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:43:27,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:43:27,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2023-11-29 05:43:27,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013237389] [2023-11-29 05:43:27,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:43:27,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 05:43:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:43:27,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 05:43:27,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:43:27,150 INFO L87 Difference]: Start difference. First operand 426 states and 507 transitions. Second operand has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:43:31,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:36,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:40,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:42,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:43,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:49,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:51,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:54,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:43:58,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:01,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:05,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:07,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:13,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:18,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:21,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:25,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:27,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:44:39,303 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 62 DAG size of output: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:44:57,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:00,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:02,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:04,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:07,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:12,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:13,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:15,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:17,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:22,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:24,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:26,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:28,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:31,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:33,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:38,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:40,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:42,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:44,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:47,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:49,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:45:50,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:00,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:01,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:06,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:10,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:18,996 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:46:22,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:23,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:26,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:28,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:32,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:39,181 WARN L293 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 36 DAG size of output: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:46:42,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:43,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:45,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:51,485 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 37 DAG size of output: 36 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:46:55,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:46:57,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:47:00,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:47:02,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:47:05,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:47:07,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:47:10,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:47:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:47:10,844 INFO L93 Difference]: Finished difference Result 677 states and 804 transitions. [2023-11-29 05:47:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 05:47:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 68 [2023-11-29 05:47:10,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:47:10,848 INFO L225 Difference]: With dead ends: 677 [2023-11-29 05:47:10,848 INFO L226 Difference]: Without dead ends: 653 [2023-11-29 05:47:10,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 67.1s TimeCoverageRelationStatistics Valid=370, Invalid=1187, Unknown=3, NotChecked=0, Total=1560 [2023-11-29 05:47:10,849 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1269 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 90 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 171.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 171.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:47:10,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 325 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 982 Invalid, 5 Unknown, 0 Unchecked, 171.2s Time] [2023-11-29 05:47:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-11-29 05:47:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 493. [2023-11-29 05:47:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 457 states have (on average 1.214442013129103) internal successors, (555), 475 states have internal predecessors, (555), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:47:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 579 transitions. [2023-11-29 05:47:10,882 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 579 transitions. Word has length 68 [2023-11-29 05:47:10,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:47:10,883 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 579 transitions. [2023-11-29 05:47:10,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:47:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 579 transitions. [2023-11-29 05:47:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 05:47:10,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:47:10,883 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-29 05:47:10,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 05:47:11,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:47:11,084 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:47:11,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:47:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1078761580, now seen corresponding path program 1 times [2023-11-29 05:47:11,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:47:11,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240189971] [2023-11-29 05:47:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:11,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:47:11,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:47:11,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819564719] [2023-11-29 05:47:11,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:11,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:47:11,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:47:11,091 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:47:11,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 05:47:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:47:11,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:47:11,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:47:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:47:11,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:47:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:47:11,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:47:11,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240189971] [2023-11-29 05:47:11,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:47:11,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819564719] [2023-11-29 05:47:11,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819564719] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:47:11,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:47:11,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:47:11,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931549837] [2023-11-29 05:47:11,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:47:11,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:47:11,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:47:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:47:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:47:11,302 INFO L87 Difference]: Start difference. First operand 493 states and 579 transitions. Second operand has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:47:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:47:11,589 INFO L93 Difference]: Finished difference Result 851 states and 1024 transitions. [2023-11-29 05:47:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:47:11,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 70 [2023-11-29 05:47:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:47:11,593 INFO L225 Difference]: With dead ends: 851 [2023-11-29 05:47:11,593 INFO L226 Difference]: Without dead ends: 825 [2023-11-29 05:47:11,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:47:11,594 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 233 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:47:11,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 264 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:47:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2023-11-29 05:47:11,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 745. [2023-11-29 05:47:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 710 states have (on average 1.1549295774647887) internal successors, (820), 721 states have internal predecessors, (820), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:47:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 856 transitions. [2023-11-29 05:47:11,668 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 856 transitions. Word has length 70 [2023-11-29 05:47:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:47:11,669 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 856 transitions. [2023-11-29 05:47:11,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:47:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 856 transitions. [2023-11-29 05:47:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 05:47:11,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:47:11,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:47:11,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 05:47:11,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 05:47:11,871 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:47:11,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:47:11,871 INFO L85 PathProgramCache]: Analyzing trace with hash 21425978, now seen corresponding path program 1 times [2023-11-29 05:47:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:47:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053487761] [2023-11-29 05:47:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:47:11,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:47:11,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163116659] [2023-11-29 05:47:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:11,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:47:11,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:47:11,879 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:47:11,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 05:47:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:47:11,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:47:11,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:47:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:47:11,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:47:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:47:12,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:47:12,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053487761] [2023-11-29 05:47:12,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:47:12,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163116659] [2023-11-29 05:47:12,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163116659] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:47:12,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:47:12,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 05:47:12,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431578040] [2023-11-29 05:47:12,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:47:12,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:47:12,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:47:12,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:47:12,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:47:12,091 INFO L87 Difference]: Start difference. First operand 745 states and 856 transitions. Second operand has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:47:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:47:12,336 INFO L93 Difference]: Finished difference Result 846 states and 942 transitions. [2023-11-29 05:47:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:47:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 88 [2023-11-29 05:47:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:47:12,340 INFO L225 Difference]: With dead ends: 846 [2023-11-29 05:47:12,340 INFO L226 Difference]: Without dead ends: 845 [2023-11-29 05:47:12,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:47:12,341 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 247 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:47:12,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 224 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:47:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-29 05:47:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 744. [2023-11-29 05:47:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 710 states have (on average 1.1380281690140845) internal successors, (808), 720 states have internal predecessors, (808), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:47:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 844 transitions. [2023-11-29 05:47:12,392 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 844 transitions. Word has length 88 [2023-11-29 05:47:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:47:12,393 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 844 transitions. [2023-11-29 05:47:12,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:47:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 844 transitions. [2023-11-29 05:47:12,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 05:47:12,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:47:12,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:47:12,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 05:47:12,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 05:47:12,594 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:47:12,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:47:12,595 INFO L85 PathProgramCache]: Analyzing trace with hash -486428518, now seen corresponding path program 1 times [2023-11-29 05:47:12,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:47:12,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928734482] [2023-11-29 05:47:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:12,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:47:12,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:47:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102069657] [2023-11-29 05:47:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:12,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:47:12,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:47:12,604 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:47:12,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 05:47:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:47:12,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:47:12,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:47:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:47:13,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:47:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:47:13,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:47:13,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928734482] [2023-11-29 05:47:13,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:47:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102069657] [2023-11-29 05:47:13,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102069657] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:47:13,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:47:13,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:47:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229270741] [2023-11-29 05:47:13,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:47:13,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:47:13,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:47:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:47:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:47:13,273 INFO L87 Difference]: Start difference. First operand 744 states and 844 transitions. Second operand has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 05:47:14,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:47:14,275 INFO L93 Difference]: Finished difference Result 1128 states and 1241 transitions. [2023-11-29 05:47:14,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 05:47:14,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 98 [2023-11-29 05:47:14,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:47:14,280 INFO L225 Difference]: With dead ends: 1128 [2023-11-29 05:47:14,280 INFO L226 Difference]: Without dead ends: 1127 [2023-11-29 05:47:14,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=605, Unknown=0, NotChecked=0, Total=870 [2023-11-29 05:47:14,281 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 885 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:47:14,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 202 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:47:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-29 05:47:14,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 910. [2023-11-29 05:47:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 871 states have (on average 1.1446613088404134) internal successors, (997), 881 states have internal predecessors, (997), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 05:47:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1043 transitions. [2023-11-29 05:47:14,384 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1043 transitions. Word has length 98 [2023-11-29 05:47:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:47:14,384 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1043 transitions. [2023-11-29 05:47:14,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 05:47:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1043 transitions. [2023-11-29 05:47:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 05:47:14,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:47:14,386 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:47:14,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 05:47:14,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 05:47:14,586 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:47:14,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:47:14,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1623965028, now seen corresponding path program 1 times [2023-11-29 05:47:14,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:47:14,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757507415] [2023-11-29 05:47:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:14,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:47:14,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:47:14,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004163248] [2023-11-29 05:47:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:14,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:47:14,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:47:14,597 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:47:14,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 05:47:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:47:14,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:47:14,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:47:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:47:14,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:47:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 05:47:15,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:47:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757507415] [2023-11-29 05:47:15,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:47:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004163248] [2023-11-29 05:47:15,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004163248] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:47:15,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:47:15,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:47:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034997302] [2023-11-29 05:47:15,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:47:15,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:47:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:47:15,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:47:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:47:15,019 INFO L87 Difference]: Start difference. First operand 910 states and 1043 transitions. Second operand has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 05:47:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:47:15,511 INFO L93 Difference]: Finished difference Result 1060 states and 1175 transitions. [2023-11-29 05:47:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 05:47:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 98 [2023-11-29 05:47:15,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:47:15,516 INFO L225 Difference]: With dead ends: 1060 [2023-11-29 05:47:15,516 INFO L226 Difference]: Without dead ends: 1059 [2023-11-29 05:47:15,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=178, Invalid=284, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:47:15,517 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 718 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:47:15,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 297 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:47:15,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-11-29 05:47:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 924. [2023-11-29 05:47:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 885 states have (on average 1.1355932203389831) internal successors, (1005), 895 states have internal predecessors, (1005), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 05:47:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1051 transitions. [2023-11-29 05:47:15,628 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1051 transitions. Word has length 98 [2023-11-29 05:47:15,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:47:15,629 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1051 transitions. [2023-11-29 05:47:15,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 05:47:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1051 transitions. [2023-11-29 05:47:15,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 05:47:15,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:47:15,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:47:15,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 05:47:15,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 05:47:15,831 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 05:47:15,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:47:15,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1288793478, now seen corresponding path program 1 times [2023-11-29 05:47:15,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:47:15,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727776996] [2023-11-29 05:47:15,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:15,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:47:15,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:47:15,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945352250] [2023-11-29 05:47:15,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:47:15,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:47:15,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:47:15,843 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:47:15,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a695fa-dfc1-4cb4-91a2-edc599efff2c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 05:47:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:47:15,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:47:15,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:47:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 65 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 05:47:24,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:47:25,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:47:25,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727776996] [2023-11-29 05:47:25,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:47:25,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945352250] [2023-11-29 05:47:25,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945352250] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:47:25,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:47:25,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 05:47:25,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733908390] [2023-11-29 05:47:25,368 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:47:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:47:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:47:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:47:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=132, Unknown=3, NotChecked=0, Total=182 [2023-11-29 05:47:25,370 INFO L87 Difference]: Start difference. First operand 924 states and 1051 transitions. Second operand has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 10 states have internal predecessors, (98), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 05:47:27,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:30,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:32,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:42,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:44,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:48,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:50,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:54,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:56,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:47:58,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:00,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:03,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:04,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:08,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:10,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:14,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:16,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:18,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:19,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:23,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:25,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:27,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:29,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:31,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:32,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:36,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:38,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:40,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:44,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:46,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:47,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:49,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:51,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:54,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:48:58,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:02,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:04,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:06,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:10,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:14,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:15,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:17,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:20,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:22,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:26,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:30,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:34,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:38,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:40,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:42,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:46,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:48,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:52,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:56,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:00,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:04,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:08,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:10,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:14,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:16,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:17,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:19,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:23,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:25,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:29,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:31,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:35,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:37,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:39,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:41,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:45,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:47,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:48,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:51,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:53,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:55,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:51:05,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:51:07,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:51:11,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:51:13,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]