./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/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_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6220e6745b3165a6fc1efc167bda264ea9d52d0f56711813aaca8387b0aa2cbd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:41:24,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:41:24,705 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:41:24,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:41:24,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:41:24,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:41:24,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:41:24,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:41:24,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:41:24,734 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:41:24,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:41:24,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:41:24,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:41:24,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:41:24,736 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:41:24,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:41:24,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:41:24,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:41:24,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:41:24,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:41:24,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:41:24,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:41:24,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:41:24,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:41:24,742 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:41:24,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:41:24,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:41:24,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:41:24,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:41:24,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:41:24,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:41:24,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:41:24,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:41:24,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:41:24,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:41:24,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:41:24,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:41:24,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:41:24,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:41:24,746 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:41:24,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:41:24,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:41:24,747 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_bde59a28-8d14-4889-98a1-c6dd5222bcdb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6220e6745b3165a6fc1efc167bda264ea9d52d0f56711813aaca8387b0aa2cbd [2023-11-29 01:41:24,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:41:24,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:41:24,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:41:24,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:41:24,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:41:24,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i [2023-11-29 01:41:27,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:41:27,934 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:41:27,934 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i [2023-11-29 01:41:27,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/data/b6d6a260a/1158303b0eea47e2b930f8f87d9820b6/FLAG41c3777c5 [2023-11-29 01:41:27,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/data/b6d6a260a/1158303b0eea47e2b930f8f87d9820b6 [2023-11-29 01:41:27,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:41:27,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:41:27,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:41:27,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:41:27,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:41:27,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:41:27" (1/1) ... [2023-11-29 01:41:27,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425aa6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:27, skipping insertion in model container [2023-11-29 01:41:27,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:41:27" (1/1) ... [2023-11-29 01:41:28,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:41:28,210 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i[915,928] [2023-11-29 01:41:28,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:41:28,433 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:41:28,444 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i[915,928] [2023-11-29 01:41:28,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:41:28,564 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:41:28,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28 WrapperNode [2023-11-29 01:41:28,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:41:28,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:41:28,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:41:28,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:41:28,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,701 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 696 [2023-11-29 01:41:28,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:41:28,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:41:28,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:41:28,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:41:28,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,799 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 01:41:28,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:41:28,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:41:28,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:41:28,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:41:28,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (1/1) ... [2023-11-29 01:41:28,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:41:28,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:28,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:41:28,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:41:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:41:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:41:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:41:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:41:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:41:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:41:29,054 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:41:29,057 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:41:30,102 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:41:30,141 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:41:30,141 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:41:30,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:41:30 BoogieIcfgContainer [2023-11-29 01:41:30,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:41:30,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:41:30,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:41:30,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:41:30,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:41:27" (1/3) ... [2023-11-29 01:41:30,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a94faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:41:30, skipping insertion in model container [2023-11-29 01:41:30,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:41:28" (2/3) ... [2023-11-29 01:41:30,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a94faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:41:30, skipping insertion in model container [2023-11-29 01:41:30,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:41:30" (3/3) ... [2023-11-29 01:41:30,150 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-0.i [2023-11-29 01:41:30,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:41:30,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:41:30,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:41:30,231 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;@2da3d09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:41:30,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:41:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 272 states, 208 states have (on average 1.6057692307692308) internal successors, (334), 209 states have internal predecessors, (334), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 01:41:30,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-11-29 01:41:30,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:30,268 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:30,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:30,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:30,274 INFO L85 PathProgramCache]: Analyzing trace with hash 324317936, now seen corresponding path program 1 times [2023-11-29 01:41:30,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:30,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247775214] [2023-11-29 01:41:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:30,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:30,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:30,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247775214] [2023-11-29 01:41:30,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:41:30,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19199749] [2023-11-29 01:41:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:30,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:30,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:30,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:30,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:41:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:31,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:41:31,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2023-11-29 01:41:31,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19199749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:31,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:41:31,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019156967] [2023-11-29 01:41:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:31,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:41:31,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:31,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:41:31,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:41:31,202 INFO L87 Difference]: Start difference. First operand has 272 states, 208 states have (on average 1.6057692307692308) internal successors, (334), 209 states have internal predecessors, (334), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2023-11-29 01:41:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:31,278 INFO L93 Difference]: Finished difference Result 541 states and 971 transitions. [2023-11-29 01:41:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:41:31,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) Word has length 425 [2023-11-29 01:41:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:31,289 INFO L225 Difference]: With dead ends: 541 [2023-11-29 01:41:31,289 INFO L226 Difference]: Without dead ends: 270 [2023-11-29 01:41:31,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:41:31,298 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:31,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:41:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-29 01:41:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-11-29 01:41:31,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 207 states have (on average 1.5845410628019323) internal successors, (328), 207 states have internal predecessors, (328), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 01:41:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 450 transitions. [2023-11-29 01:41:31,371 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 450 transitions. Word has length 425 [2023-11-29 01:41:31,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:31,372 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 450 transitions. [2023-11-29 01:41:31,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2023-11-29 01:41:31,373 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 450 transitions. [2023-11-29 01:41:31,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-11-29 01:41:31,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:31,383 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:31,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:31,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:31,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:31,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1303133698, now seen corresponding path program 1 times [2023-11-29 01:41:31,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:31,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120495062] [2023-11-29 01:41:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:31,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:31,701 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438797002] [2023-11-29 01:41:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:31,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:31,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:31,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:31,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:41:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:32,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:41:32,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:32,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:32,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:32,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:32,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120495062] [2023-11-29 01:41:32,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:32,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438797002] [2023-11-29 01:41:32,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438797002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:32,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:32,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:41:32,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057853257] [2023-11-29 01:41:32,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:32,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:32,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:32,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:32,211 INFO L87 Difference]: Start difference. First operand 270 states and 450 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:32,320 INFO L93 Difference]: Finished difference Result 703 states and 1171 transitions. [2023-11-29 01:41:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:32,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 425 [2023-11-29 01:41:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:32,327 INFO L225 Difference]: With dead ends: 703 [2023-11-29 01:41:32,327 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 01:41:32,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 423 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 01:41:32,330 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 249 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:32,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 867 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:41:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 01:41:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 431. [2023-11-29 01:41:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 353 states have (on average 1.611898016997167) internal successors, (569), 354 states have internal predecessors, (569), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:41:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 719 transitions. [2023-11-29 01:41:32,379 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 719 transitions. Word has length 425 [2023-11-29 01:41:32,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:32,380 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 719 transitions. [2023-11-29 01:41:32,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:32,381 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 719 transitions. [2023-11-29 01:41:32,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-11-29 01:41:32,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:32,390 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:32,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:41:32,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:32,591 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:32,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:32,591 INFO L85 PathProgramCache]: Analyzing trace with hash -746254144, now seen corresponding path program 1 times [2023-11-29 01:41:32,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:32,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963028718] [2023-11-29 01:41:32,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:32,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:32,707 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589116706] [2023-11-29 01:41:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:32,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:32,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:32,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:32,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:41:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:33,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:41:33,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:33,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:33,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963028718] [2023-11-29 01:41:33,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589116706] [2023-11-29 01:41:33,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589116706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:33,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:33,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:41:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202186843] [2023-11-29 01:41:33,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:33,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:33,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:33,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:33,159 INFO L87 Difference]: Start difference. First operand 431 states and 719 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:33,285 INFO L93 Difference]: Finished difference Result 1180 states and 1967 transitions. [2023-11-29 01:41:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 425 [2023-11-29 01:41:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:33,294 INFO L225 Difference]: With dead ends: 1180 [2023-11-29 01:41:33,294 INFO L226 Difference]: Without dead ends: 750 [2023-11-29 01:41:33,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 423 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 01:41:33,297 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 272 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:33,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1085 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:41:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-11-29 01:41:33,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 746. [2023-11-29 01:41:33,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 654 states have (on average 1.6269113149847094) internal successors, (1064), 657 states have internal predecessors, (1064), 87 states have call successors, (87), 4 states have call predecessors, (87), 4 states have return successors, (87), 84 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 01:41:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1238 transitions. [2023-11-29 01:41:33,361 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1238 transitions. Word has length 425 [2023-11-29 01:41:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:33,363 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1238 transitions. [2023-11-29 01:41:33,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1238 transitions. [2023-11-29 01:41:33,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-11-29 01:41:33,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:33,369 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:33,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:41:33,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:33,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:33,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash 366747196, now seen corresponding path program 1 times [2023-11-29 01:41:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:33,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992267077] [2023-11-29 01:41:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:33,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:33,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511383890] [2023-11-29 01:41:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:33,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:33,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:33,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:33,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:41:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:34,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:41:34,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:34,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:34,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:34,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992267077] [2023-11-29 01:41:34,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511383890] [2023-11-29 01:41:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511383890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:34,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:34,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:41:34,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410183899] [2023-11-29 01:41:34,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:34,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:41:34,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:34,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:41:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:41:34,079 INFO L87 Difference]: Start difference. First operand 746 states and 1238 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:34,349 INFO L93 Difference]: Finished difference Result 3128 states and 5160 transitions. [2023-11-29 01:41:34,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:41:34,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 425 [2023-11-29 01:41:34,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:34,367 INFO L225 Difference]: With dead ends: 3128 [2023-11-29 01:41:34,367 INFO L226 Difference]: Without dead ends: 2383 [2023-11-29 01:41:34,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 423 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 01:41:34,370 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 882 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:34,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 2165 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:41:34,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2023-11-29 01:41:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 1326. [2023-11-29 01:41:34,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1198 states have (on average 1.6327212020033388) internal successors, (1956), 1205 states have internal predecessors, (1956), 119 states have call successors, (119), 8 states have call predecessors, (119), 8 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2023-11-29 01:41:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 2194 transitions. [2023-11-29 01:41:34,462 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 2194 transitions. Word has length 425 [2023-11-29 01:41:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:34,463 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 2194 transitions. [2023-11-29 01:41:34,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 2194 transitions. [2023-11-29 01:41:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-11-29 01:41:34,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:34,469 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:34,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:34,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:34,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:34,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1129270908, now seen corresponding path program 1 times [2023-11-29 01:41:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268465935] [2023-11-29 01:41:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:34,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:34,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556677158] [2023-11-29 01:41:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:34,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:34,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:34,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:34,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:41:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:35,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:41:35,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:35,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:35,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:35,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268465935] [2023-11-29 01:41:35,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:35,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556677158] [2023-11-29 01:41:35,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556677158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:35,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:35,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:41:35,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578535130] [2023-11-29 01:41:35,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:35,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:41:35,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:35,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:41:35,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:41:35,273 INFO L87 Difference]: Start difference. First operand 1326 states and 2194 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:35,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:35,393 INFO L93 Difference]: Finished difference Result 2663 states and 4396 transitions. [2023-11-29 01:41:35,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:35,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 425 [2023-11-29 01:41:35,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:35,403 INFO L225 Difference]: With dead ends: 2663 [2023-11-29 01:41:35,403 INFO L226 Difference]: Without dead ends: 1338 [2023-11-29 01:41:35,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 423 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 01:41:35,406 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 215 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:35,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1019 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:41:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-11-29 01:41:35,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1070. [2023-11-29 01:41:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 976 states have (on average 1.6577868852459017) internal successors, (1618), 979 states have internal predecessors, (1618), 87 states have call successors, (87), 6 states have call predecessors, (87), 6 states have return successors, (87), 84 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 01:41:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1792 transitions. [2023-11-29 01:41:35,459 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1792 transitions. Word has length 425 [2023-11-29 01:41:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:35,460 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1792 transitions. [2023-11-29 01:41:35,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1792 transitions. [2023-11-29 01:41:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-11-29 01:41:35,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:35,466 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:35,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:41:35,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:35,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:35,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:35,668 INFO L85 PathProgramCache]: Analyzing trace with hash -503957764, now seen corresponding path program 1 times [2023-11-29 01:41:35,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:35,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528767036] [2023-11-29 01:41:35,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:35,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:35,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:35,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418496901] [2023-11-29 01:41:35,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:35,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:35,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:35,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:41:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:36,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:41:36,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1368 proven. 162 refuted. 0 times theorem prover too weak. 5790 trivial. 0 not checked. [2023-11-29 01:41:36,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-11-29 01:41:37,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528767036] [2023-11-29 01:41:37,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418496901] [2023-11-29 01:41:37,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418496901] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:41:37,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:41:37,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 01:41:37,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564829394] [2023-11-29 01:41:37,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:37,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:41:37,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:37,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:41:37,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:41:37,091 INFO L87 Difference]: Start difference. First operand 1070 states and 1792 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2023-11-29 01:41:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:37,532 INFO L93 Difference]: Finished difference Result 1715 states and 2845 transitions. [2023-11-29 01:41:37,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:41:37,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 426 [2023-11-29 01:41:37,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:37,537 INFO L225 Difference]: With dead ends: 1715 [2023-11-29 01:41:37,537 INFO L226 Difference]: Without dead ends: 646 [2023-11-29 01:41:37,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 844 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:41:37,540 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 549 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:37,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 972 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:41:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-29 01:41:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 615. [2023-11-29 01:41:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 531 states have (on average 1.6082862523540489) internal successors, (854), 532 states have internal predecessors, (854), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:41:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1004 transitions. [2023-11-29 01:41:37,567 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1004 transitions. Word has length 426 [2023-11-29 01:41:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:37,568 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 1004 transitions. [2023-11-29 01:41:37,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2023-11-29 01:41:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1004 transitions. [2023-11-29 01:41:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-11-29 01:41:37,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:37,572 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:37,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:41:37,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:37,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:37,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2097854352, now seen corresponding path program 1 times [2023-11-29 01:41:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:37,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933857739] [2023-11-29 01:41:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:37,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:37,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:37,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328763447] [2023-11-29 01:41:37,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:37,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:37,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:37,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:37,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:41:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:38,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:41:38,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1740 proven. 156 refuted. 0 times theorem prover too weak. 5424 trivial. 0 not checked. [2023-11-29 01:41:38,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 24 proven. 156 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-11-29 01:41:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933857739] [2023-11-29 01:41:39,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328763447] [2023-11-29 01:41:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328763447] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:41:39,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:41:39,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 01:41:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008678944] [2023-11-29 01:41:39,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:39,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:41:39,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:41:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:41:39,071 INFO L87 Difference]: Start difference. First operand 615 states and 1004 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-11-29 01:41:39,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:39,411 INFO L93 Difference]: Finished difference Result 1239 states and 2015 transitions. [2023-11-29 01:41:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:41:39,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 427 [2023-11-29 01:41:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:39,416 INFO L225 Difference]: With dead ends: 1239 [2023-11-29 01:41:39,417 INFO L226 Difference]: Without dead ends: 625 [2023-11-29 01:41:39,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 846 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:41:39,419 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 274 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:39,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 977 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:41:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-29 01:41:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 623. [2023-11-29 01:41:39,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 537 states have (on average 1.5791433891992552) internal successors, (848), 538 states have internal predecessors, (848), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 01:41:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 998 transitions. [2023-11-29 01:41:39,446 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 998 transitions. Word has length 427 [2023-11-29 01:41:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:39,447 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 998 transitions. [2023-11-29 01:41:39,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2023-11-29 01:41:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 998 transitions. [2023-11-29 01:41:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-11-29 01:41:39,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:39,451 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:39,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:39,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:39,651 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:39,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:39,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1763383858, now seen corresponding path program 1 times [2023-11-29 01:41:39,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:39,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574544237] [2023-11-29 01:41:39,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:39,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:39,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:39,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122519290] [2023-11-29 01:41:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:39,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:39,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:39,717 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:39,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:41:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:40,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:41:40,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:40,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:40,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:40,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574544237] [2023-11-29 01:41:40,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:40,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122519290] [2023-11-29 01:41:40,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122519290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:40,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:40,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:41:40,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361182482] [2023-11-29 01:41:40,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:40,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:41:40,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:40,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:41:40,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:41:40,475 INFO L87 Difference]: Start difference. First operand 623 states and 998 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:41,000 INFO L93 Difference]: Finished difference Result 2819 states and 4556 transitions. [2023-11-29 01:41:41,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:41:41,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 427 [2023-11-29 01:41:41,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:41,015 INFO L225 Difference]: With dead ends: 2819 [2023-11-29 01:41:41,015 INFO L226 Difference]: Without dead ends: 2197 [2023-11-29 01:41:41,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:41:41,018 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 1994 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:41,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 2581 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:41:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2023-11-29 01:41:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 1242. [2023-11-29 01:41:41,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1089 states have (on average 1.5968778696051424) internal successors, (1739), 1090 states have internal predecessors, (1739), 136 states have call successors, (136), 16 states have call predecessors, (136), 16 states have return successors, (136), 135 states have call predecessors, (136), 136 states have call successors, (136) [2023-11-29 01:41:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 2011 transitions. [2023-11-29 01:41:41,104 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 2011 transitions. Word has length 427 [2023-11-29 01:41:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:41,105 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 2011 transitions. [2023-11-29 01:41:41,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 2011 transitions. [2023-11-29 01:41:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-11-29 01:41:41,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:41,110 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:41,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:41:41,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:41,312 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:41,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1829983564, now seen corresponding path program 1 times [2023-11-29 01:41:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696680130] [2023-11-29 01:41:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:41,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:41,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819531869] [2023-11-29 01:41:41,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:41,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:41,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:41,367 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:41,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:41:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:41,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:41:41,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:41,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:41,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:41,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696680130] [2023-11-29 01:41:41,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:41,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819531869] [2023-11-29 01:41:41,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819531869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:41,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:41,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:41:41,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734551136] [2023-11-29 01:41:41,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:41,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:41:41,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:41,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:41:41,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:41:41,974 INFO L87 Difference]: Start difference. First operand 1242 states and 2011 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:42,521 INFO L93 Difference]: Finished difference Result 3453 states and 5632 transitions. [2023-11-29 01:41:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:41:42,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 427 [2023-11-29 01:41:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:42,535 INFO L225 Difference]: With dead ends: 3453 [2023-11-29 01:41:42,535 INFO L226 Difference]: Without dead ends: 2405 [2023-11-29 01:41:42,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:41:42,538 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 1149 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:42,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 2345 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:41:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2023-11-29 01:41:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2344. [2023-11-29 01:41:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2102 states have (on average 1.6008563273073264) internal successors, (3365), 2105 states have internal predecessors, (3365), 211 states have call successors, (211), 30 states have call predecessors, (211), 30 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 01:41:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 3787 transitions. [2023-11-29 01:41:42,646 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 3787 transitions. Word has length 427 [2023-11-29 01:41:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:42,647 INFO L495 AbstractCegarLoop]: Abstraction has 2344 states and 3787 transitions. [2023-11-29 01:41:42,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 3787 transitions. [2023-11-29 01:41:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-11-29 01:41:42,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:42,651 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:42,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:42,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 01:41:42,852 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:42,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:42,852 INFO L85 PathProgramCache]: Analyzing trace with hash 730414015, now seen corresponding path program 1 times [2023-11-29 01:41:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:42,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6874812] [2023-11-29 01:41:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:42,917 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:42,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [888369532] [2023-11-29 01:41:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:42,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:42,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:42,919 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:42,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:41:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:43,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:41:43,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:43,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:43,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:43,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6874812] [2023-11-29 01:41:43,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:43,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888369532] [2023-11-29 01:41:43,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888369532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:43,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:43,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:41:43,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904085194] [2023-11-29 01:41:43,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:43,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:41:43,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:43,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:41:43,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:41:43,774 INFO L87 Difference]: Start difference. First operand 2344 states and 3787 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:44,106 INFO L93 Difference]: Finished difference Result 7152 states and 11722 transitions. [2023-11-29 01:41:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:41:44,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 427 [2023-11-29 01:41:44,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:44,132 INFO L225 Difference]: With dead ends: 7152 [2023-11-29 01:41:44,132 INFO L226 Difference]: Without dead ends: 5143 [2023-11-29 01:41:44,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 424 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 01:41:44,138 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 754 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:44,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1305 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:41:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5143 states. [2023-11-29 01:41:44,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 4351. [2023-11-29 01:41:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3935 states have (on average 1.6116899618805591) internal successors, (6342), 3941 states have internal predecessors, (6342), 361 states have call successors, (361), 54 states have call predecessors, (361), 54 states have return successors, (361), 355 states have call predecessors, (361), 361 states have call successors, (361) [2023-11-29 01:41:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 7064 transitions. [2023-11-29 01:41:44,453 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 7064 transitions. Word has length 427 [2023-11-29 01:41:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:44,454 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 7064 transitions. [2023-11-29 01:41:44,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 7064 transitions. [2023-11-29 01:41:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-11-29 01:41:44,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:44,462 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:44,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:41:44,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:41:44,663 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:44,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:44,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1406395702, now seen corresponding path program 1 times [2023-11-29 01:41:44,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:44,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564680196] [2023-11-29 01:41:44,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:44,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:44,720 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:44,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750525899] [2023-11-29 01:41:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:44,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:44,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:44,721 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:44,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:41:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:45,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:41:45,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:45,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:45,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:45,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564680196] [2023-11-29 01:41:45,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:45,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750525899] [2023-11-29 01:41:45,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750525899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:45,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:45,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:41:45,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521006342] [2023-11-29 01:41:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:45,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:41:45,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:45,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:41:45,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:41:45,597 INFO L87 Difference]: Start difference. First operand 4351 states and 7064 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:46,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:46,170 INFO L93 Difference]: Finished difference Result 7529 states and 12190 transitions. [2023-11-29 01:41:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:41:46,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2023-11-29 01:41:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:46,190 INFO L225 Difference]: With dead ends: 7529 [2023-11-29 01:41:46,190 INFO L226 Difference]: Without dead ends: 4429 [2023-11-29 01:41:46,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:41:46,196 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 1249 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:46,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 2244 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:41:46,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4429 states. [2023-11-29 01:41:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4429 to 4351. [2023-11-29 01:41:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3935 states have (on average 1.6035578144853875) internal successors, (6310), 3941 states have internal predecessors, (6310), 361 states have call successors, (361), 54 states have call predecessors, (361), 54 states have return successors, (361), 355 states have call predecessors, (361), 361 states have call successors, (361) [2023-11-29 01:41:46,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 7032 transitions. [2023-11-29 01:41:46,500 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 7032 transitions. Word has length 428 [2023-11-29 01:41:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:46,500 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 7032 transitions. [2023-11-29 01:41:46,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 7032 transitions. [2023-11-29 01:41:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-11-29 01:41:46,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:46,508 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:46,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:41:46,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:41:46,709 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:46,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash -131944328, now seen corresponding path program 1 times [2023-11-29 01:41:46,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:46,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093628290] [2023-11-29 01:41:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:46,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:46,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265036836] [2023-11-29 01:41:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:46,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:46,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:46,776 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:46,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:41:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:47,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:41:47,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2023-11-29 01:41:48,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:48,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:48,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093628290] [2023-11-29 01:41:48,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:48,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265036836] [2023-11-29 01:41:48,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265036836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:48,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:48,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 01:41:48,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288946125] [2023-11-29 01:41:48,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:48,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:41:48,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:48,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:41:48,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:41:48,435 INFO L87 Difference]: Start difference. First operand 4351 states and 7032 transitions. Second operand has 14 states, 14 states have (on average 9.0) internal successors, (126), 13 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:51,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:51,639 INFO L93 Difference]: Finished difference Result 14858 states and 23919 transitions. [2023-11-29 01:41:51,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 01:41:51,640 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.0) internal successors, (126), 13 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2023-11-29 01:41:51,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:51,678 INFO L225 Difference]: With dead ends: 14858 [2023-11-29 01:41:51,678 INFO L226 Difference]: Without dead ends: 11780 [2023-11-29 01:41:51,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=1115, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 01:41:51,684 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 5444 mSDsluCounter, 5326 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5444 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:51,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5444 Valid, 5938 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 01:41:51,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11780 states. [2023-11-29 01:41:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11780 to 7301. [2023-11-29 01:41:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 6480 states have (on average 1.5791666666666666) internal successors, (10233), 6492 states have internal predecessors, (10233), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 698 states have call predecessors, (710), 710 states have call successors, (710) [2023-11-29 01:41:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 11653 transitions. [2023-11-29 01:41:52,243 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 11653 transitions. Word has length 428 [2023-11-29 01:41:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:52,244 INFO L495 AbstractCegarLoop]: Abstraction has 7301 states and 11653 transitions. [2023-11-29 01:41:52,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.0) internal successors, (126), 13 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2023-11-29 01:41:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 11653 transitions. [2023-11-29 01:41:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-11-29 01:41:52,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:52,253 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:52,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 01:41:52,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:41:52,454 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:52,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash 543600504, now seen corresponding path program 1 times [2023-11-29 01:41:52,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:52,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270774833] [2023-11-29 01:41:52,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:52,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:52,517 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:52,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343663913] [2023-11-29 01:41:52,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:52,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:52,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:52,519 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:52,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:41:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:53,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:41:53,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:53,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2388 proven. 144 refuted. 0 times theorem prover too weak. 4788 trivial. 0 not checked. [2023-11-29 01:41:53,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 36 proven. 144 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-11-29 01:41:53,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:53,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270774833] [2023-11-29 01:41:53,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:53,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343663913] [2023-11-29 01:41:53,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343663913] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:41:53,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:41:53,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2023-11-29 01:41:53,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529476545] [2023-11-29 01:41:53,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:53,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:41:53,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:53,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:41:53,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:41:53,935 INFO L87 Difference]: Start difference. First operand 7301 states and 11653 transitions. Second operand has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2023-11-29 01:41:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:55,982 INFO L93 Difference]: Finished difference Result 17357 states and 27615 transitions. [2023-11-29 01:41:55,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 01:41:55,983 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 428 [2023-11-29 01:41:55,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:56,000 INFO L225 Difference]: With dead ends: 17357 [2023-11-29 01:41:56,000 INFO L226 Difference]: Without dead ends: 10057 [2023-11-29 01:41:56,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 844 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=486, Invalid=1406, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 01:41:56,009 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 1346 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:56,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 2942 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:41:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10057 states. [2023-11-29 01:41:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10057 to 9965. [2023-11-29 01:41:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 8775 states have (on average 1.5651282051282052) internal successors, (13734), 8799 states have internal predecessors, (13734), 993 states have call successors, (993), 196 states have call predecessors, (993), 196 states have return successors, (993), 969 states have call predecessors, (993), 993 states have call successors, (993) [2023-11-29 01:41:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 15720 transitions. [2023-11-29 01:41:56,694 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 15720 transitions. Word has length 428 [2023-11-29 01:41:56,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:56,695 INFO L495 AbstractCegarLoop]: Abstraction has 9965 states and 15720 transitions. [2023-11-29 01:41:56,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.928571428571429) internal successors, (153), 14 states have internal predecessors, (153), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2023-11-29 01:41:56,695 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 15720 transitions. [2023-11-29 01:41:56,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-11-29 01:41:56,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:56,702 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:56,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:41:56,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:41:56,902 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:56,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:56,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1556548668, now seen corresponding path program 1 times [2023-11-29 01:41:56,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:56,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974593790] [2023-11-29 01:41:56,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:56,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:56,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:41:56,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492768547] [2023-11-29 01:41:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:56,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:56,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:56,966 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:56,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:41:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:57,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:41:57,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:58,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4622 proven. 129 refuted. 0 times theorem prover too weak. 2569 trivial. 0 not checked. [2023-11-29 01:41:58,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:41:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 225 proven. 132 refuted. 0 times theorem prover too weak. 6963 trivial. 0 not checked. [2023-11-29 01:41:58,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:58,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974593790] [2023-11-29 01:41:58,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:41:58,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492768547] [2023-11-29 01:41:58,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492768547] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:41:58,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:41:58,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2023-11-29 01:41:58,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042639198] [2023-11-29 01:41:58,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:41:58,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 01:41:58,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:58,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 01:41:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:41:58,901 INFO L87 Difference]: Start difference. First operand 9965 states and 15720 transitions. Second operand has 23 states, 23 states have (on average 10.0) internal successors, (230), 23 states have internal predecessors, (230), 5 states have call successors, (91), 3 states have call predecessors, (91), 7 states have return successors, (92), 5 states have call predecessors, (92), 5 states have call successors, (92) [2023-11-29 01:42:08,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:08,860 INFO L93 Difference]: Finished difference Result 63005 states and 99393 transitions. [2023-11-29 01:42:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-11-29 01:42:08,861 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 23 states have internal predecessors, (230), 5 states have call successors, (91), 3 states have call predecessors, (91), 7 states have return successors, (92), 5 states have call predecessors, (92), 5 states have call successors, (92) Word has length 429 [2023-11-29 01:42:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:08,969 INFO L225 Difference]: With dead ends: 63005 [2023-11-29 01:42:08,970 INFO L226 Difference]: Without dead ends: 55459 [2023-11-29 01:42:08,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 939 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2017, Invalid=7103, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 01:42:08,990 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 5363 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 2441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5365 SdHoareTripleChecker+Valid, 5155 SdHoareTripleChecker+Invalid, 6090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2441 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:08,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5365 Valid, 5155 Invalid, 6090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2441 Valid, 3649 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-29 01:42:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55459 states. [2023-11-29 01:42:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55459 to 14957. [2023-11-29 01:42:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14957 states, 13864 states have (on average 1.6190854010386613) internal successors, (22447), 13888 states have internal predecessors, (22447), 873 states have call successors, (873), 219 states have call predecessors, (873), 219 states have return successors, (873), 849 states have call predecessors, (873), 873 states have call successors, (873) [2023-11-29 01:42:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14957 states to 14957 states and 24193 transitions. [2023-11-29 01:42:10,585 INFO L78 Accepts]: Start accepts. Automaton has 14957 states and 24193 transitions. Word has length 429 [2023-11-29 01:42:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:10,585 INFO L495 AbstractCegarLoop]: Abstraction has 14957 states and 24193 transitions. [2023-11-29 01:42:10,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 23 states have internal predecessors, (230), 5 states have call successors, (91), 3 states have call predecessors, (91), 7 states have return successors, (92), 5 states have call predecessors, (92), 5 states have call successors, (92) [2023-11-29 01:42:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 14957 states and 24193 transitions. [2023-11-29 01:42:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-11-29 01:42:10,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:10,596 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:10,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:42:10,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:42:10,797 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:42:10,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1203460286, now seen corresponding path program 1 times [2023-11-29 01:42:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:10,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969364143] [2023-11-29 01:42:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:10,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:10,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:10,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370326520] [2023-11-29 01:42:10,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:10,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:10,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:10,857 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:10,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:42:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:11,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:42:11,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3798 proven. 27 refuted. 0 times theorem prover too weak. 3495 trivial. 0 not checked. [2023-11-29 01:42:11,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 153 proven. 27 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-11-29 01:42:11,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969364143] [2023-11-29 01:42:11,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370326520] [2023-11-29 01:42:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370326520] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:42:11,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:42:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 01:42:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522348329] [2023-11-29 01:42:11,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:11,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:42:11,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:11,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:42:11,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:42:11,899 INFO L87 Difference]: Start difference. First operand 14957 states and 24193 transitions. Second operand has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 12 states have internal predecessors, (167), 5 states have call successors, (82), 3 states have call predecessors, (82), 5 states have return successors, (82), 5 states have call predecessors, (82), 5 states have call successors, (82) [2023-11-29 01:42:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:13,172 INFO L93 Difference]: Finished difference Result 29791 states and 48185 transitions. [2023-11-29 01:42:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:42:13,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 12 states have internal predecessors, (167), 5 states have call successors, (82), 3 states have call predecessors, (82), 5 states have return successors, (82), 5 states have call predecessors, (82), 5 states have call successors, (82) Word has length 429 [2023-11-29 01:42:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:13,245 INFO L225 Difference]: With dead ends: 29791 [2023-11-29 01:42:13,245 INFO L226 Difference]: Without dead ends: 15013 [2023-11-29 01:42:13,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:42:13,257 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 959 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:13,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1106 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:42:13,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15013 states. [2023-11-29 01:42:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15013 to 14977. [2023-11-29 01:42:14,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14977 states, 13879 states have (on average 1.6176957994091794) internal successors, (22452), 13903 states have internal predecessors, (22452), 873 states have call successors, (873), 224 states have call predecessors, (873), 224 states have return successors, (873), 849 states have call predecessors, (873), 873 states have call successors, (873) [2023-11-29 01:42:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14977 states to 14977 states and 24198 transitions. [2023-11-29 01:42:14,181 INFO L78 Accepts]: Start accepts. Automaton has 14977 states and 24198 transitions. Word has length 429 [2023-11-29 01:42:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:14,182 INFO L495 AbstractCegarLoop]: Abstraction has 14977 states and 24198 transitions. [2023-11-29 01:42:14,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.916666666666666) internal successors, (167), 12 states have internal predecessors, (167), 5 states have call successors, (82), 3 states have call predecessors, (82), 5 states have return successors, (82), 5 states have call predecessors, (82), 5 states have call successors, (82) [2023-11-29 01:42:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 14977 states and 24198 transitions. [2023-11-29 01:42:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-11-29 01:42:14,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:14,193 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:14,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 01:42:14,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:42:14,393 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:42:14,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:14,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2090683132, now seen corresponding path program 1 times [2023-11-29 01:42:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:14,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561959593] [2023-11-29 01:42:14,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:14,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:14,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935406386] [2023-11-29 01:42:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:14,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:14,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:14,444 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:14,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:42:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:14,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:42:14,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3552 proven. 0 refuted. 0 times theorem prover too weak. 3768 trivial. 0 not checked. [2023-11-29 01:42:15,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:15,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:15,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561959593] [2023-11-29 01:42:15,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:15,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935406386] [2023-11-29 01:42:15,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935406386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:15,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:42:15,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:42:15,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527970291] [2023-11-29 01:42:15,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:15,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:42:15,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:42:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:42:15,711 INFO L87 Difference]: Start difference. First operand 14977 states and 24198 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-11-29 01:42:17,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:17,806 INFO L93 Difference]: Finished difference Result 42341 states and 68159 transitions. [2023-11-29 01:42:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:42:17,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 429 [2023-11-29 01:42:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:17,879 INFO L225 Difference]: With dead ends: 42341 [2023-11-29 01:42:17,880 INFO L226 Difference]: Without dead ends: 27525 [2023-11-29 01:42:17,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:42:17,896 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 766 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:17,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 1904 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:42:17,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27525 states. [2023-11-29 01:42:19,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27525 to 25505. [2023-11-29 01:42:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25505 states, 23383 states have (on average 1.5979985459521875) internal successors, (37366), 23431 states have internal predecessors, (37366), 1685 states have call successors, (1685), 436 states have call predecessors, (1685), 436 states have return successors, (1685), 1637 states have call predecessors, (1685), 1685 states have call successors, (1685) [2023-11-29 01:42:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25505 states to 25505 states and 40736 transitions. [2023-11-29 01:42:19,643 INFO L78 Accepts]: Start accepts. Automaton has 25505 states and 40736 transitions. Word has length 429 [2023-11-29 01:42:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:19,643 INFO L495 AbstractCegarLoop]: Abstraction has 25505 states and 40736 transitions. [2023-11-29 01:42:19,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-11-29 01:42:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 25505 states and 40736 transitions. [2023-11-29 01:42:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-11-29 01:42:19,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:19,656 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:19,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:42:19,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 01:42:19,857 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:42:19,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 948180666, now seen corresponding path program 1 times [2023-11-29 01:42:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:19,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716369276] [2023-11-29 01:42:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:19,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:19,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:19,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774770610] [2023-11-29 01:42:19,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:19,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:19,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:19,912 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:19,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:42:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:20,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:42:20,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4130 proven. 294 refuted. 0 times theorem prover too weak. 2896 trivial. 0 not checked. [2023-11-29 01:42:21,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 228 proven. 303 refuted. 0 times theorem prover too weak. 6789 trivial. 0 not checked. [2023-11-29 01:42:22,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:22,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716369276] [2023-11-29 01:42:22,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:22,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774770610] [2023-11-29 01:42:22,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774770610] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:42:22,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:42:22,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 01:42:22,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870668238] [2023-11-29 01:42:22,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:22,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 01:42:22,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:22,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 01:42:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:42:22,338 INFO L87 Difference]: Start difference. First operand 25505 states and 40736 transitions. Second operand has 26 states, 25 states have (on average 9.56) internal successors, (239), 24 states have internal predecessors, (239), 7 states have call successors, (97), 4 states have call predecessors, (97), 9 states have return successors, (98), 7 states have call predecessors, (98), 7 states have call successors, (98) [2023-11-29 01:42:37,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:37,190 INFO L93 Difference]: Finished difference Result 107211 states and 166250 transitions. [2023-11-29 01:42:37,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-11-29 01:42:37,190 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.56) internal successors, (239), 24 states have internal predecessors, (239), 7 states have call successors, (97), 4 states have call predecessors, (97), 9 states have return successors, (98), 7 states have call predecessors, (98), 7 states have call successors, (98) Word has length 429 [2023-11-29 01:42:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:37,328 INFO L225 Difference]: With dead ends: 107211 [2023-11-29 01:42:37,328 INFO L226 Difference]: Without dead ends: 82249 [2023-11-29 01:42:37,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 840 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2795 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2012, Invalid=6918, Unknown=0, NotChecked=0, Total=8930 [2023-11-29 01:42:37,363 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 4767 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 1336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 4463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1336 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:37,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 3520 Invalid, 4463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1336 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-29 01:42:37,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82249 states. [2023-11-29 01:42:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82249 to 51321. [2023-11-29 01:42:41,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51321 states, 47028 states have (on average 1.5893297609934507) internal successors, (74743), 47124 states have internal predecessors, (74743), 3309 states have call successors, (3309), 983 states have call predecessors, (3309), 983 states have return successors, (3309), 3213 states have call predecessors, (3309), 3309 states have call successors, (3309) [2023-11-29 01:42:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51321 states to 51321 states and 81361 transitions. [2023-11-29 01:42:41,701 INFO L78 Accepts]: Start accepts. Automaton has 51321 states and 81361 transitions. Word has length 429 [2023-11-29 01:42:41,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:41,702 INFO L495 AbstractCegarLoop]: Abstraction has 51321 states and 81361 transitions. [2023-11-29 01:42:41,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.56) internal successors, (239), 24 states have internal predecessors, (239), 7 states have call successors, (97), 4 states have call predecessors, (97), 9 states have return successors, (98), 7 states have call predecessors, (98), 7 states have call successors, (98) [2023-11-29 01:42:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 51321 states and 81361 transitions. [2023-11-29 01:42:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-11-29 01:42:41,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:41,725 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:41,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 01:42:41,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:42:41,926 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:42:41,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:41,927 INFO L85 PathProgramCache]: Analyzing trace with hash -585913253, now seen corresponding path program 1 times [2023-11-29 01:42:41,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:41,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891106171] [2023-11-29 01:42:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:41,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:41,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:41,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451022767] [2023-11-29 01:42:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:41,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:41,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:41,980 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:41,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:42:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:42,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:42:42,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:43,028 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4561 proven. 126 refuted. 0 times theorem prover too weak. 2633 trivial. 0 not checked. [2023-11-29 01:42:43,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:42:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 228 proven. 129 refuted. 0 times theorem prover too weak. 6963 trivial. 0 not checked. [2023-11-29 01:42:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891106171] [2023-11-29 01:42:43,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451022767] [2023-11-29 01:42:43,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451022767] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:42:43,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:42:43,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2023-11-29 01:42:43,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024620276] [2023-11-29 01:42:43,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:42:43,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 01:42:43,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 01:42:43,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:42:43,636 INFO L87 Difference]: Start difference. First operand 51321 states and 81361 transitions. Second operand has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 23 states have internal predecessors, (232), 5 states have call successors, (90), 3 states have call predecessors, (90), 7 states have return successors, (91), 5 states have call predecessors, (91), 5 states have call successors, (91) [2023-11-29 01:43:02,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:02,239 INFO L93 Difference]: Finished difference Result 185449 states and 290522 transitions. [2023-11-29 01:43:02,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-11-29 01:43:02,240 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 23 states have internal predecessors, (232), 5 states have call successors, (90), 3 states have call predecessors, (90), 7 states have return successors, (91), 5 states have call predecessors, (91), 5 states have call successors, (91) Word has length 430 [2023-11-29 01:43:02,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:02,424 INFO L225 Difference]: With dead ends: 185449 [2023-11-29 01:43:02,424 INFO L226 Difference]: Without dead ends: 145863 [2023-11-29 01:43:02,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 846 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2449 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1689, Invalid=5967, Unknown=0, NotChecked=0, Total=7656 [2023-11-29 01:43:02,458 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 5641 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 1830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 4790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1830 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:02,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5645 Valid, 4059 Invalid, 4790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1830 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 01:43:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145863 states. [2023-11-29 01:43:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145863 to 66821. [2023-11-29 01:43:07,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66821 states, 62478 states have (on average 1.6120394378821346) internal successors, (100717), 62574 states have internal predecessors, (100717), 3309 states have call successors, (3309), 1033 states have call predecessors, (3309), 1033 states have return successors, (3309), 3213 states have call predecessors, (3309), 3309 states have call successors, (3309) [2023-11-29 01:43:07,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66821 states to 66821 states and 107335 transitions. [2023-11-29 01:43:07,511 INFO L78 Accepts]: Start accepts. Automaton has 66821 states and 107335 transitions. Word has length 430 [2023-11-29 01:43:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:07,511 INFO L495 AbstractCegarLoop]: Abstraction has 66821 states and 107335 transitions. [2023-11-29 01:43:07,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 23 states have internal predecessors, (232), 5 states have call successors, (90), 3 states have call predecessors, (90), 7 states have return successors, (91), 5 states have call predecessors, (91), 5 states have call successors, (91) [2023-11-29 01:43:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 66821 states and 107335 transitions. [2023-11-29 01:43:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-11-29 01:43:07,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:07,531 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:07,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:43:07,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:43:07,731 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:43:07,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:07,732 INFO L85 PathProgramCache]: Analyzing trace with hash -163211427, now seen corresponding path program 1 times [2023-11-29 01:43:07,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:07,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208748574] [2023-11-29 01:43:07,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:07,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:07,784 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:07,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301035846] [2023-11-29 01:43:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:07,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:07,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:07,786 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:07,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:43:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:08,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:43:08,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4806 proven. 258 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2023-11-29 01:43:09,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 264 proven. 267 refuted. 0 times theorem prover too weak. 6789 trivial. 0 not checked. [2023-11-29 01:43:09,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208748574] [2023-11-29 01:43:09,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301035846] [2023-11-29 01:43:09,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301035846] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:09,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:09,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2023-11-29 01:43:09,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858552632] [2023-11-29 01:43:09,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:09,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-29 01:43:09,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-29 01:43:09,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:43:09,803 INFO L87 Difference]: Start difference. First operand 66821 states and 107335 transitions. Second operand has 27 states, 26 states have (on average 8.26923076923077) internal successors, (215), 25 states have internal predecessors, (215), 7 states have call successors, (99), 4 states have call predecessors, (99), 9 states have return successors, (100), 7 states have call predecessors, (100), 7 states have call successors, (100) [2023-11-29 01:43:25,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:25,547 INFO L93 Difference]: Finished difference Result 204781 states and 327020 transitions. [2023-11-29 01:43:25,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-11-29 01:43:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 8.26923076923077) internal successors, (215), 25 states have internal predecessors, (215), 7 states have call successors, (99), 4 states have call predecessors, (99), 9 states have return successors, (100), 7 states have call predecessors, (100), 7 states have call successors, (100) Word has length 430 [2023-11-29 01:43:25,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:25,724 INFO L225 Difference]: With dead ends: 204781 [2023-11-29 01:43:25,724 INFO L226 Difference]: Without dead ends: 150691 [2023-11-29 01:43:25,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 928 GetRequests, 840 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2605 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1782, Invalid=6228, Unknown=0, NotChecked=0, Total=8010 [2023-11-29 01:43:25,759 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 5906 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 1729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5930 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 4353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1729 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:25,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5930 Valid, 3500 Invalid, 4353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1729 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 01:43:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150691 states. [2023-11-29 01:43:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150691 to 72693. [2023-11-29 01:43:31,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72693 states, 67200 states have (on average 1.5936755952380952) internal successors, (107095), 67328 states have internal predecessors, (107095), 4077 states have call successors, (4077), 1415 states have call predecessors, (4077), 1415 states have return successors, (4077), 3949 states have call predecessors, (4077), 4077 states have call successors, (4077) [2023-11-29 01:43:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72693 states to 72693 states and 115249 transitions. [2023-11-29 01:43:32,189 INFO L78 Accepts]: Start accepts. Automaton has 72693 states and 115249 transitions. Word has length 430 [2023-11-29 01:43:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:32,190 INFO L495 AbstractCegarLoop]: Abstraction has 72693 states and 115249 transitions. [2023-11-29 01:43:32,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 8.26923076923077) internal successors, (215), 25 states have internal predecessors, (215), 7 states have call successors, (99), 4 states have call predecessors, (99), 9 states have return successors, (100), 7 states have call predecessors, (100), 7 states have call successors, (100) [2023-11-29 01:43:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 72693 states and 115249 transitions. [2023-11-29 01:43:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-11-29 01:43:32,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:32,210 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:32,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:43:32,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:32,411 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:43:32,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1353248793, now seen corresponding path program 1 times [2023-11-29 01:43:32,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:32,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505070806] [2023-11-29 01:43:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:32,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:32,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:43:32,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968869258] [2023-11-29 01:43:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:32,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:32,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:32,478 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:32,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:43:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:33,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:43:33,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3685 proven. 126 refuted. 0 times theorem prover too weak. 3509 trivial. 0 not checked. [2023-11-29 01:43:34,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 558 proven. 144 refuted. 0 times theorem prover too weak. 6618 trivial. 0 not checked. [2023-11-29 01:43:37,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:37,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505070806] [2023-11-29 01:43:37,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:43:37,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968869258] [2023-11-29 01:43:37,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968869258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:37,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:37,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-11-29 01:43:37,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654730646] [2023-11-29 01:43:37,801 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:37,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 01:43:37,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:37,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 01:43:37,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:43:37,804 INFO L87 Difference]: Start difference. First operand 72693 states and 115249 transitions. Second operand has 28 states, 26 states have (on average 8.423076923076923) internal successors, (219), 24 states have internal predecessors, (219), 9 states have call successors, (81), 5 states have call predecessors, (81), 11 states have return successors, (82), 9 states have call predecessors, (82), 9 states have call successors, (82) [2023-11-29 01:43:42,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:57,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:57,601 INFO L93 Difference]: Finished difference Result 216427 states and 342128 transitions. [2023-11-29 01:43:57,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 01:43:57,602 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 8.423076923076923) internal successors, (219), 24 states have internal predecessors, (219), 9 states have call successors, (81), 5 states have call predecessors, (81), 11 states have return successors, (82), 9 states have call predecessors, (82), 9 states have call successors, (82) Word has length 430 [2023-11-29 01:43:57,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:57,780 INFO L225 Difference]: With dead ends: 216427 [2023-11-29 01:43:57,780 INFO L226 Difference]: Without dead ends: 145837 [2023-11-29 01:43:57,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 835 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=954, Invalid=2352, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 01:43:57,815 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 2016 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 4045 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:57,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 4045 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [598 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-29 01:43:57,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145837 states. [2023-11-29 01:44:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145837 to 75393. [2023-11-29 01:44:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75393 states, 70055 states have (on average 1.5927771037042324) internal successors, (111582), 70183 states have internal predecessors, (111582), 3837 states have call successors, (3837), 1500 states have call predecessors, (3837), 1500 states have return successors, (3837), 3709 states have call predecessors, (3837), 3837 states have call successors, (3837) [2023-11-29 01:44:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75393 states to 75393 states and 119256 transitions. [2023-11-29 01:44:04,794 INFO L78 Accepts]: Start accepts. Automaton has 75393 states and 119256 transitions. Word has length 430 [2023-11-29 01:44:04,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:04,795 INFO L495 AbstractCegarLoop]: Abstraction has 75393 states and 119256 transitions. [2023-11-29 01:44:04,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 8.423076923076923) internal successors, (219), 24 states have internal predecessors, (219), 9 states have call successors, (81), 5 states have call predecessors, (81), 11 states have return successors, (82), 9 states have call predecessors, (82), 9 states have call successors, (82) [2023-11-29 01:44:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 75393 states and 119256 transitions. [2023-11-29 01:44:04,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-11-29 01:44:04,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:04,815 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:04,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 01:44:05,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:05,016 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:44:05,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:05,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2048232165, now seen corresponding path program 1 times [2023-11-29 01:44:05,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:05,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750339417] [2023-11-29 01:44:05,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:05,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:05,068 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:44:05,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954048551] [2023-11-29 01:44:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:05,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:05,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:05,069 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bde59a28-8d14-4889-98a1-c6dd5222bcdb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:44:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 01:44:05,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4152 proven. 570 refuted. 0 times theorem prover too weak. 2598 trivial. 0 not checked. [2023-11-29 01:44:29,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:47,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:47,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750339417] [2023-11-29 01:44:47,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:44:47,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954048551] [2023-11-29 01:44:47,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954048551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:44:47,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:44:47,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2023-11-29 01:44:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643420568] [2023-11-29 01:44:47,686 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:47,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 01:44:47,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:47,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 01:44:47,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2180, Unknown=3, NotChecked=0, Total=2652 [2023-11-29 01:44:47,689 INFO L87 Difference]: Start difference. First operand 75393 states and 119256 transitions. Second operand has 31 states, 31 states have (on average 4.903225806451613) internal successors, (152), 27 states have internal predecessors, (152), 7 states have call successors, (61), 7 states have call predecessors, (61), 9 states have return successors, (61), 7 states have call predecessors, (61), 7 states have call successors, (61) [2023-11-29 01:44:51,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:59,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:03,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:08,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:12,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:16,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:20,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:24,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:28,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:32,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:36,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:40,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:44,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:48,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:53,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:57,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:01,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:05,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:09,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:13,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:17,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:21,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:26,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:30,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:34,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:38,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:42,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:46,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:50,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:54,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:46:58,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:02,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:06,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:10,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:14,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:19,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:20,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:24,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:25,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:29,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:33,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:37,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:41,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:46,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:50,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:54,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:47:58,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:02,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:06,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:11,023 WARN L539 Checker$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 01:48:15,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:19,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:23,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:27,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:31,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:35,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:39,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:43,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:48,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:52,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:48:56,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:00,286 WARN L539 Checker$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 01:49:04,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:49:09,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:17,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:21,647 WARN L539 Checker$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 01:49:25,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:49:29,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:33,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:37,790 WARN L539 Checker$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 01:49:41,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:49:46,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:53,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:49:57,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:01,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:05,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:09,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:18,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:22,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:26,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:30,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:34,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:38,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:42,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:46,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:50,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:50:58,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:02,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:06,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:10,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:14,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:18,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:22,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:26,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:30,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:34,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:38,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:42,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:47,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:51,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:55,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:51:59,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:03,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:07,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:11,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:15,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:19,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:23,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:27,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:31,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:35,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:39,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:43,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:47,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:51,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:52:56,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:00,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:04,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:08,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:12,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:16,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:20,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:24,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:28,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:32,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:36,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:40,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:44,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:48,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:52,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:53:56,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:00,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:04,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:08,653 WARN L539 Checker$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 01:54:12,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:54:16,691 WARN L539 Checker$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 01:54:20,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:24,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:28,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:54:32,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:36,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:41,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:45,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:49,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:53,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:54:57,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:55:01,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:55:05,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:55:09,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:55:14,457 WARN L539 Checker$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 01:55:18,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:55:22,623 WARN L539 Checker$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 01:55:26,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:55:34,998 WARN L539 Checker$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 01:55:39,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 01:55:43,042 WARN L539 Checker$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 01:55:47,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]