./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/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_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/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_8740b18b-86cc-43a2-9d44-3a74d8907204/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 3f3d7c99d022d8509e68f89579042bc1fecba07028d59ece346230f0791ea7f9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:07:34,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:07:34,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 07:07:34,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:07:34,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:07:34,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:07:34,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:07:34,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:07:34,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:07:34,610 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:07:34,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:07:34,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:07:34,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:07:34,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:07:34,613 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:07:34,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:07:34,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:07:34,614 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:07:34,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:07:34,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:07:34,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:07:34,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:07:34,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:07:34,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:07:34,618 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:07:34,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:07:34,619 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:07:34,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:07:34,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:07:34,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:07:34,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:07:34,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:07:34,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:07:34,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:07:34,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:07:34,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:07:34,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:07:34,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:07:34,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:07:34,622 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:07:34,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:07:34,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:07:34,623 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_8740b18b-86cc-43a2-9d44-3a74d8907204/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f3d7c99d022d8509e68f89579042bc1fecba07028d59ece346230f0791ea7f9 [2023-11-29 07:07:34,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:07:34,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:07:34,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:07:34,864 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:07:34,864 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:07:34,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i [2023-11-29 07:07:37,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:07:37,877 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:07:37,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i [2023-11-29 07:07:37,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data/f74433188/2c455d37b5354607a5d7f827ec731c0c/FLAG521a46dbd [2023-11-29 07:07:37,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data/f74433188/2c455d37b5354607a5d7f827ec731c0c [2023-11-29 07:07:37,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:07:37,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:07:37,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:07:37,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:07:37,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:07:37,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:07:37" (1/1) ... [2023-11-29 07:07:37,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388185d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:37, skipping insertion in model container [2023-11-29 07:07:37,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:07:37" (1/1) ... [2023-11-29 07:07:37,978 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:07:38,097 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_8740b18b-86cc-43a2-9d44-3a74d8907204/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i[916,929] [2023-11-29 07:07:38,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:07:38,310 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:07:38,320 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_8740b18b-86cc-43a2-9d44-3a74d8907204/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i[916,929] [2023-11-29 07:07:38,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:07:38,451 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:07:38,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38 WrapperNode [2023-11-29 07:07:38,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:07:38,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:07:38,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:07:38,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:07:38,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,625 INFO L138 Inliner]: procedures = 26, calls = 87, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 765 [2023-11-29 07:07:38,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:07:38,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:07:38,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:07:38,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:07:38,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,756 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 07:07:38,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:07:38,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:07:38,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:07:38,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:07:38,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (1/1) ... [2023-11-29 07:07:38,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:07:38,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:38,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:07:38,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:07:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:07:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:07:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:07:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:07:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:07:38,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:07:39,021 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:07:39,024 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:07:40,149 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:07:40,207 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:07:40,207 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:07:40,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:07:40 BoogieIcfgContainer [2023-11-29 07:07:40,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:07:40,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:07:40,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:07:40,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:07:40,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:07:37" (1/3) ... [2023-11-29 07:07:40,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357e53b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:07:40, skipping insertion in model container [2023-11-29 07:07:40,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:07:38" (2/3) ... [2023-11-29 07:07:40,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357e53b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:07:40, skipping insertion in model container [2023-11-29 07:07:40,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:07:40" (3/3) ... [2023-11-29 07:07:40,216 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-43.i [2023-11-29 07:07:40,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:07:40,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:07:40,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:07:40,300 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;@41be70e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:07:40,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:07:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 225 states have (on average 1.6133333333333333) internal successors, (363), 226 states have internal predecessors, (363), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:07:40,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-11-29 07:07:40,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:40,339 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:40,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:07:40,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:40,345 INFO L85 PathProgramCache]: Analyzing trace with hash 955684414, now seen corresponding path program 1 times [2023-11-29 07:07:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:40,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608433452] [2023-11-29 07:07:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:40,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:40,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:40,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608433452] [2023-11-29 07:07:40,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 07:07:40,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798785230] [2023-11-29 07:07:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:40,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:40,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:40,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:07:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:41,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:07:41,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 10658 trivial. 0 not checked. [2023-11-29 07:07:41,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:41,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798785230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:41,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:41,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:07:41,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569330415] [2023-11-29 07:07:41,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:41,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:07:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:07:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:07:41,258 INFO L87 Difference]: Start difference. First operand has 302 states, 225 states have (on average 1.6133333333333333) internal successors, (363), 226 states have internal predecessors, (363), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:07:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:41,338 INFO L93 Difference]: Finished difference Result 601 states and 1094 transitions. [2023-11-29 07:07:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:07:41,341 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 2 states have call successors, (74) Word has length 497 [2023-11-29 07:07:41,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:41,352 INFO L225 Difference]: With dead ends: 601 [2023-11-29 07:07:41,352 INFO L226 Difference]: Without dead ends: 300 [2023-11-29 07:07:41,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 496 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 07:07:41,362 INFO L413 NwaCegarLoop]: 502 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, 502 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 07:07:41,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 502 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:07:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-29 07:07:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-11-29 07:07:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 224 states have (on average 1.59375) internal successors, (357), 224 states have internal predecessors, (357), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:07:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 505 transitions. [2023-11-29 07:07:41,441 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 505 transitions. Word has length 497 [2023-11-29 07:07:41,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:41,441 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 505 transitions. [2023-11-29 07:07:41,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:07:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 505 transitions. [2023-11-29 07:07:41,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-11-29 07:07:41,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:41,458 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:41,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:41,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 07:07:41,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:07:41,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1879191062, now seen corresponding path program 1 times [2023-11-29 07:07:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:41,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360285504] [2023-11-29 07:07:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:41,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:41,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:41,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139061772] [2023-11-29 07:07:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:41,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:41,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:41,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:41,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:07:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:42,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:07:42,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:07:42,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:42,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:42,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360285504] [2023-11-29 07:07:42,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:42,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139061772] [2023-11-29 07:07:42,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139061772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:42,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:42,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:42,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714260623] [2023-11-29 07:07:42,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:42,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:07:42,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:42,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:07:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:07:42,351 INFO L87 Difference]: Start difference. First operand 300 states and 505 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:42,516 INFO L93 Difference]: Finished difference Result 898 states and 1513 transitions. [2023-11-29 07:07:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:07:42,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 497 [2023-11-29 07:07:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:42,525 INFO L225 Difference]: With dead ends: 898 [2023-11-29 07:07:42,525 INFO L226 Difference]: Without dead ends: 599 [2023-11-29 07:07:42,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 495 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 07:07:42,528 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 460 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:42,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1348 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:07:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-29 07:07:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 379. [2023-11-29 07:07:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 303 states have (on average 1.646864686468647) internal successors, (499), 303 states have internal predecessors, (499), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:07:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 647 transitions. [2023-11-29 07:07:42,579 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 647 transitions. Word has length 497 [2023-11-29 07:07:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:42,582 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 647 transitions. [2023-11-29 07:07:42,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 647 transitions. [2023-11-29 07:07:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-11-29 07:07:42,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:42,588 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:42,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:07:42,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:42,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:07:42,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:42,790 INFO L85 PathProgramCache]: Analyzing trace with hash 663037336, now seen corresponding path program 1 times [2023-11-29 07:07:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:42,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982837990] [2023-11-29 07:07:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:42,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:42,919 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:42,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772943756] [2023-11-29 07:07:42,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:42,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:42,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:42,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:42,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:07:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:43,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:07:43,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:07:43,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:43,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:43,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982837990] [2023-11-29 07:07:43,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:43,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772943756] [2023-11-29 07:07:43,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772943756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:43,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:43,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:43,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846478556] [2023-11-29 07:07:43,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:43,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:07:43,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:43,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:07:43,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:07:43,417 INFO L87 Difference]: Start difference. First operand 379 states and 647 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:43,538 INFO L93 Difference]: Finished difference Result 1002 states and 1714 transitions. [2023-11-29 07:07:43,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:07:43,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 497 [2023-11-29 07:07:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:43,546 INFO L225 Difference]: With dead ends: 1002 [2023-11-29 07:07:43,546 INFO L226 Difference]: Without dead ends: 624 [2023-11-29 07:07:43,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 495 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 07:07:43,548 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 278 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:43,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 994 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:07:43,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-11-29 07:07:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 621. [2023-11-29 07:07:43,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 536 states have (on average 1.6735074626865671) internal successors, (897), 537 states have internal predecessors, (897), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 81 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 07:07:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1061 transitions. [2023-11-29 07:07:43,586 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1061 transitions. Word has length 497 [2023-11-29 07:07:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:43,588 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 1061 transitions. [2023-11-29 07:07:43,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1061 transitions. [2023-11-29 07:07:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-11-29 07:07:43,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:43,594 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:43,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:07:43,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:43,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:07:43,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1265182864, now seen corresponding path program 1 times [2023-11-29 07:07:43,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:43,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669520833] [2023-11-29 07:07:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:43,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745053169] [2023-11-29 07:07:43,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:43,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:43,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:43,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:43,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:07:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:44,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:07:44,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:07:44,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:44,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669520833] [2023-11-29 07:07:44,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745053169] [2023-11-29 07:07:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745053169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:44,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:44,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:44,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497044975] [2023-11-29 07:07:44,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:44,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:07:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:44,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:07:44,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:07:44,348 INFO L87 Difference]: Start difference. First operand 621 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:44,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:44,441 INFO L93 Difference]: Finished difference Result 1546 states and 2616 transitions. [2023-11-29 07:07:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:07:44,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 497 [2023-11-29 07:07:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:44,450 INFO L225 Difference]: With dead ends: 1546 [2023-11-29 07:07:44,450 INFO L226 Difference]: Without dead ends: 926 [2023-11-29 07:07:44,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 495 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 07:07:44,452 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 493 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:44,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1334 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:07:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2023-11-29 07:07:44,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 920. [2023-11-29 07:07:44,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 751 states have (on average 1.6178428761651131) internal successors, (1215), 753 states have internal predecessors, (1215), 164 states have call successors, (164), 4 states have call predecessors, (164), 4 states have return successors, (164), 162 states have call predecessors, (164), 164 states have call successors, (164) [2023-11-29 07:07:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1543 transitions. [2023-11-29 07:07:44,521 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1543 transitions. Word has length 497 [2023-11-29 07:07:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:44,522 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1543 transitions. [2023-11-29 07:07:44,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:44,522 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1543 transitions. [2023-11-29 07:07:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-11-29 07:07:44,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:44,526 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:44,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:07:44,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:44,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:07:44,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2075844274, now seen corresponding path program 1 times [2023-11-29 07:07:44,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:44,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431580567] [2023-11-29 07:07:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:44,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:44,801 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:44,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414795627] [2023-11-29 07:07:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:44,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:44,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:44,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:44,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:07:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:45,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:07:45,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:07:47,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:47,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431580567] [2023-11-29 07:07:47,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:47,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414795627] [2023-11-29 07:07:47,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414795627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:47,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:47,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:07:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615469596] [2023-11-29 07:07:47,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:47,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:07:47,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:47,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:07:47,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:07:47,343 INFO L87 Difference]: Start difference. First operand 920 states and 1543 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:07:50,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:07:54,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:07:58,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:08:03,122 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 07:08:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:03,676 INFO L93 Difference]: Finished difference Result 3395 states and 5719 transitions. [2023-11-29 07:08:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:08:03,677 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), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 497 [2023-11-29 07:08:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:03,692 INFO L225 Difference]: With dead ends: 3395 [2023-11-29 07:08:03,692 INFO L226 Difference]: Without dead ends: 2476 [2023-11-29 07:08:03,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:08:03,695 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 958 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 149 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:03,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2522 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 528 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2023-11-29 07:08:03,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2023-11-29 07:08:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 1835. [2023-11-29 07:08:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1498 states have (on average 1.6168224299065421) internal successors, (2422), 1502 states have internal predecessors, (2422), 328 states have call successors, (328), 8 states have call predecessors, (328), 8 states have return successors, (328), 324 states have call predecessors, (328), 328 states have call successors, (328) [2023-11-29 07:08:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 3078 transitions. [2023-11-29 07:08:03,878 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 3078 transitions. Word has length 497 [2023-11-29 07:08:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:03,879 INFO L495 AbstractCegarLoop]: Abstraction has 1835 states and 3078 transitions. [2023-11-29 07:08:03,879 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), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:08:03,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 3078 transitions. [2023-11-29 07:08:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-11-29 07:08:03,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:03,884 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:03,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:04,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:04,085 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:04,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:04,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1236810612, now seen corresponding path program 1 times [2023-11-29 07:08:04,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:04,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812733328] [2023-11-29 07:08:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:04,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:04,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:04,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115028532] [2023-11-29 07:08:04,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:04,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:04,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:04,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:04,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:08:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:04,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:08:04,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4353 proven. 159 refuted. 0 times theorem prover too weak. 6292 trivial. 0 not checked. [2023-11-29 07:08:05,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 60 proven. 159 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:05,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812733328] [2023-11-29 07:08:05,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115028532] [2023-11-29 07:08:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115028532] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:05,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:08:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374169087] [2023-11-29 07:08:05,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:05,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:08:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:08:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:08:05,621 INFO L87 Difference]: Start difference. First operand 1835 states and 3078 transitions. Second operand has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 3 states have call successors, (127), 2 states have call predecessors, (127), 4 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2023-11-29 07:08:06,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:06,620 INFO L93 Difference]: Finished difference Result 3756 states and 6254 transitions. [2023-11-29 07:08:06,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:08:06,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 3 states have call successors, (127), 2 states have call predecessors, (127), 4 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 497 [2023-11-29 07:08:06,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:06,636 INFO L225 Difference]: With dead ends: 3756 [2023-11-29 07:08:06,636 INFO L226 Difference]: Without dead ends: 1922 [2023-11-29 07:08:06,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 999 GetRequests, 984 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:08:06,642 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 773 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:06,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1207 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 07:08:06,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2023-11-29 07:08:06,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1897. [2023-11-29 07:08:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1532 states have (on average 1.6005221932114881) internal successors, (2452), 1537 states have internal predecessors, (2452), 348 states have call successors, (348), 16 states have call predecessors, (348), 16 states have return successors, (348), 343 states have call predecessors, (348), 348 states have call successors, (348) [2023-11-29 07:08:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 3148 transitions. [2023-11-29 07:08:06,844 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 3148 transitions. Word has length 497 [2023-11-29 07:08:06,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:06,845 INFO L495 AbstractCegarLoop]: Abstraction has 1897 states and 3148 transitions. [2023-11-29 07:08:06,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 3 states have call successors, (127), 2 states have call predecessors, (127), 4 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2023-11-29 07:08:06,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 3148 transitions. [2023-11-29 07:08:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-11-29 07:08:06,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:06,853 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:06,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:08:07,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 07:08:07,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:07,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1157587020, now seen corresponding path program 1 times [2023-11-29 07:08:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:07,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311505158] [2023-11-29 07:08:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:07,120 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:07,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359878175] [2023-11-29 07:08:07,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:07,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:07,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:07,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:07,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:08:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:07,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:08:07,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 2395 proven. 192 refuted. 0 times theorem prover too weak. 8217 trivial. 0 not checked. [2023-11-29 07:08:08,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:08,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 27 proven. 192 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:08,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:08,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311505158] [2023-11-29 07:08:08,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:08,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359878175] [2023-11-29 07:08:08,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359878175] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:08,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:08,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 07:08:08,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499094663] [2023-11-29 07:08:08,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:08,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:08:08,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:08,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:08:08,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:08:08,421 INFO L87 Difference]: Start difference. First operand 1897 states and 3148 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (138), 2 states have call predecessors, (138), 4 states have return successors, (139), 2 states have call predecessors, (139), 2 states have call successors, (139) [2023-11-29 07:08:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:09,127 INFO L93 Difference]: Finished difference Result 3157 states and 5198 transitions. [2023-11-29 07:08:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:08:09,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (138), 2 states have call predecessors, (138), 4 states have return successors, (139), 2 states have call predecessors, (139), 2 states have call successors, (139) Word has length 498 [2023-11-29 07:08:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:09,138 INFO L225 Difference]: With dead ends: 3157 [2023-11-29 07:08:09,138 INFO L226 Difference]: Without dead ends: 1291 [2023-11-29 07:08:09,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 988 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 07:08:09,142 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 911 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:09,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1069 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:08:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-11-29 07:08:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1265. [2023-11-29 07:08:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 931 states have (on average 1.5349087003222341) internal successors, (1429), 932 states have internal predecessors, (1429), 316 states have call successors, (316), 17 states have call predecessors, (316), 17 states have return successors, (316), 315 states have call predecessors, (316), 316 states have call successors, (316) [2023-11-29 07:08:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2061 transitions. [2023-11-29 07:08:09,281 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2061 transitions. Word has length 498 [2023-11-29 07:08:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:09,281 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2061 transitions. [2023-11-29 07:08:09,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (138), 2 states have call predecessors, (138), 4 states have return successors, (139), 2 states have call predecessors, (139), 2 states have call successors, (139) [2023-11-29 07:08:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2061 transitions. [2023-11-29 07:08:09,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-11-29 07:08:09,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:09,285 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:09,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:08:09,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 07:08:09,486 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:09,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:09,487 INFO L85 PathProgramCache]: Analyzing trace with hash -655002920, now seen corresponding path program 1 times [2023-11-29 07:08:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:09,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067522223] [2023-11-29 07:08:09,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:09,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:09,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:09,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372714574] [2023-11-29 07:08:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:09,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:09,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:09,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:09,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:08:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:09,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:08:09,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5235 proven. 132 refuted. 0 times theorem prover too weak. 5437 trivial. 0 not checked. [2023-11-29 07:08:10,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 87 proven. 132 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067522223] [2023-11-29 07:08:10,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372714574] [2023-11-29 07:08:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372714574] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:10,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:10,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 07:08:10,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666083963] [2023-11-29 07:08:10,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:10,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:08:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:08:10,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:08:10,610 INFO L87 Difference]: Start difference. First operand 1265 states and 2061 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 3 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) [2023-11-29 07:08:11,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:11,635 INFO L93 Difference]: Finished difference Result 2535 states and 4104 transitions. [2023-11-29 07:08:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:08:11,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 3 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) Word has length 500 [2023-11-29 07:08:11,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:11,646 INFO L225 Difference]: With dead ends: 2535 [2023-11-29 07:08:11,646 INFO L226 Difference]: Without dead ends: 1305 [2023-11-29 07:08:11,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:08:11,650 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 643 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:11,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1085 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:08:11,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2023-11-29 07:08:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1033. [2023-11-29 07:08:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 774 states have (on average 1.545219638242894) internal successors, (1196), 776 states have internal predecessors, (1196), 242 states have call successors, (242), 16 states have call predecessors, (242), 16 states have return successors, (242), 240 states have call predecessors, (242), 242 states have call successors, (242) [2023-11-29 07:08:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1680 transitions. [2023-11-29 07:08:11,742 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1680 transitions. Word has length 500 [2023-11-29 07:08:11,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:11,743 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1680 transitions. [2023-11-29 07:08:11,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 3 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) [2023-11-29 07:08:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1680 transitions. [2023-11-29 07:08:11,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-11-29 07:08:11,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:11,747 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:11,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:08:11,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:11,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:11,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:11,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2078993632, now seen corresponding path program 1 times [2023-11-29 07:08:11,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377310356] [2023-11-29 07:08:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:12,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:12,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068170965] [2023-11-29 07:08:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:12,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:12,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:12,008 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:12,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:08:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:12,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:08:12,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4545 proven. 63 refuted. 0 times theorem prover too weak. 6196 trivial. 0 not checked. [2023-11-29 07:08:12,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 156 proven. 63 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:12,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377310356] [2023-11-29 07:08:12,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:12,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068170965] [2023-11-29 07:08:12,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068170965] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:12,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:12,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 07:08:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138297314] [2023-11-29 07:08:12,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:12,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:08:12,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:12,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:08:12,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:08:12,966 INFO L87 Difference]: Start difference. First operand 1033 states and 1680 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-29 07:08:13,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:13,829 INFO L93 Difference]: Finished difference Result 2069 states and 3341 transitions. [2023-11-29 07:08:13,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:08:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 500 [2023-11-29 07:08:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:13,838 INFO L225 Difference]: With dead ends: 2069 [2023-11-29 07:08:13,839 INFO L226 Difference]: Without dead ends: 1071 [2023-11-29 07:08:13,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 992 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 07:08:13,842 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 915 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:13,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 1089 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:08:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-11-29 07:08:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1045. [2023-11-29 07:08:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 783 states have (on average 1.5338441890166028) internal successors, (1201), 785 states have internal predecessors, (1201), 242 states have call successors, (242), 19 states have call predecessors, (242), 19 states have return successors, (242), 240 states have call predecessors, (242), 242 states have call successors, (242) [2023-11-29 07:08:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1685 transitions. [2023-11-29 07:08:13,965 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1685 transitions. Word has length 500 [2023-11-29 07:08:13,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:13,966 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1685 transitions. [2023-11-29 07:08:13,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-29 07:08:13,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1685 transitions. [2023-11-29 07:08:13,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-11-29 07:08:13,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:13,972 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:13,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:08:14,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:14,173 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:14,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1967827170, now seen corresponding path program 1 times [2023-11-29 07:08:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764664827] [2023-11-29 07:08:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:14,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:14,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:14,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120860842] [2023-11-29 07:08:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:14,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:14,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:14,233 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:14,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:08:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:14,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:08:14,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5343 proven. 126 refuted. 0 times theorem prover too weak. 5335 trivial. 0 not checked. [2023-11-29 07:08:15,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 93 proven. 126 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764664827] [2023-11-29 07:08:15,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120860842] [2023-11-29 07:08:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120860842] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:15,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:15,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:08:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413053210] [2023-11-29 07:08:15,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:15,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:08:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:15,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:08:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:08:15,347 INFO L87 Difference]: Start difference. First operand 1045 states and 1685 transitions. Second operand has 10 states, 10 states have (on average 19.4) internal successors, (194), 10 states have internal predecessors, (194), 3 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2023-11-29 07:08:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:16,628 INFO L93 Difference]: Finished difference Result 2117 states and 3391 transitions. [2023-11-29 07:08:16,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:08:16,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.4) internal successors, (194), 10 states have internal predecessors, (194), 3 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 500 [2023-11-29 07:08:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:16,634 INFO L225 Difference]: With dead ends: 2117 [2023-11-29 07:08:16,634 INFO L226 Difference]: Without dead ends: 1107 [2023-11-29 07:08:16,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 990 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:08:16,637 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 349 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:16,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1831 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 07:08:16,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-11-29 07:08:16,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1065. [2023-11-29 07:08:16,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 800 states have (on average 1.51875) internal successors, (1215), 802 states have internal predecessors, (1215), 242 states have call successors, (242), 22 states have call predecessors, (242), 22 states have return successors, (242), 240 states have call predecessors, (242), 242 states have call successors, (242) [2023-11-29 07:08:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1699 transitions. [2023-11-29 07:08:16,738 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1699 transitions. Word has length 500 [2023-11-29 07:08:16,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:16,739 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1699 transitions. [2023-11-29 07:08:16,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.4) internal successors, (194), 10 states have internal predecessors, (194), 3 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2023-11-29 07:08:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1699 transitions. [2023-11-29 07:08:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-11-29 07:08:16,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:16,744 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:16,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 07:08:16,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:16,945 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:16,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:16,946 INFO L85 PathProgramCache]: Analyzing trace with hash -483587072, now seen corresponding path program 1 times [2023-11-29 07:08:16,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:16,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997566179] [2023-11-29 07:08:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:16,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:17,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428075458] [2023-11-29 07:08:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:17,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:17,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:17,004 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:17,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:08:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:17,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:08:17,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5235 proven. 132 refuted. 0 times theorem prover too weak. 5437 trivial. 0 not checked. [2023-11-29 07:08:17,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 87 proven. 132 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:18,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997566179] [2023-11-29 07:08:18,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428075458] [2023-11-29 07:08:18,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428075458] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:18,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:18,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:08:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031913959] [2023-11-29 07:08:18,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:18,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:08:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:08:18,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:08:18,028 INFO L87 Difference]: Start difference. First operand 1065 states and 1699 transitions. Second operand has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 3 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) [2023-11-29 07:08:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:19,256 INFO L93 Difference]: Finished difference Result 2369 states and 3757 transitions. [2023-11-29 07:08:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:08:19,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 3 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) Word has length 501 [2023-11-29 07:08:19,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:19,264 INFO L225 Difference]: With dead ends: 2369 [2023-11-29 07:08:19,264 INFO L226 Difference]: Without dead ends: 1339 [2023-11-29 07:08:19,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 994 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:08:19,267 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 760 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:19,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1598 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:08:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2023-11-29 07:08:19,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 960. [2023-11-29 07:08:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 717 states have (on average 1.507670850767085) internal successors, (1081), 718 states have internal predecessors, (1081), 222 states have call successors, (222), 20 states have call predecessors, (222), 20 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2023-11-29 07:08:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1525 transitions. [2023-11-29 07:08:19,372 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1525 transitions. Word has length 501 [2023-11-29 07:08:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:19,373 INFO L495 AbstractCegarLoop]: Abstraction has 960 states and 1525 transitions. [2023-11-29 07:08:19,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 3 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 3 states have call predecessors, (119), 3 states have call successors, (119) [2023-11-29 07:08:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1525 transitions. [2023-11-29 07:08:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-11-29 07:08:19,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:19,377 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:19,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:08:19,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:19,577 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:19,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash -499105790, now seen corresponding path program 1 times [2023-11-29 07:08:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096725502] [2023-11-29 07:08:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:19,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:19,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211172333] [2023-11-29 07:08:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:19,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:19,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:19,641 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:19,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 07:08:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:20,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:08:20,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4285 proven. 57 refuted. 0 times theorem prover too weak. 6462 trivial. 0 not checked. [2023-11-29 07:08:20,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 162 proven. 57 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:20,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:20,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096725502] [2023-11-29 07:08:20,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:20,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211172333] [2023-11-29 07:08:20,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211172333] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:20,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:20,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-11-29 07:08:20,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254261512] [2023-11-29 07:08:20,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:20,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:08:20,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:20,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:08:20,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:08:20,454 INFO L87 Difference]: Start difference. First operand 960 states and 1525 transitions. Second operand has 8 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 2 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2023-11-29 07:08:21,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:21,113 INFO L93 Difference]: Finished difference Result 1917 states and 3036 transitions. [2023-11-29 07:08:21,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:08:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 2 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 501 [2023-11-29 07:08:21,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:21,119 INFO L225 Difference]: With dead ends: 1917 [2023-11-29 07:08:21,119 INFO L226 Difference]: Without dead ends: 994 [2023-11-29 07:08:21,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 992 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:08:21,121 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 777 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:21,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1441 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:08:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-29 07:08:21,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 966. [2023-11-29 07:08:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 720 states have (on average 1.488888888888889) internal successors, (1072), 721 states have internal predecessors, (1072), 222 states have call successors, (222), 23 states have call predecessors, (222), 23 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2023-11-29 07:08:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1516 transitions. [2023-11-29 07:08:21,223 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1516 transitions. Word has length 501 [2023-11-29 07:08:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:21,224 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1516 transitions. [2023-11-29 07:08:21,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 8 states have internal predecessors, (143), 2 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2023-11-29 07:08:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1516 transitions. [2023-11-29 07:08:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2023-11-29 07:08:21,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:21,230 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:21,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:21,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:21,430 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:21,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash 365573821, now seen corresponding path program 1 times [2023-11-29 07:08:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:21,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485081825] [2023-11-29 07:08:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:21,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:21,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:21,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800373328] [2023-11-29 07:08:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:21,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:21,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:21,499 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:21,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 07:08:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:21,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:08:21,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4825 proven. 147 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-11-29 07:08:22,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 72 proven. 147 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:22,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:22,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485081825] [2023-11-29 07:08:22,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:22,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800373328] [2023-11-29 07:08:22,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800373328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:22,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:22,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:08:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361473511] [2023-11-29 07:08:22,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:22,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:08:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:22,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:08:22,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:08:22,758 INFO L87 Difference]: Start difference. First operand 966 states and 1516 transitions. Second operand has 10 states, 10 states have (on average 22.9) internal successors, (229), 10 states have internal predecessors, (229), 3 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2023-11-29 07:08:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:23,911 INFO L93 Difference]: Finished difference Result 1775 states and 2763 transitions. [2023-11-29 07:08:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:08:23,912 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.9) internal successors, (229), 10 states have internal predecessors, (229), 3 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) Word has length 502 [2023-11-29 07:08:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:23,917 INFO L225 Difference]: With dead ends: 1775 [2023-11-29 07:08:23,917 INFO L226 Difference]: Without dead ends: 954 [2023-11-29 07:08:23,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 994 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:08:23,919 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 289 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:23,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1536 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:08:23,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-11-29 07:08:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 926. [2023-11-29 07:08:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 677 states have (on average 1.4401772525849335) internal successors, (975), 678 states have internal predecessors, (975), 222 states have call successors, (222), 26 states have call predecessors, (222), 26 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2023-11-29 07:08:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1419 transitions. [2023-11-29 07:08:24,021 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1419 transitions. Word has length 502 [2023-11-29 07:08:24,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:24,022 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1419 transitions. [2023-11-29 07:08:24,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.9) internal successors, (229), 10 states have internal predecessors, (229), 3 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (124), 3 states have call predecessors, (124), 3 states have call successors, (124) [2023-11-29 07:08:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1419 transitions. [2023-11-29 07:08:24,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-11-29 07:08:24,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:24,027 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:24,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 07:08:24,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:24,228 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:24,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 397212986, now seen corresponding path program 1 times [2023-11-29 07:08:24,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969068855] [2023-11-29 07:08:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:24,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:24,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579760178] [2023-11-29 07:08:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:24,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:24,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:24,290 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:24,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 07:08:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:24,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:08:24,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:08:24,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:24,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:24,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969068855] [2023-11-29 07:08:24,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:24,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579760178] [2023-11-29 07:08:24,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579760178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:24,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:24,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:08:24,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530096317] [2023-11-29 07:08:24,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:24,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:08:24,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:08:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:08:24,727 INFO L87 Difference]: Start difference. First operand 926 states and 1419 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:08:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:24,865 INFO L93 Difference]: Finished difference Result 1775 states and 2741 transitions. [2023-11-29 07:08:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:08:24,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 503 [2023-11-29 07:08:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:24,872 INFO L225 Difference]: With dead ends: 1775 [2023-11-29 07:08:24,872 INFO L226 Difference]: Without dead ends: 998 [2023-11-29 07:08:24,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 501 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 07:08:24,875 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 445 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:24,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 932 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:08:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2023-11-29 07:08:24,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 918. [2023-11-29 07:08:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 669 states have (on average 1.4304932735426008) internal successors, (957), 670 states have internal predecessors, (957), 222 states have call successors, (222), 26 states have call predecessors, (222), 26 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2023-11-29 07:08:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1401 transitions. [2023-11-29 07:08:25,001 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1401 transitions. Word has length 503 [2023-11-29 07:08:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:25,002 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1401 transitions. [2023-11-29 07:08:25,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:08:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1401 transitions. [2023-11-29 07:08:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-11-29 07:08:25,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:25,007 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:25,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 07:08:25,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:25,208 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:25,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash -85906505, now seen corresponding path program 1 times [2023-11-29 07:08:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:25,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532475861] [2023-11-29 07:08:25,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:25,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:25,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:25,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843841716] [2023-11-29 07:08:25,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:25,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:25,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:25,256 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:25,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 07:08:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:25,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:08:25,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:08:26,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:26,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:26,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532475861] [2023-11-29 07:08:26,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:26,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843841716] [2023-11-29 07:08:26,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843841716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:26,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:26,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:08:26,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889159421] [2023-11-29 07:08:26,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:26,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:08:26,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:08:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:08:26,975 INFO L87 Difference]: Start difference. First operand 918 states and 1401 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:08:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:28,054 INFO L93 Difference]: Finished difference Result 2515 states and 3895 transitions. [2023-11-29 07:08:28,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:08:28,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 504 [2023-11-29 07:08:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:28,063 INFO L225 Difference]: With dead ends: 2515 [2023-11-29 07:08:28,063 INFO L226 Difference]: Without dead ends: 1746 [2023-11-29 07:08:28,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:08:28,065 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1104 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:28,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 957 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:08:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2023-11-29 07:08:28,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1682. [2023-11-29 07:08:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1350 states have (on average 1.4866666666666666) internal successors, (2007), 1351 states have internal predecessors, (2007), 296 states have call successors, (296), 35 states have call predecessors, (296), 35 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2023-11-29 07:08:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2599 transitions. [2023-11-29 07:08:28,217 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2599 transitions. Word has length 504 [2023-11-29 07:08:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:28,218 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2599 transitions. [2023-11-29 07:08:28,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:08:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2599 transitions. [2023-11-29 07:08:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-11-29 07:08:28,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:28,222 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:28,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 07:08:28,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:28,422 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:28,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:28,423 INFO L85 PathProgramCache]: Analyzing trace with hash 162239989, now seen corresponding path program 1 times [2023-11-29 07:08:28,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:28,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306595488] [2023-11-29 07:08:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:28,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:28,475 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:28,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846243258] [2023-11-29 07:08:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:28,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:28,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:28,477 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:28,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 07:08:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:29,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 07:08:29,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 7257 proven. 360 refuted. 0 times theorem prover too weak. 3187 trivial. 0 not checked. [2023-11-29 07:08:30,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 123 proven. 96 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:31,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306595488] [2023-11-29 07:08:31,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846243258] [2023-11-29 07:08:31,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846243258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:31,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:31,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 16 [2023-11-29 07:08:31,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474142921] [2023-11-29 07:08:31,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:31,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:08:31,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:31,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:08:31,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:08:31,691 INFO L87 Difference]: Start difference. First operand 1682 states and 2599 transitions. Second operand has 16 states, 16 states have (on average 15.0625) internal successors, (241), 16 states have internal predecessors, (241), 5 states have call successors, (127), 4 states have call predecessors, (127), 8 states have return successors, (128), 5 states have call predecessors, (128), 5 states have call successors, (128) [2023-11-29 07:08:35,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:08:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:35,815 INFO L93 Difference]: Finished difference Result 3309 states and 5065 transitions. [2023-11-29 07:08:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 07:08:35,816 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.0625) internal successors, (241), 16 states have internal predecessors, (241), 5 states have call successors, (127), 4 states have call predecessors, (127), 8 states have return successors, (128), 5 states have call predecessors, (128), 5 states have call successors, (128) Word has length 504 [2023-11-29 07:08:35,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:35,824 INFO L225 Difference]: With dead ends: 3309 [2023-11-29 07:08:35,824 INFO L226 Difference]: Without dead ends: 1776 [2023-11-29 07:08:35,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2023-11-29 07:08:35,827 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 820 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:35,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1490 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 07:08:35,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2023-11-29 07:08:36,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1730. [2023-11-29 07:08:36,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1386 states have (on average 1.4668109668109668) internal successors, (2033), 1387 states have internal predecessors, (2033), 296 states have call successors, (296), 47 states have call predecessors, (296), 47 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2023-11-29 07:08:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2625 transitions. [2023-11-29 07:08:36,048 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2625 transitions. Word has length 504 [2023-11-29 07:08:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:36,049 INFO L495 AbstractCegarLoop]: Abstraction has 1730 states and 2625 transitions. [2023-11-29 07:08:36,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.0625) internal successors, (241), 16 states have internal predecessors, (241), 5 states have call successors, (127), 4 states have call predecessors, (127), 8 states have return successors, (128), 5 states have call predecessors, (128), 5 states have call successors, (128) [2023-11-29 07:08:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2625 transitions. [2023-11-29 07:08:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-11-29 07:08:36,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:36,053 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:36,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 07:08:36,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:36,253 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:36,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1833031717, now seen corresponding path program 1 times [2023-11-29 07:08:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:36,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849078471] [2023-11-29 07:08:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:36,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166953153] [2023-11-29 07:08:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:36,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:36,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:36,311 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:36,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 07:08:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:36,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:08:36,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4875 proven. 72 refuted. 0 times theorem prover too weak. 5857 trivial. 0 not checked. [2023-11-29 07:08:38,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 147 proven. 72 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:08:38,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:38,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849078471] [2023-11-29 07:08:38,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166953153] [2023-11-29 07:08:38,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166953153] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:38,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:38,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-11-29 07:08:38,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566579949] [2023-11-29 07:08:38,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:38,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:08:38,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:38,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:08:38,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:08:38,936 INFO L87 Difference]: Start difference. First operand 1730 states and 2625 transitions. Second operand has 15 states, 15 states have (on average 17.0) internal successors, (255), 15 states have internal predecessors, (255), 4 states have call successors, (148), 3 states have call predecessors, (148), 5 states have return successors, (148), 4 states have call predecessors, (148), 4 states have call successors, (148) [2023-11-29 07:08:43,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:43,357 INFO L93 Difference]: Finished difference Result 7693 states and 11641 transitions. [2023-11-29 07:08:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 07:08:43,357 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 17.0) internal successors, (255), 15 states have internal predecessors, (255), 4 states have call successors, (148), 3 states have call predecessors, (148), 5 states have return successors, (148), 4 states have call predecessors, (148), 4 states have call successors, (148) Word has length 506 [2023-11-29 07:08:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:43,389 INFO L225 Difference]: With dead ends: 7693 [2023-11-29 07:08:43,389 INFO L226 Difference]: Without dead ends: 6124 [2023-11-29 07:08:43,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1052 GetRequests, 1004 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=579, Invalid=1773, Unknown=0, NotChecked=0, Total=2352 [2023-11-29 07:08:43,395 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 4068 mSDsluCounter, 4427 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 1545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4119 SdHoareTripleChecker+Valid, 5012 SdHoareTripleChecker+Invalid, 4201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1545 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:43,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4119 Valid, 5012 Invalid, 4201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1545 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 07:08:43,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6124 states. [2023-11-29 07:08:43,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6124 to 3537. [2023-11-29 07:08:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2926 states have (on average 1.4685577580314422) internal successors, (4297), 2927 states have internal predecessors, (4297), 518 states have call successors, (518), 92 states have call predecessors, (518), 92 states have return successors, (518), 517 states have call predecessors, (518), 518 states have call successors, (518) [2023-11-29 07:08:43,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5333 transitions. [2023-11-29 07:08:43,775 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 5333 transitions. Word has length 506 [2023-11-29 07:08:43,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:43,775 INFO L495 AbstractCegarLoop]: Abstraction has 3537 states and 5333 transitions. [2023-11-29 07:08:43,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.0) internal successors, (255), 15 states have internal predecessors, (255), 4 states have call successors, (148), 3 states have call predecessors, (148), 5 states have return successors, (148), 4 states have call predecessors, (148), 4 states have call successors, (148) [2023-11-29 07:08:43,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 5333 transitions. [2023-11-29 07:08:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-11-29 07:08:43,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:43,780 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:43,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:43,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:43,980 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:43,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:43,981 INFO L85 PathProgramCache]: Analyzing trace with hash 515344149, now seen corresponding path program 1 times [2023-11-29 07:08:43,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818834289] [2023-11-29 07:08:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:44,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:44,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442192786] [2023-11-29 07:08:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:44,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:44,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:44,033 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:44,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 07:08:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:44,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:08:44,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 3915 proven. 168 refuted. 0 times theorem prover too weak. 6721 trivial. 0 not checked. [2023-11-29 07:08:50,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:50,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:50,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818834289] [2023-11-29 07:08:50,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:50,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442192786] [2023-11-29 07:08:50,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442192786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:50,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:50,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:08:50,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221941129] [2023-11-29 07:08:50,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:50,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:08:50,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:08:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:08:50,844 INFO L87 Difference]: Start difference. First operand 3537 states and 5333 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 9 states have internal predecessors, (145), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:08:59,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:59,999 INFO L93 Difference]: Finished difference Result 11023 states and 16774 transitions. [2023-11-29 07:09:00,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:09:00,000 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 9 states have internal predecessors, (145), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 506 [2023-11-29 07:09:00,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:00,015 INFO L225 Difference]: With dead ends: 11023 [2023-11-29 07:09:00,015 INFO L226 Difference]: Without dead ends: 7651 [2023-11-29 07:09:00,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:09:00,020 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 2172 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:00,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 2832 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-29 07:09:00,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2023-11-29 07:09:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 6043. [2023-11-29 07:09:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6043 states, 5215 states have (on average 1.4837967401725791) internal successors, (7738), 5220 states have internal predecessors, (7738), 698 states have call successors, (698), 129 states have call predecessors, (698), 129 states have return successors, (698), 693 states have call predecessors, (698), 698 states have call successors, (698) [2023-11-29 07:09:00,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6043 states to 6043 states and 9134 transitions. [2023-11-29 07:09:00,445 INFO L78 Accepts]: Start accepts. Automaton has 6043 states and 9134 transitions. Word has length 506 [2023-11-29 07:09:00,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:00,445 INFO L495 AbstractCegarLoop]: Abstraction has 6043 states and 9134 transitions. [2023-11-29 07:09:00,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 9 states have internal predecessors, (145), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:09:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6043 states and 9134 transitions. [2023-11-29 07:09:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-11-29 07:09:00,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:00,451 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:09:00,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:00,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:00,652 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:09:00,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash -495524965, now seen corresponding path program 1 times [2023-11-29 07:09:00,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:00,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526989076] [2023-11-29 07:09:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:00,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:00,708 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:00,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486438792] [2023-11-29 07:09:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:00,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:00,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:00,710 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:00,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 07:09:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:01,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:09:01,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:04,116 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4353 proven. 159 refuted. 0 times theorem prover too weak. 6292 trivial. 0 not checked. [2023-11-29 07:09:04,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:07,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526989076] [2023-11-29 07:09:07,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486438792] [2023-11-29 07:09:07,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486438792] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:07,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:07,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:09:07,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741689626] [2023-11-29 07:09:07,175 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:07,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:09:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:09:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:09:07,177 INFO L87 Difference]: Start difference. First operand 6043 states and 9134 transitions. Second operand has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:09:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:09,342 INFO L93 Difference]: Finished difference Result 13339 states and 20160 transitions. [2023-11-29 07:09:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:09:09,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 506 [2023-11-29 07:09:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:09,354 INFO L225 Difference]: With dead ends: 13339 [2023-11-29 07:09:09,354 INFO L226 Difference]: Without dead ends: 7465 [2023-11-29 07:09:09,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 882 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:09:09,362 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 2084 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:09,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 1967 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 07:09:09,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7465 states. [2023-11-29 07:09:09,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7465 to 6235. [2023-11-29 07:09:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6235 states, 5407 states have (on average 1.4865914555206214) internal successors, (8038), 5412 states have internal predecessors, (8038), 698 states have call successors, (698), 129 states have call predecessors, (698), 129 states have return successors, (698), 693 states have call predecessors, (698), 698 states have call successors, (698) [2023-11-29 07:09:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6235 states to 6235 states and 9434 transitions. [2023-11-29 07:09:09,808 INFO L78 Accepts]: Start accepts. Automaton has 6235 states and 9434 transitions. Word has length 506 [2023-11-29 07:09:09,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:09,808 INFO L495 AbstractCegarLoop]: Abstraction has 6235 states and 9434 transitions. [2023-11-29 07:09:09,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:09:09,809 INFO L276 IsEmpty]: Start isEmpty. Operand 6235 states and 9434 transitions. [2023-11-29 07:09:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-11-29 07:09:09,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:09,814 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:09:09,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:10,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:10,015 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:09:10,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1466049693, now seen corresponding path program 1 times [2023-11-29 07:09:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:10,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70648780] [2023-11-29 07:09:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:10,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:10,080 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:10,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125190866] [2023-11-29 07:09:10,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:10,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:10,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:10,081 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:10,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 07:09:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-29 07:09:10,759 WARN L124 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2023-11-29 07:09:10,759 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-11-29 07:09:10,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 07:09:10,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 07:09:10,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:10,972 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:10,974 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:09:11,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:09:11 BoogieIcfgContainer [2023-11-29 07:09:11,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:09:11,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:09:11,009 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:09:11,010 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:09:11,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:07:40" (3/4) ... [2023-11-29 07:09:11,011 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 07:09:11,012 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:09:11,013 INFO L158 Benchmark]: Toolchain (without parser) took 93100.84ms. Allocated memory was 172.0MB in the beginning and 453.0MB in the end (delta: 281.0MB). Free memory was 129.4MB in the beginning and 287.0MB in the end (delta: -157.6MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2023-11-29 07:09:11,013 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:09:11,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.05ms. Allocated memory is still 172.0MB. Free memory was 129.1MB in the beginning and 91.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-29 07:09:11,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 172.94ms. Allocated memory is still 172.0MB. Free memory was 91.3MB in the beginning and 128.2MB in the end (delta: -36.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2023-11-29 07:09:11,014 INFO L158 Benchmark]: Boogie Preprocessor took 201.19ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 128.2MB in the beginning and 128.7MB in the end (delta: -428.8kB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-11-29 07:09:11,014 INFO L158 Benchmark]: RCFGBuilder took 1379.75ms. Allocated memory is still 218.1MB. Free memory was 128.7MB in the beginning and 96.1MB in the end (delta: 32.5MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2023-11-29 07:09:11,014 INFO L158 Benchmark]: TraceAbstraction took 90798.82ms. Allocated memory was 218.1MB in the beginning and 453.0MB in the end (delta: 234.9MB). Free memory was 95.1MB in the beginning and 287.0MB in the end (delta: -191.9MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-11-29 07:09:11,014 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 453.0MB. Free memory is still 287.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:09:11,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.05ms. Allocated memory is still 172.0MB. Free memory was 129.1MB in the beginning and 91.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 172.94ms. Allocated memory is still 172.0MB. Free memory was 91.3MB in the beginning and 128.2MB in the end (delta: -36.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 201.19ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 128.2MB in the beginning and 128.7MB in the end (delta: -428.8kB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1379.75ms. Allocated memory is still 218.1MB. Free memory was 128.7MB in the beginning and 96.1MB in the end (delta: 32.5MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. * TraceAbstraction took 90798.82ms. Allocated memory was 218.1MB in the beginning and 453.0MB in the end (delta: 234.9MB). Free memory was 95.1MB in the beginning and 287.0MB in the end (delta: -191.9MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 453.0MB. Free memory is still 287.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 654, overapproximation of shiftLeft at line 308, overapproximation of someUnaryDOUBLEoperation at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 234, overapproximation of someBinaryDOUBLEComparisonOperation at line 654. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_4 = 10; [L24] unsigned char var_1_5 = 4; [L25] unsigned char var_1_6 = 1; [L26] float var_1_7 = 127.25; [L27] float var_1_8 = 128.5; [L28] unsigned char var_1_11 = 0; [L29] unsigned char var_1_12 = 0; [L30] signed long int var_1_13 = -1; [L31] unsigned char var_1_15 = 0; [L32] double var_1_16 = 7.125; [L33] signed short int var_1_17 = 32; [L34] unsigned char var_1_18 = 200; [L35] unsigned char var_1_19 = 1; [L36] unsigned char var_1_20 = 64; [L37] unsigned char var_1_21 = 4; [L38] unsigned long int var_1_22 = 256; [L39] unsigned short int var_1_23 = 51550; [L40] unsigned char var_1_24 = 2; [L41] unsigned long int var_1_25 = 1615427942; [L42] unsigned long int var_1_26 = 3391648498; [L43] unsigned short int var_1_27 = 2; [L44] float var_1_28 = 128.5; [L45] unsigned short int var_1_29 = 23254; [L46] unsigned short int var_1_30 = 21795; [L47] unsigned char var_1_31 = 5; [L48] unsigned char var_1_32 = 32; [L49] float var_1_33 = 127.45; [L50] float var_1_34 = 50.5; [L51] signed short int var_1_35 = -64; [L52] float var_1_36 = 1.62; [L53] unsigned char var_1_38 = 16; [L54] unsigned char var_1_39 = 128; [L55] unsigned char var_1_40 = 64; [L56] unsigned char var_1_42 = 64; [L57] unsigned char var_1_43 = 1; [L58] unsigned char var_1_44 = 1; [L59] unsigned char var_1_45 = 0; [L60] double var_1_46 = 9.8; [L61] unsigned char var_1_47 = 1; [L62] unsigned char var_1_48 = 0; [L63] unsigned char var_1_49 = 0; [L64] signed long int var_1_50 = -2; [L65] unsigned char var_1_51 = 0; [L66] unsigned char var_1_52 = 0; [L67] unsigned char var_1_53 = 10; [L68] double var_1_54 = 64.5; [L69] double var_1_55 = 0.0; [L70] double var_1_56 = 127.8; [L71] double var_1_57 = 25.5; [L72] double var_1_58 = 64.25; [L73] double var_1_59 = 4.2; [L74] double var_1_60 = 0.75; [L75] double var_1_61 = -0.25; [L76] unsigned char var_1_62 = 128; [L77] signed short int var_1_63 = 32; [L78] double var_1_64 = 127.5; [L79] signed long int var_1_65 = 50; [L80] unsigned char var_1_66 = 0; [L81] signed long int var_1_67 = -10; [L82] unsigned char var_1_68 = 64; [L83] double var_1_69 = 64.125; [L84] unsigned char var_1_70 = 1; [L85] signed short int var_1_71 = -4; [L86] float var_1_72 = 10000000000.5; [L87] double var_1_73 = 1.6; [L88] unsigned char var_1_74 = 1; [L89] unsigned char var_1_76 = 10; [L90] unsigned char var_1_77 = 200; [L91] unsigned short int var_1_78 = 5; [L92] unsigned short int var_1_79 = 56537; [L93] unsigned long int var_1_80 = 256; [L94] unsigned long int var_1_81 = 1876480992; [L95] unsigned long int var_1_82 = 1000000000; [L96] double var_1_83 = 3.5; [L97] double var_1_84 = 127.2; [L98] double var_1_85 = 1000000000000.6; [L99] signed char var_1_86 = 4; [L100] unsigned long int var_1_87 = 2; [L101] double var_1_88 = 24.2; [L102] signed char var_1_89 = -4; [L103] unsigned char var_1_90 = 0; [L104] signed short int var_1_91 = 256; [L105] unsigned long int var_1_92 = 500; [L106] unsigned char var_1_93 = 0; [L107] unsigned long int var_1_94 = 16; [L108] unsigned char var_1_95 = 25; [L109] double var_1_96 = 2.3; [L110] signed short int var_1_97 = 256; [L111] double last_1_var_1_16 = 7.125; [L112] unsigned long int last_1_var_1_22 = 256; [L113] signed short int last_1_var_1_35 = -64; [L114] unsigned char last_1_var_1_38 = 16; [L115] double last_1_var_1_46 = 9.8; [L116] double last_1_var_1_64 = 127.5; [L117] unsigned char last_1_var_1_66 = 0; [L118] double last_1_var_1_69 = 64.125; [L119] float last_1_var_1_72 = 10000000000.5; [L120] unsigned short int last_1_var_1_78 = 5; [L121] unsigned long int last_1_var_1_80 = 256; [L122] double last_1_var_1_83 = 3.5; [L123] double last_1_var_1_88 = 24.2; [L658] isInitial = 1 [L659] FCALL initially() [L660] COND TRUE 1 [L661] CALL updateLastVariables() [L639] last_1_var_1_16 = var_1_16 [L640] last_1_var_1_22 = var_1_22 [L641] last_1_var_1_35 = var_1_35 [L642] last_1_var_1_38 = var_1_38 [L643] last_1_var_1_46 = var_1_46 [L644] last_1_var_1_64 = var_1_64 [L645] last_1_var_1_66 = var_1_66 [L646] last_1_var_1_69 = var_1_69 [L647] last_1_var_1_72 = var_1_72 [L648] last_1_var_1_78 = var_1_78 [L649] last_1_var_1_80 = var_1_80 [L650] last_1_var_1_83 = var_1_83 [L651] last_1_var_1_88 = var_1_88 [L661] RET updateLastVariables() [L662] CALL updateVariables() [L521] var_1_4 = __VERIFIER_nondet_uchar() [L522] CALL assume_abort_if_not(var_1_4 >= 0) [L20] COND FALSE !(!cond) [L522] RET assume_abort_if_not(var_1_4 >= 0) [L523] CALL assume_abort_if_not(var_1_4 <= 127) [L20] COND FALSE !(!cond) [L523] RET assume_abort_if_not(var_1_4 <= 127) [L524] var_1_5 = __VERIFIER_nondet_uchar() [L525] CALL assume_abort_if_not(var_1_5 >= 0) [L20] COND FALSE !(!cond) [L525] RET assume_abort_if_not(var_1_5 >= 0) [L526] CALL assume_abort_if_not(var_1_5 <= 254) [L20] COND FALSE !(!cond) [L526] RET assume_abort_if_not(var_1_5 <= 254) [L527] var_1_7 = __VERIFIER_nondet_float() [L528] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427387900e+12F && var_1_7 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L528] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427387900e+12F && var_1_7 >= 1.0e-20F )) [L529] var_1_8 = __VERIFIER_nondet_float() [L530] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L530] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) [L531] var_1_11 = __VERIFIER_nondet_uchar() [L532] CALL assume_abort_if_not(var_1_11 >= 0) [L20] COND FALSE !(!cond) [L532] RET assume_abort_if_not(var_1_11 >= 0) [L533] CALL assume_abort_if_not(var_1_11 <= 0) [L20] COND FALSE !(!cond) [L533] RET assume_abort_if_not(var_1_11 <= 0) [L534] var_1_12 = __VERIFIER_nondet_uchar() [L535] CALL assume_abort_if_not(var_1_12 >= 0) [L20] COND FALSE !(!cond) [L535] RET assume_abort_if_not(var_1_12 >= 0) [L536] CALL assume_abort_if_not(var_1_12 <= 0) [L20] COND FALSE !(!cond) [L536] RET assume_abort_if_not(var_1_12 <= 0) [L537] var_1_13 = __VERIFIER_nondet_long() [L538] CALL assume_abort_if_not(var_1_13 >= -2147483648) [L20] COND FALSE !(!cond) [L538] RET assume_abort_if_not(var_1_13 >= -2147483648) [L539] CALL assume_abort_if_not(var_1_13 <= 2147483647) [L20] COND FALSE !(!cond) [L539] RET assume_abort_if_not(var_1_13 <= 2147483647) [L540] CALL assume_abort_if_not(var_1_13 != 0) [L20] COND FALSE !(!cond) [L540] RET assume_abort_if_not(var_1_13 != 0) [L541] var_1_15 = __VERIFIER_nondet_uchar() [L542] CALL assume_abort_if_not(var_1_15 >= 1) [L20] COND FALSE !(!cond) [L542] RET assume_abort_if_not(var_1_15 >= 1) [L543] CALL assume_abort_if_not(var_1_15 <= 1) [L20] COND FALSE !(!cond) [L543] RET assume_abort_if_not(var_1_15 <= 1) [L544] var_1_17 = __VERIFIER_nondet_short() [L545] CALL assume_abort_if_not(var_1_17 >= -32768) [L20] COND FALSE !(!cond) [L545] RET assume_abort_if_not(var_1_17 >= -32768) [L546] CALL assume_abort_if_not(var_1_17 <= 32767) [L20] COND FALSE !(!cond) [L546] RET assume_abort_if_not(var_1_17 <= 32767) [L547] CALL assume_abort_if_not(var_1_17 != 0) [L20] COND FALSE !(!cond) [L547] RET assume_abort_if_not(var_1_17 != 0) [L548] var_1_19 = __VERIFIER_nondet_uchar() [L549] CALL assume_abort_if_not(var_1_19 >= 0) [L20] COND FALSE !(!cond) [L549] RET assume_abort_if_not(var_1_19 >= 0) [L550] CALL assume_abort_if_not(var_1_19 <= 127) [L20] COND FALSE !(!cond) [L550] RET assume_abort_if_not(var_1_19 <= 127) [L551] var_1_20 = __VERIFIER_nondet_uchar() [L552] CALL assume_abort_if_not(var_1_20 >= 63) [L20] COND FALSE !(!cond) [L552] RET assume_abort_if_not(var_1_20 >= 63) [L553] CALL assume_abort_if_not(var_1_20 <= 127) [L20] COND FALSE !(!cond) [L553] RET assume_abort_if_not(var_1_20 <= 127) [L554] var_1_21 = __VERIFIER_nondet_uchar() [L555] CALL assume_abort_if_not(var_1_21 >= 0) [L20] COND FALSE !(!cond) [L555] RET assume_abort_if_not(var_1_21 >= 0) [L556] CALL assume_abort_if_not(var_1_21 <= 63) [L20] COND FALSE !(!cond) [L556] RET assume_abort_if_not(var_1_21 <= 63) [L557] var_1_23 = __VERIFIER_nondet_ushort() [L558] CALL assume_abort_if_not(var_1_23 >= 32767) [L20] COND FALSE !(!cond) [L558] RET assume_abort_if_not(var_1_23 >= 32767) [L559] CALL assume_abort_if_not(var_1_23 <= 65535) [L20] COND FALSE !(!cond) [L559] RET assume_abort_if_not(var_1_23 <= 65535) [L560] var_1_24 = __VERIFIER_nondet_uchar() [L561] CALL assume_abort_if_not(var_1_24 >= 1) [L20] COND FALSE !(!cond) [L561] RET assume_abort_if_not(var_1_24 >= 1) [L562] CALL assume_abort_if_not(var_1_24 <= 126) [L20] COND FALSE !(!cond) [L562] RET assume_abort_if_not(var_1_24 <= 126) [L563] CALL assume_abort_if_not(var_1_24 != 127) [L20] COND FALSE !(!cond) [L563] RET assume_abort_if_not(var_1_24 != 127) [L564] var_1_25 = __VERIFIER_nondet_ulong() [L565] CALL assume_abort_if_not(var_1_25 >= 1073741823) [L20] COND FALSE !(!cond) [L565] RET assume_abort_if_not(var_1_25 >= 1073741823) [L566] CALL assume_abort_if_not(var_1_25 <= 2147483647) [L20] COND FALSE !(!cond) [L566] RET assume_abort_if_not(var_1_25 <= 2147483647) [L567] var_1_26 = __VERIFIER_nondet_ulong() [L568] CALL assume_abort_if_not(var_1_26 >= 2147483647) [L20] COND FALSE !(!cond) [L568] RET assume_abort_if_not(var_1_26 >= 2147483647) [L569] CALL assume_abort_if_not(var_1_26 <= 4294967294) [L20] COND FALSE !(!cond) [L569] RET assume_abort_if_not(var_1_26 <= 4294967294) [L570] var_1_28 = __VERIFIER_nondet_float() [L571] CALL assume_abort_if_not((var_1_28 >= -922337.2036854776000e+13F && var_1_28 <= -1.0e-20F) || (var_1_28 <= 9223372.036854776000e+12F && var_1_28 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L571] RET assume_abort_if_not((var_1_28 >= -922337.2036854776000e+13F && var_1_28 <= -1.0e-20F) || (var_1_28 <= 9223372.036854776000e+12F && var_1_28 >= 1.0e-20F )) [L572] CALL assume_abort_if_not(var_1_28 != 0.0F) [L20] COND FALSE !(!cond) [L572] RET assume_abort_if_not(var_1_28 != 0.0F) [L573] var_1_29 = __VERIFIER_nondet_ushort() [L574] CALL assume_abort_if_not(var_1_29 >= 16383) [L20] COND FALSE !(!cond) [L574] RET assume_abort_if_not(var_1_29 >= 16383) [L575] CALL assume_abort_if_not(var_1_29 <= 32767) [L20] COND FALSE !(!cond) [L575] RET assume_abort_if_not(var_1_29 <= 32767) [L576] var_1_30 = __VERIFIER_nondet_ushort() [L577] CALL assume_abort_if_not(var_1_30 >= 16384) [L20] COND FALSE !(!cond) [L577] RET assume_abort_if_not(var_1_30 >= 16384) [L578] CALL assume_abort_if_not(var_1_30 <= 32767) [L20] COND FALSE !(!cond) [L578] RET assume_abort_if_not(var_1_30 <= 32767) [L579] var_1_34 = __VERIFIER_nondet_float() [L580] CALL assume_abort_if_not((var_1_34 >= -922337.2036854765600e+13F && var_1_34 <= -1.0e-20F) || (var_1_34 <= 9223372.036854765600e+12F && var_1_34 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L580] RET assume_abort_if_not((var_1_34 >= -922337.2036854765600e+13F && var_1_34 <= -1.0e-20F) || (var_1_34 <= 9223372.036854765600e+12F && var_1_34 >= 1.0e-20F )) [L581] var_1_36 = __VERIFIER_nondet_float() [L582] CALL assume_abort_if_not((var_1_36 >= 0.0F && var_1_36 <= -1.0e-20F) || (var_1_36 <= 9223372.036854776000e+12F && var_1_36 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L582] RET assume_abort_if_not((var_1_36 >= 0.0F && var_1_36 <= -1.0e-20F) || (var_1_36 <= 9223372.036854776000e+12F && var_1_36 >= 1.0e-20F )) [L583] var_1_39 = __VERIFIER_nondet_uchar() [L584] CALL assume_abort_if_not(var_1_39 >= 127) [L20] COND FALSE !(!cond) [L584] RET assume_abort_if_not(var_1_39 >= 127) [L585] CALL assume_abort_if_not(var_1_39 <= 254) [L20] COND FALSE !(!cond) [L585] RET assume_abort_if_not(var_1_39 <= 254) [L586] var_1_40 = __VERIFIER_nondet_uchar() [L587] CALL assume_abort_if_not(var_1_40 >= 64) [L20] COND FALSE !(!cond) [L587] RET assume_abort_if_not(var_1_40 >= 64) [L588] CALL assume_abort_if_not(var_1_40 <= 127) [L20] COND FALSE !(!cond) [L588] RET assume_abort_if_not(var_1_40 <= 127) [L589] var_1_42 = __VERIFIER_nondet_uchar() [L590] CALL assume_abort_if_not(var_1_42 >= 0) [L20] COND FALSE !(!cond) [L590] RET assume_abort_if_not(var_1_42 >= 0) [L591] CALL assume_abort_if_not(var_1_42 <= 127) [L20] COND FALSE !(!cond) [L591] RET assume_abort_if_not(var_1_42 <= 127) [L592] var_1_43 = __VERIFIER_nondet_uchar() [L593] CALL assume_abort_if_not(var_1_43 >= 0) [L20] COND FALSE !(!cond) [L593] RET assume_abort_if_not(var_1_43 >= 0) [L594] CALL assume_abort_if_not(var_1_43 <= 63) [L20] COND FALSE !(!cond) [L594] RET assume_abort_if_not(var_1_43 <= 63) [L595] var_1_45 = __VERIFIER_nondet_uchar() [L596] CALL assume_abort_if_not(var_1_45 >= 1) [L20] COND FALSE !(!cond) [L596] RET assume_abort_if_not(var_1_45 >= 1) [L597] CALL assume_abort_if_not(var_1_45 <= 1) [L20] COND FALSE !(!cond) [L597] RET assume_abort_if_not(var_1_45 <= 1) [L598] var_1_48 = __VERIFIER_nondet_uchar() [L599] CALL assume_abort_if_not(var_1_48 >= 0) [L20] COND FALSE !(!cond) [L599] RET assume_abort_if_not(var_1_48 >= 0) [L600] CALL assume_abort_if_not(var_1_48 <= 0) [L20] COND FALSE !(!cond) [L600] RET assume_abort_if_not(var_1_48 <= 0) [L601] var_1_49 = __VERIFIER_nondet_uchar() [L602] CALL assume_abort_if_not(var_1_49 >= 0) [L20] COND FALSE !(!cond) [L602] RET assume_abort_if_not(var_1_49 >= 0) [L603] CALL assume_abort_if_not(var_1_49 <= 0) [L20] COND FALSE !(!cond) [L603] RET assume_abort_if_not(var_1_49 <= 0) [L604] var_1_52 = __VERIFIER_nondet_uchar() [L605] CALL assume_abort_if_not(var_1_52 >= 1) [L20] COND FALSE !(!cond) [L605] RET assume_abort_if_not(var_1_52 >= 1) [L606] CALL assume_abort_if_not(var_1_52 <= 1) [L20] COND FALSE !(!cond) [L606] RET assume_abort_if_not(var_1_52 <= 1) [L607] var_1_55 = __VERIFIER_nondet_double() [L608] CALL assume_abort_if_not((var_1_55 >= 4611686.018427387900e+12F && var_1_55 <= -1.0e-20F) || (var_1_55 <= 9223372.036854776000e+12F && var_1_55 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L608] RET assume_abort_if_not((var_1_55 >= 4611686.018427387900e+12F && var_1_55 <= -1.0e-20F) || (var_1_55 <= 9223372.036854776000e+12F && var_1_55 >= 1.0e-20F )) [L609] var_1_56 = __VERIFIER_nondet_double() [L610] CALL assume_abort_if_not((var_1_56 >= 0.0F && var_1_56 <= -1.0e-20F) || (var_1_56 <= 9223372.036854765600e+12F && var_1_56 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L610] RET assume_abort_if_not((var_1_56 >= 0.0F && var_1_56 <= -1.0e-20F) || (var_1_56 <= 9223372.036854765600e+12F && var_1_56 >= 1.0e-20F )) [L611] var_1_57 = __VERIFIER_nondet_double() [L612] CALL assume_abort_if_not((var_1_57 >= 0.0F && var_1_57 <= -1.0e-20F) || (var_1_57 <= 4611686.018427382800e+12F && var_1_57 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L612] RET assume_abort_if_not((var_1_57 >= 0.0F && var_1_57 <= -1.0e-20F) || (var_1_57 <= 4611686.018427382800e+12F && var_1_57 >= 1.0e-20F )) [L613] var_1_58 = __VERIFIER_nondet_double() [L614] CALL assume_abort_if_not((var_1_58 >= 0.0F && var_1_58 <= -1.0e-20F) || (var_1_58 <= 4611686.018427382800e+12F && var_1_58 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L614] RET assume_abort_if_not((var_1_58 >= 0.0F && var_1_58 <= -1.0e-20F) || (var_1_58 <= 4611686.018427382800e+12F && var_1_58 >= 1.0e-20F )) [L615] var_1_59 = __VERIFIER_nondet_double() [L616] CALL assume_abort_if_not((var_1_59 >= -461168.6018427382800e+13F && var_1_59 <= -1.0e-20F) || (var_1_59 <= 4611686.018427382800e+12F && var_1_59 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L616] RET assume_abort_if_not((var_1_59 >= -461168.6018427382800e+13F && var_1_59 <= -1.0e-20F) || (var_1_59 <= 4611686.018427382800e+12F && var_1_59 >= 1.0e-20F )) [L617] var_1_60 = __VERIFIER_nondet_double() [L618] CALL assume_abort_if_not((var_1_60 >= -461168.6018427382800e+13F && var_1_60 <= -1.0e-20F) || (var_1_60 <= 4611686.018427382800e+12F && var_1_60 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L618] RET assume_abort_if_not((var_1_60 >= -461168.6018427382800e+13F && var_1_60 <= -1.0e-20F) || (var_1_60 <= 4611686.018427382800e+12F && var_1_60 >= 1.0e-20F )) [L619] var_1_61 = __VERIFIER_nondet_double() [L620] CALL assume_abort_if_not((var_1_61 >= -461168.6018427382800e+13F && var_1_61 <= -1.0e-20F) || (var_1_61 <= 4611686.018427382800e+12F && var_1_61 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L620] RET assume_abort_if_not((var_1_61 >= -461168.6018427382800e+13F && var_1_61 <= -1.0e-20F) || (var_1_61 <= 4611686.018427382800e+12F && var_1_61 >= 1.0e-20F )) [L621] var_1_77 = __VERIFIER_nondet_uchar() [L622] CALL assume_abort_if_not(var_1_77 >= 190) [L20] COND FALSE !(!cond) [L622] RET assume_abort_if_not(var_1_77 >= 190) [L623] CALL assume_abort_if_not(var_1_77 <= 254) [L20] COND FALSE !(!cond) [L623] RET assume_abort_if_not(var_1_77 <= 254) [L624] var_1_79 = __VERIFIER_nondet_ushort() [L625] CALL assume_abort_if_not(var_1_79 >= 32767) [L20] COND FALSE !(!cond) [L625] RET assume_abort_if_not(var_1_79 >= 32767) [L626] CALL assume_abort_if_not(var_1_79 <= 65534) [L20] COND FALSE !(!cond) [L626] RET assume_abort_if_not(var_1_79 <= 65534) [L627] var_1_81 = __VERIFIER_nondet_ulong() [L628] CALL assume_abort_if_not(var_1_81 >= 1610612735) [L20] COND FALSE !(!cond) [L628] RET assume_abort_if_not(var_1_81 >= 1610612735) [L629] CALL assume_abort_if_not(var_1_81 <= 2147483647) [L20] COND FALSE !(!cond) [L629] RET assume_abort_if_not(var_1_81 <= 2147483647) [L630] var_1_82 = __VERIFIER_nondet_ulong() [L631] CALL assume_abort_if_not(var_1_82 >= 536870911) [L20] COND FALSE !(!cond) [L631] RET assume_abort_if_not(var_1_82 >= 536870911) [L632] CALL assume_abort_if_not(var_1_82 <= 1073741823) [L20] COND FALSE !(!cond) [L632] RET assume_abort_if_not(var_1_82 <= 1073741823) [L633] var_1_84 = __VERIFIER_nondet_double() [L634] CALL assume_abort_if_not((var_1_84 >= -230584.3009213691390e+13F && var_1_84 <= -1.0e-20F) || (var_1_84 <= 2305843.009213691390e+12F && var_1_84 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L634] RET assume_abort_if_not((var_1_84 >= -230584.3009213691390e+13F && var_1_84 <= -1.0e-20F) || (var_1_84 <= 2305843.009213691390e+12F && var_1_84 >= 1.0e-20F )) [L635] var_1_85 = __VERIFIER_nondet_double() [L636] CALL assume_abort_if_not((var_1_85 >= -230584.3009213691390e+13F && var_1_85 <= -1.0e-20F) || (var_1_85 <= 2305843.009213691390e+12F && var_1_85 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L636] RET assume_abort_if_not((var_1_85 >= -230584.3009213691390e+13F && var_1_85 <= -1.0e-20F) || (var_1_85 <= 2305843.009213691390e+12F && var_1_85 >= 1.0e-20F )) [L662] RET updateVariables() [L663] CALL step() [L127] COND FALSE !(var_1_28 > var_1_60) [L132] signed short int stepLocal_15 = var_1_17; [L133] signed long int stepLocal_14 = 5 - var_1_29; [L134] COND FALSE !(stepLocal_15 >= (var_1_19 - ((((last_1_var_1_80) < (var_1_30)) ? (last_1_var_1_80) : (var_1_30))))) [L145] var_1_35 = last_1_var_1_35 [L147] unsigned char stepLocal_2 = var_1_4; [L148] EXPR var_1_35 | (var_1_13 % var_1_17) [L148] COND FALSE !((var_1_35 | (var_1_13 % var_1_17)) == stepLocal_2) [L151] signed long int stepLocal_6 = 256; [L152] signed long int stepLocal_5 = (((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5)); [L153] signed long int stepLocal_4 = var_1_20 * (var_1_23 - var_1_19); [L154] signed long int stepLocal_3 = var_1_13 / (128 - var_1_24); [L155] EXPR var_1_71 >> var_1_4 [L155] COND FALSE !(stepLocal_5 < ((var_1_71 >> var_1_4) / var_1_17)) [L172] var_1_22 = var_1_4 [L174] COND TRUE last_1_var_1_83 != (last_1_var_1_69 * var_1_8) [L175] var_1_74 = ((last_1_var_1_88 < var_1_8) || var_1_15) [L179] COND TRUE \read(var_1_74) [L180] var_1_88 = var_1_84 [L184] unsigned char stepLocal_29 = var_1_49 || var_1_74; [L185] COND FALSE !(stepLocal_29 && var_1_12) [L188] COND FALSE !(var_1_12 || var_1_49) [L195] COND TRUE var_1_25 > 64u [L196] COND TRUE ((((last_1_var_1_16) < (2.25)) ? (last_1_var_1_16) : (2.25))) != 4.4 [L197] var_1_51 = (! (! var_1_15)) [L203] COND TRUE \read(var_1_51) [L204] var_1_86 = var_1_24 [L208] COND TRUE \read(var_1_51) [L209] var_1_91 = -2 [L213] var_1_18 = (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21))))) [L214] signed long int stepLocal_13 = var_1_29 / (var_1_24 + 5); [L215] COND TRUE stepLocal_13 == var_1_20 [L216] var_1_32 = ((((var_1_4) > (var_1_20)) ? (var_1_4) : (var_1_20))) [L218] unsigned char stepLocal_20 = var_1_4; [L219] unsigned short int stepLocal_19 = var_1_23; [L220] COND FALSE !(((var_1_25 % var_1_24) * var_1_26) < stepLocal_20) [L229] var_1_46 = ((((var_1_7) < (var_1_34)) ? (var_1_7) : (var_1_34))) [L231] var_1_63 = -10 [L232] EXPR var_1_63 ^ var_1_26 [L232] EXPR var_1_19 >> var_1_21 [L232] EXPR (var_1_63 ^ var_1_26) ^ (var_1_19 >> var_1_21) [L232] unsigned long int stepLocal_30 = (var_1_63 ^ var_1_26) ^ (var_1_19 >> var_1_21); [L233] COND TRUE stepLocal_30 != (((((- var_1_39)) > (10000u)) ? ((- var_1_39)) : (10000u))) [L234] var_1_69 = (var_1_58 + ((((var_1_61) > (var_1_60)) ? (var_1_61) : (var_1_60)))) [L238] signed long int stepLocal_35 = - (var_1_68 * var_1_32); [L239] COND FALSE !(stepLocal_35 >= var_1_4) [L242] COND FALSE !((- var_1_57) >= 255.6) [L245] var_1_80 = (((var_1_81 - 10u) - (var_1_82 - var_1_42)) + var_1_25) [L246] var_1_87 = var_1_79 [L247] var_1_89 = var_1_77 [L248] var_1_92 = var_1_25 [L249] var_1_93 = var_1_4 [L250] var_1_96 = 16.25 [L251] var_1_97 = var_1_19 [L252] COND TRUE (var_1_59 + var_1_8) >= (63.72 - 9999999.5) [L253] var_1_67 = (((((var_1_71) < ((var_1_63 - var_1_42))) ? (var_1_71) : ((var_1_63 - var_1_42)))) + var_1_35) [L255] COND TRUE ! var_1_12 [L256] COND FALSE !(var_1_60 < var_1_16) [L263] var_1_76 = ((((var_1_40) < (var_1_4)) ? (var_1_40) : (var_1_4))) [L268] COND FALSE !(var_1_13 == var_1_76) [L271] var_1_95 = (((((var_1_77) < (var_1_39)) ? (var_1_77) : (var_1_39))) - (var_1_40 - var_1_21)) [L273] signed long int stepLocal_12 = var_1_4 / -256; [L274] unsigned char stepLocal_11 = var_1_15; [L275] signed long int stepLocal_10 = (((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)); [L276] unsigned long int stepLocal_9 = var_1_92; [L277] signed long int stepLocal_8 = var_1_13; [L278] unsigned char stepLocal_7 = var_1_21; [L279] COND FALSE !(stepLocal_12 <= (-1 - var_1_19)) [L300] var_1_27 = var_1_29 [L302] COND FALSE !(! (50 < var_1_92)) [L305] var_1_31 = var_1_4 [L307] unsigned short int stepLocal_26 = var_1_23; [L308] EXPR var_1_29 << var_1_5 [L308] signed long int stepLocal_25 = var_1_29 << var_1_5; [L309] COND FALSE !(stepLocal_26 < ((- var_1_31) + var_1_43)) [L316] var_1_53 = (var_1_39 - var_1_40) [L318] COND TRUE (var_1_29 + var_1_39) >= var_1_13 [L319] COND FALSE !(var_1_36 <= var_1_34) [L330] var_1_54 = 4.287 [L337] COND FALSE !(\read(var_1_48)) [L340] COND FALSE !(\read(var_1_66)) [L343] var_1_90 = var_1_4 [L345] unsigned char stepLocal_24 = var_1_76; [L346] signed long int stepLocal_23 = 10 / var_1_39; [L347] signed long int stepLocal_22 = var_1_13; [L348] unsigned char stepLocal_21 = var_1_68; [L349] COND TRUE stepLocal_23 <= (var_1_20 + var_1_29) [L350] COND TRUE var_1_30 > stepLocal_22 [L351] COND TRUE (- var_1_46) == var_1_96 [L352] var_1_47 = var_1_45 [L376] unsigned char stepLocal_18 = var_1_8 < (var_1_69 + var_1_34); [L377] unsigned char stepLocal_17 = var_1_12; [L378] unsigned long int stepLocal_16 = var_1_26 / var_1_20; [L379] COND TRUE (15.75f < (- var_1_88)) && stepLocal_18 [L380] var_1_38 = (var_1_39 - var_1_20) [L392] COND FALSE !(var_1_7 > var_1_36) [L397] unsigned short int stepLocal_27 = var_1_23; [L398] COND FALSE !(stepLocal_27 <= var_1_95) [L401] COND TRUE \read(var_1_47) [L402] var_1_62 = (var_1_19 + var_1_42) [L407] COND FALSE !((var_1_23 - (var_1_39 + 5)) < var_1_90) [L426] COND TRUE \read(var_1_47) [L427] var_1_94 = var_1_5 [L431] unsigned char stepLocal_0 = var_1_47; [L432] COND TRUE stepLocal_0 && var_1_44 [L433] var_1_1 = (var_1_4 + 5) [L437] signed long int stepLocal_28 = (var_1_1 - var_1_39) * var_1_27; [L438] COND TRUE ((((var_1_23) < (((((var_1_40) < (-100)) ? (var_1_40) : (-100))))) ? (var_1_23) : (((((var_1_40) < (-100)) ? (var_1_40) : (-100)))))) < stepLocal_28 [L439] var_1_65 = ((((-16) > ((var_1_24 - var_1_40))) ? (-16) : ((var_1_24 - var_1_40)))) [L441] COND TRUE var_1_91 <= var_1_20 [L442] COND FALSE !(\read(var_1_12)) [L445] COND TRUE var_1_44 || (var_1_92 < var_1_13) [L446] var_1_33 = ((((var_1_34) < (var_1_7)) ? (var_1_34) : (var_1_7))) [L460] var_1_50 = (var_1_65 + ((((var_1_29) < (var_1_17)) ? (var_1_29) : (var_1_17)))) [L461] unsigned char stepLocal_31 = var_1_11; [L462] COND TRUE var_1_51 || stepLocal_31 [L463] COND TRUE (var_1_8 - var_1_58) <= var_1_60 [L464] var_1_70 = (! var_1_49) [L473] unsigned char stepLocal_36 = var_1_48; [L474] COND FALSE !(var_1_70 && stepLocal_36) [L481] var_1_83 = var_1_56 [L483] signed long int stepLocal_1 = var_1_5 * (var_1_4 + var_1_68); [L484] COND FALSE !(((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) [L495] var_1_6 = var_1_15 [L497] unsigned char stepLocal_34 = var_1_32; [L498] signed long int stepLocal_33 = (((0) < (var_1_21)) ? (0) : (var_1_21)); [L499] signed long int stepLocal_32 = var_1_24 - var_1_31; [L500] COND FALSE !(var_1_34 < var_1_55) [L517] var_1_72 = ((((((((var_1_61) < (var_1_56)) ? (var_1_61) : (var_1_56)))) < (var_1_7)) ? (((((var_1_61) < (var_1_56)) ? (var_1_61) : (var_1_56)))) : (var_1_7))) [L663] RET step() [L664] CALL, EXPR property() [L654] EXPR (((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1) [L654] EXPR (((((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1)) && (var_1_18 == ((unsigned char) (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))))))) && ((((((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5))) < ((var_1_71 >> var_1_4) / var_1_17)) ? (var_1_11 ? (((var_1_20 * (var_1_23 - var_1_19)) < var_1_5) ? (var_1_22 == ((unsigned long int) var_1_71)) : 1) : ((var_1_20 >= (var_1_13 / (128 - var_1_24))) ? (var_1_22 == ((unsigned long int) (((((var_1_23 + (var_1_25 - var_1_21))) < ((var_1_26 - var_1_24))) ? ((var_1_23 + (var_1_25 - var_1_21))) : ((var_1_26 - var_1_24)))))) : ((256 >= var_1_5) ? (var_1_22 == ((unsigned long int) ((((var_1_24) < (var_1_4)) ? (var_1_24) : (var_1_4))))) : (var_1_22 == ((unsigned long int) ((((var_1_71) < ((var_1_26 - var_1_5))) ? (var_1_71) : ((var_1_26 - var_1_5))))))))) : (var_1_22 == ((unsigned long int) var_1_4))) [L654] EXPR (((((((((((((((((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1)) && (var_1_18 == ((unsigned char) (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))))))) && ((((((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5))) < ((var_1_71 >> var_1_4) / var_1_17)) ? (var_1_11 ? (((var_1_20 * (var_1_23 - var_1_19)) < var_1_5) ? (var_1_22 == ((unsigned long int) var_1_71)) : 1) : ((var_1_20 >= (var_1_13 / (128 - var_1_24))) ? (var_1_22 == ((unsigned long int) (((((var_1_23 + (var_1_25 - var_1_21))) < ((var_1_26 - var_1_24))) ? ((var_1_23 + (var_1_25 - var_1_21))) : ((var_1_26 - var_1_24)))))) : ((256 >= var_1_5) ? (var_1_22 == ((unsigned long int) ((((var_1_24) < (var_1_4)) ? (var_1_24) : (var_1_4))))) : (var_1_22 == ((unsigned long int) ((((var_1_71) < ((var_1_26 - var_1_5))) ? (var_1_71) : ((var_1_26 - var_1_5))))))))) : (var_1_22 == ((unsigned long int) var_1_4)))) && (((var_1_4 / -256) <= (-1 - var_1_19)) ? ((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) != ((64 * var_1_21) % var_1_24)) ? ((var_1_92 > var_1_18) ? ((var_1_21 >= (- var_1_18)) ? (var_1_27 == ((unsigned short int) (var_1_21 + var_1_24))) : (var_1_27 == ((unsigned short int) var_1_4))) : (var_1_27 == ((unsigned short int) (var_1_19 + (var_1_92 + var_1_92))))) : ((var_1_13 != var_1_17) ? ((((var_1_8 / var_1_28) > var_1_7) || var_1_15) ? (var_1_27 == ((unsigned short int) var_1_4)) : (var_1_27 == ((unsigned short int) ((((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) + var_1_30) - (var_1_5 + var_1_21))))) : 1)) : (var_1_27 == ((unsigned short int) var_1_29)))) && ((! (50 < var_1_92)) ? (var_1_31 == ((unsigned char) ((((var_1_5) < (var_1_24)) ? (var_1_5) : (var_1_24))))) : (var_1_31 == ((unsigned char) var_1_4)))) && (((var_1_29 / (var_1_24 + 5)) == var_1_20) ? (var_1_32 == ((unsigned char) ((((var_1_4) > (var_1_20)) ? (var_1_4) : (var_1_20))))) : 1)) && ((var_1_91 <= var_1_20) ? (var_1_12 ? (var_1_33 == ((float) ((((var_1_7) > (var_1_34)) ? (var_1_7) : (var_1_34))))) : ((var_1_44 || (var_1_92 < var_1_13)) ? (var_1_33 == ((float) ((((var_1_34) < (var_1_7)) ? (var_1_34) : (var_1_7))))) : ((var_1_92 == var_1_29) ? (((var_1_34 >= var_1_64) || var_1_74) ? (var_1_33 == ((float) var_1_7)) : (var_1_33 == ((float) var_1_7))) : 1))) : (var_1_33 == ((float) var_1_34)))) && ((var_1_17 >= (var_1_19 - ((((last_1_var_1_80) < (var_1_30)) ? (last_1_var_1_80) : (var_1_30))))) ? (((- last_1_var_1_46) > (var_1_36 - var_1_7)) ? (var_1_35 == ((signed short int) ((((((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) > (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78)))))) ? (((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) : (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78))))))))) : (((- last_1_var_1_22) < (5 - var_1_29)) ? (var_1_35 == ((signed short int) -2)) : (var_1_35 == ((signed short int) (last_1_var_1_22 - (29211 - (last_1_var_1_38 + 5))))))) : (var_1_35 == ((signed short int) last_1_var_1_35)))) && (((15.75f < (- var_1_88)) && (var_1_8 < (var_1_69 + var_1_34))) ? (var_1_38 == ((unsigned char) (var_1_39 - var_1_20))) : (((var_1_26 / var_1_20) > var_1_95) ? (var_1_38 == ((unsigned char) ((((var_1_5) < (((var_1_20 + var_1_40) - var_1_4))) ? (var_1_5) : (((var_1_20 + var_1_40) - var_1_4)))))) : (((var_1_31 != var_1_19) || var_1_12) ? (var_1_38 == ((unsigned char) (((((var_1_40) < (var_1_42)) ? (var_1_40) : (var_1_42))) + ((((var_1_19) > ((var_1_21 + var_1_43))) ? (var_1_19) : ((var_1_21 + var_1_43))))))) : (var_1_38 == ((unsigned char) ((var_1_21 + var_1_43) + ((((var_1_24) < (var_1_40)) ? (var_1_24) : (var_1_40)))))))))) && ((var_1_7 > var_1_36) ? (var_1_66 ? (var_1_44 == ((unsigned char) (var_1_15 && var_1_45))) : 1) : 1)) && ((((var_1_25 % var_1_24) * var_1_26) < var_1_4) ? ((var_1_42 > var_1_23) ? ((var_1_28 < ((((last_1_var_1_46) < (var_1_34)) ? (last_1_var_1_46) : (var_1_34)))) ? (var_1_46 == ((double) var_1_7)) : (var_1_46 == ((double) var_1_7))) : 1) : (var_1_46 == ((double) ((((var_1_7) < (var_1_34)) ? (var_1_7) : (var_1_34))))))) && (((10 / var_1_39) <= (var_1_20 + var_1_29)) ? ((var_1_30 > var_1_13) ? (((- var_1_46) == var_1_96) ? (var_1_47 == ((unsigned char) var_1_45)) : ((var_1_8 >= var_1_36) ? (var_1_47 == ((unsigned char) ((var_1_11 || (var_1_12 || var_1_48)) || var_1_49))) : ((var_1_46 != var_1_8) ? (var_1_49 ? ((var_1_40 >= var_1_68) ? (var_1_47 == ((unsigned char) (var_1_66 && var_1_48))) : (var_1_47 == ((unsigned char) ((! var_1_12) && var_1_15)))) : 1) : 1))) : ((var_1_76 < var_1_27) ? (var_1_47 == ((unsigned char) (! var_1_45))) : (var_1_47 == ((unsigned char) var_1_45)))) : 1)) && (var_1_50 == ((signed long int) (var_1_65 + ((((var_1_29) < (var_1_17)) ? (var_1_29) : (var_1_17))))))) && ((var_1_12 || var_1_49) ? (var_1_45 ? (var_1_51 == ((unsigned char) ((var_1_12 || var_1_15) && var_1_52))) : (var_1_51 == ((unsigned char) (! var_1_15)))) : ((var_1_25 > 64u) ? ((((((last_1_var_1_16) < (2.25)) ? (last_1_var_1_16) : (2.25))) != 4.4) ? (var_1_51 == ((unsigned char) (! (! var_1_15)))) : (var_1_51 == ((unsigned char) (! 1)))) : 1))) && ((var_1_23 < ((- var_1_31) + var_1_43)) ? (((var_1_29 << var_1_5) == (((((var_1_30) < (var_1_80)) ? (var_1_30) : (var_1_80))) / ((((-500) < 0 ) ? -(-500) : (-500))))) ? (var_1_53 == ((unsigned char) var_1_39)) : (var_1_53 == ((unsigned char) (128 - var_1_43)))) : (var_1_53 == ((unsigned char) (var_1_39 - var_1_40)))) [L654] EXPR ((((((((((((((((((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1)) && (var_1_18 == ((unsigned char) (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))))))) && ((((((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5))) < ((var_1_71 >> var_1_4) / var_1_17)) ? (var_1_11 ? (((var_1_20 * (var_1_23 - var_1_19)) < var_1_5) ? (var_1_22 == ((unsigned long int) var_1_71)) : 1) : ((var_1_20 >= (var_1_13 / (128 - var_1_24))) ? (var_1_22 == ((unsigned long int) (((((var_1_23 + (var_1_25 - var_1_21))) < ((var_1_26 - var_1_24))) ? ((var_1_23 + (var_1_25 - var_1_21))) : ((var_1_26 - var_1_24)))))) : ((256 >= var_1_5) ? (var_1_22 == ((unsigned long int) ((((var_1_24) < (var_1_4)) ? (var_1_24) : (var_1_4))))) : (var_1_22 == ((unsigned long int) ((((var_1_71) < ((var_1_26 - var_1_5))) ? (var_1_71) : ((var_1_26 - var_1_5))))))))) : (var_1_22 == ((unsigned long int) var_1_4)))) && (((var_1_4 / -256) <= (-1 - var_1_19)) ? ((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) != ((64 * var_1_21) % var_1_24)) ? ((var_1_92 > var_1_18) ? ((var_1_21 >= (- var_1_18)) ? (var_1_27 == ((unsigned short int) (var_1_21 + var_1_24))) : (var_1_27 == ((unsigned short int) var_1_4))) : (var_1_27 == ((unsigned short int) (var_1_19 + (var_1_92 + var_1_92))))) : ((var_1_13 != var_1_17) ? ((((var_1_8 / var_1_28) > var_1_7) || var_1_15) ? (var_1_27 == ((unsigned short int) var_1_4)) : (var_1_27 == ((unsigned short int) ((((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) + var_1_30) - (var_1_5 + var_1_21))))) : 1)) : (var_1_27 == ((unsigned short int) var_1_29)))) && ((! (50 < var_1_92)) ? (var_1_31 == ((unsigned char) ((((var_1_5) < (var_1_24)) ? (var_1_5) : (var_1_24))))) : (var_1_31 == ((unsigned char) var_1_4)))) && (((var_1_29 / (var_1_24 + 5)) == var_1_20) ? (var_1_32 == ((unsigned char) ((((var_1_4) > (var_1_20)) ? (var_1_4) : (var_1_20))))) : 1)) && ((var_1_91 <= var_1_20) ? (var_1_12 ? (var_1_33 == ((float) ((((var_1_7) > (var_1_34)) ? (var_1_7) : (var_1_34))))) : ((var_1_44 || (var_1_92 < var_1_13)) ? (var_1_33 == ((float) ((((var_1_34) < (var_1_7)) ? (var_1_34) : (var_1_7))))) : ((var_1_92 == var_1_29) ? (((var_1_34 >= var_1_64) || var_1_74) ? (var_1_33 == ((float) var_1_7)) : (var_1_33 == ((float) var_1_7))) : 1))) : (var_1_33 == ((float) var_1_34)))) && ((var_1_17 >= (var_1_19 - ((((last_1_var_1_80) < (var_1_30)) ? (last_1_var_1_80) : (var_1_30))))) ? (((- last_1_var_1_46) > (var_1_36 - var_1_7)) ? (var_1_35 == ((signed short int) ((((((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) > (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78)))))) ? (((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) : (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78))))))))) : (((- last_1_var_1_22) < (5 - var_1_29)) ? (var_1_35 == ((signed short int) -2)) : (var_1_35 == ((signed short int) (last_1_var_1_22 - (29211 - (last_1_var_1_38 + 5))))))) : (var_1_35 == ((signed short int) last_1_var_1_35)))) && (((15.75f < (- var_1_88)) && (var_1_8 < (var_1_69 + var_1_34))) ? (var_1_38 == ((unsigned char) (var_1_39 - var_1_20))) : (((var_1_26 / var_1_20) > var_1_95) ? (var_1_38 == ((unsigned char) ((((var_1_5) < (((var_1_20 + var_1_40) - var_1_4))) ? (var_1_5) : (((var_1_20 + var_1_40) - var_1_4)))))) : (((var_1_31 != var_1_19) || var_1_12) ? (var_1_38 == ((unsigned char) (((((var_1_40) < (var_1_42)) ? (var_1_40) : (var_1_42))) + ((((var_1_19) > ((var_1_21 + var_1_43))) ? (var_1_19) : ((var_1_21 + var_1_43))))))) : (var_1_38 == ((unsigned char) ((var_1_21 + var_1_43) + ((((var_1_24) < (var_1_40)) ? (var_1_24) : (var_1_40)))))))))) && ((var_1_7 > var_1_36) ? (var_1_66 ? (var_1_44 == ((unsigned char) (var_1_15 && var_1_45))) : 1) : 1)) && ((((var_1_25 % var_1_24) * var_1_26) < var_1_4) ? ((var_1_42 > var_1_23) ? ((var_1_28 < ((((last_1_var_1_46) < (var_1_34)) ? (last_1_var_1_46) : (var_1_34)))) ? (var_1_46 == ((double) var_1_7)) : (var_1_46 == ((double) var_1_7))) : 1) : (var_1_46 == ((double) ((((var_1_7) < (var_1_34)) ? (var_1_7) : (var_1_34))))))) && (((10 / var_1_39) <= (var_1_20 + var_1_29)) ? ((var_1_30 > var_1_13) ? (((- var_1_46) == var_1_96) ? (var_1_47 == ((unsigned char) var_1_45)) : ((var_1_8 >= var_1_36) ? (var_1_47 == ((unsigned char) ((var_1_11 || (var_1_12 || var_1_48)) || var_1_49))) : ((var_1_46 != var_1_8) ? (var_1_49 ? ((var_1_40 >= var_1_68) ? (var_1_47 == ((unsigned char) (var_1_66 && var_1_48))) : (var_1_47 == ((unsigned char) ((! var_1_12) && var_1_15)))) : 1) : 1))) : ((var_1_76 < var_1_27) ? (var_1_47 == ((unsigned char) (! var_1_45))) : (var_1_47 == ((unsigned char) var_1_45)))) : 1)) && (var_1_50 == ((signed long int) (var_1_65 + ((((var_1_29) < (var_1_17)) ? (var_1_29) : (var_1_17))))))) && ((var_1_12 || var_1_49) ? (var_1_45 ? (var_1_51 == ((unsigned char) ((var_1_12 || var_1_15) && var_1_52))) : (var_1_51 == ((unsigned char) (! var_1_15)))) : ((var_1_25 > 64u) ? ((((((last_1_var_1_16) < (2.25)) ? (last_1_var_1_16) : (2.25))) != 4.4) ? (var_1_51 == ((unsigned char) (! (! var_1_15)))) : (var_1_51 == ((unsigned char) (! 1)))) : 1))) && ((var_1_23 < ((- var_1_31) + var_1_43)) ? (((var_1_29 << var_1_5) == (((((var_1_30) < (var_1_80)) ? (var_1_30) : (var_1_80))) / ((((-500) < 0 ) ? -(-500) : (-500))))) ? (var_1_53 == ((unsigned char) var_1_39)) : (var_1_53 == ((unsigned char) (128 - var_1_43)))) : (var_1_53 == ((unsigned char) (var_1_39 - var_1_40))))) && (((var_1_29 + var_1_39) >= var_1_13) ? ((var_1_36 <= var_1_34) ? (var_1_45 ? (((var_1_8 - (var_1_55 - 1.00000000004E10)) == var_1_96) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : (var_1_54 == ((double) (var_1_7 - var_1_56)))) : (var_1_54 == ((double) ((((((var_1_57 - var_1_58)) > (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60))))) ? ((var_1_57 - var_1_58)) : (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60)))))) + var_1_61)))) : (var_1_54 == ((double) 4.287))) : ((((var_1_21 & var_1_30) >= ((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) && (var_1_29 != var_1_24)) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : 1)) [L654] EXPR (((((((((((((((((((((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1)) && (var_1_18 == ((unsigned char) (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))))))) && ((((((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5))) < ((var_1_71 >> var_1_4) / var_1_17)) ? (var_1_11 ? (((var_1_20 * (var_1_23 - var_1_19)) < var_1_5) ? (var_1_22 == ((unsigned long int) var_1_71)) : 1) : ((var_1_20 >= (var_1_13 / (128 - var_1_24))) ? (var_1_22 == ((unsigned long int) (((((var_1_23 + (var_1_25 - var_1_21))) < ((var_1_26 - var_1_24))) ? ((var_1_23 + (var_1_25 - var_1_21))) : ((var_1_26 - var_1_24)))))) : ((256 >= var_1_5) ? (var_1_22 == ((unsigned long int) ((((var_1_24) < (var_1_4)) ? (var_1_24) : (var_1_4))))) : (var_1_22 == ((unsigned long int) ((((var_1_71) < ((var_1_26 - var_1_5))) ? (var_1_71) : ((var_1_26 - var_1_5))))))))) : (var_1_22 == ((unsigned long int) var_1_4)))) && (((var_1_4 / -256) <= (-1 - var_1_19)) ? ((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) != ((64 * var_1_21) % var_1_24)) ? ((var_1_92 > var_1_18) ? ((var_1_21 >= (- var_1_18)) ? (var_1_27 == ((unsigned short int) (var_1_21 + var_1_24))) : (var_1_27 == ((unsigned short int) var_1_4))) : (var_1_27 == ((unsigned short int) (var_1_19 + (var_1_92 + var_1_92))))) : ((var_1_13 != var_1_17) ? ((((var_1_8 / var_1_28) > var_1_7) || var_1_15) ? (var_1_27 == ((unsigned short int) var_1_4)) : (var_1_27 == ((unsigned short int) ((((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) + var_1_30) - (var_1_5 + var_1_21))))) : 1)) : (var_1_27 == ((unsigned short int) var_1_29)))) && ((! (50 < var_1_92)) ? (var_1_31 == ((unsigned char) ((((var_1_5) < (var_1_24)) ? (var_1_5) : (var_1_24))))) : (var_1_31 == ((unsigned char) var_1_4)))) && (((var_1_29 / (var_1_24 + 5)) == var_1_20) ? (var_1_32 == ((unsigned char) ((((var_1_4) > (var_1_20)) ? (var_1_4) : (var_1_20))))) : 1)) && ((var_1_91 <= var_1_20) ? (var_1_12 ? (var_1_33 == ((float) ((((var_1_7) > (var_1_34)) ? (var_1_7) : (var_1_34))))) : ((var_1_44 || (var_1_92 < var_1_13)) ? (var_1_33 == ((float) ((((var_1_34) < (var_1_7)) ? (var_1_34) : (var_1_7))))) : ((var_1_92 == var_1_29) ? (((var_1_34 >= var_1_64) || var_1_74) ? (var_1_33 == ((float) var_1_7)) : (var_1_33 == ((float) var_1_7))) : 1))) : (var_1_33 == ((float) var_1_34)))) && ((var_1_17 >= (var_1_19 - ((((last_1_var_1_80) < (var_1_30)) ? (last_1_var_1_80) : (var_1_30))))) ? (((- last_1_var_1_46) > (var_1_36 - var_1_7)) ? (var_1_35 == ((signed short int) ((((((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) > (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78)))))) ? (((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) : (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78))))))))) : (((- last_1_var_1_22) < (5 - var_1_29)) ? (var_1_35 == ((signed short int) -2)) : (var_1_35 == ((signed short int) (last_1_var_1_22 - (29211 - (last_1_var_1_38 + 5))))))) : (var_1_35 == ((signed short int) last_1_var_1_35)))) && (((15.75f < (- var_1_88)) && (var_1_8 < (var_1_69 + var_1_34))) ? (var_1_38 == ((unsigned char) (var_1_39 - var_1_20))) : (((var_1_26 / var_1_20) > var_1_95) ? (var_1_38 == ((unsigned char) ((((var_1_5) < (((var_1_20 + var_1_40) - var_1_4))) ? (var_1_5) : (((var_1_20 + var_1_40) - var_1_4)))))) : (((var_1_31 != var_1_19) || var_1_12) ? (var_1_38 == ((unsigned char) (((((var_1_40) < (var_1_42)) ? (var_1_40) : (var_1_42))) + ((((var_1_19) > ((var_1_21 + var_1_43))) ? (var_1_19) : ((var_1_21 + var_1_43))))))) : (var_1_38 == ((unsigned char) ((var_1_21 + var_1_43) + ((((var_1_24) < (var_1_40)) ? (var_1_24) : (var_1_40)))))))))) && ((var_1_7 > var_1_36) ? (var_1_66 ? (var_1_44 == ((unsigned char) (var_1_15 && var_1_45))) : 1) : 1)) && ((((var_1_25 % var_1_24) * var_1_26) < var_1_4) ? ((var_1_42 > var_1_23) ? ((var_1_28 < ((((last_1_var_1_46) < (var_1_34)) ? (last_1_var_1_46) : (var_1_34)))) ? (var_1_46 == ((double) var_1_7)) : (var_1_46 == ((double) var_1_7))) : 1) : (var_1_46 == ((double) ((((var_1_7) < (var_1_34)) ? (var_1_7) : (var_1_34))))))) && (((10 / var_1_39) <= (var_1_20 + var_1_29)) ? ((var_1_30 > var_1_13) ? (((- var_1_46) == var_1_96) ? (var_1_47 == ((unsigned char) var_1_45)) : ((var_1_8 >= var_1_36) ? (var_1_47 == ((unsigned char) ((var_1_11 || (var_1_12 || var_1_48)) || var_1_49))) : ((var_1_46 != var_1_8) ? (var_1_49 ? ((var_1_40 >= var_1_68) ? (var_1_47 == ((unsigned char) (var_1_66 && var_1_48))) : (var_1_47 == ((unsigned char) ((! var_1_12) && var_1_15)))) : 1) : 1))) : ((var_1_76 < var_1_27) ? (var_1_47 == ((unsigned char) (! var_1_45))) : (var_1_47 == ((unsigned char) var_1_45)))) : 1)) && (var_1_50 == ((signed long int) (var_1_65 + ((((var_1_29) < (var_1_17)) ? (var_1_29) : (var_1_17))))))) && ((var_1_12 || var_1_49) ? (var_1_45 ? (var_1_51 == ((unsigned char) ((var_1_12 || var_1_15) && var_1_52))) : (var_1_51 == ((unsigned char) (! var_1_15)))) : ((var_1_25 > 64u) ? ((((((last_1_var_1_16) < (2.25)) ? (last_1_var_1_16) : (2.25))) != 4.4) ? (var_1_51 == ((unsigned char) (! (! var_1_15)))) : (var_1_51 == ((unsigned char) (! 1)))) : 1))) && ((var_1_23 < ((- var_1_31) + var_1_43)) ? (((var_1_29 << var_1_5) == (((((var_1_30) < (var_1_80)) ? (var_1_30) : (var_1_80))) / ((((-500) < 0 ) ? -(-500) : (-500))))) ? (var_1_53 == ((unsigned char) var_1_39)) : (var_1_53 == ((unsigned char) (128 - var_1_43)))) : (var_1_53 == ((unsigned char) (var_1_39 - var_1_40))))) && (((var_1_29 + var_1_39) >= var_1_13) ? ((var_1_36 <= var_1_34) ? (var_1_45 ? (((var_1_8 - (var_1_55 - 1.00000000004E10)) == var_1_96) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : (var_1_54 == ((double) (var_1_7 - var_1_56)))) : (var_1_54 == ((double) ((((((var_1_57 - var_1_58)) > (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60))))) ? ((var_1_57 - var_1_58)) : (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60)))))) + var_1_61)))) : (var_1_54 == ((double) 4.287))) : ((((var_1_21 & var_1_30) >= ((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) && (var_1_29 != var_1_24)) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : 1))) && ((var_1_23 <= var_1_95) ? (var_1_62 == ((unsigned char) ((((var_1_43) < (var_1_20)) ? (var_1_43) : (var_1_20))))) : (var_1_47 ? (var_1_62 == ((unsigned char) (var_1_19 + var_1_42))) : (var_1_62 == ((unsigned char) (var_1_39 - ((((var_1_40) > (var_1_24)) ? (var_1_40) : (var_1_24))))))))) && (var_1_63 == ((signed short int) -10))) && (((var_1_23 - (var_1_39 + 5)) < var_1_90) ? (var_1_66 ? (var_1_64 == ((double) var_1_7)) : ((! (var_1_42 != var_1_23)) ? (var_1_64 == ((double) (var_1_60 + var_1_61))) : ((var_1_61 != last_1_var_1_64) ? (((var_1_17 * var_1_27) <= ((var_1_5 * 128) ^ var_1_24)) ? (var_1_64 == ((double) var_1_59)) : (var_1_64 == ((double) var_1_34))) : (var_1_64 == ((double) ((((var_1_59) < (((((24.6) < ((255.2 + var_1_61))) ? (24.6) : ((255.2 + var_1_61)))))) ? (var_1_59) : (((((24.6) < ((255.2 + var_1_61))) ? (24.6) : ((255.2 + var_1_61)))))))))))) : 1) [L654] EXPR ((((((((((((((((((((((((((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1)) && (var_1_18 == ((unsigned char) (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))))))) && ((((((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5))) < ((var_1_71 >> var_1_4) / var_1_17)) ? (var_1_11 ? (((var_1_20 * (var_1_23 - var_1_19)) < var_1_5) ? (var_1_22 == ((unsigned long int) var_1_71)) : 1) : ((var_1_20 >= (var_1_13 / (128 - var_1_24))) ? (var_1_22 == ((unsigned long int) (((((var_1_23 + (var_1_25 - var_1_21))) < ((var_1_26 - var_1_24))) ? ((var_1_23 + (var_1_25 - var_1_21))) : ((var_1_26 - var_1_24)))))) : ((256 >= var_1_5) ? (var_1_22 == ((unsigned long int) ((((var_1_24) < (var_1_4)) ? (var_1_24) : (var_1_4))))) : (var_1_22 == ((unsigned long int) ((((var_1_71) < ((var_1_26 - var_1_5))) ? (var_1_71) : ((var_1_26 - var_1_5))))))))) : (var_1_22 == ((unsigned long int) var_1_4)))) && (((var_1_4 / -256) <= (-1 - var_1_19)) ? ((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) != ((64 * var_1_21) % var_1_24)) ? ((var_1_92 > var_1_18) ? ((var_1_21 >= (- var_1_18)) ? (var_1_27 == ((unsigned short int) (var_1_21 + var_1_24))) : (var_1_27 == ((unsigned short int) var_1_4))) : (var_1_27 == ((unsigned short int) (var_1_19 + (var_1_92 + var_1_92))))) : ((var_1_13 != var_1_17) ? ((((var_1_8 / var_1_28) > var_1_7) || var_1_15) ? (var_1_27 == ((unsigned short int) var_1_4)) : (var_1_27 == ((unsigned short int) ((((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) + var_1_30) - (var_1_5 + var_1_21))))) : 1)) : (var_1_27 == ((unsigned short int) var_1_29)))) && ((! (50 < var_1_92)) ? (var_1_31 == ((unsigned char) ((((var_1_5) < (var_1_24)) ? (var_1_5) : (var_1_24))))) : (var_1_31 == ((unsigned char) var_1_4)))) && (((var_1_29 / (var_1_24 + 5)) == var_1_20) ? (var_1_32 == ((unsigned char) ((((var_1_4) > (var_1_20)) ? (var_1_4) : (var_1_20))))) : 1)) && ((var_1_91 <= var_1_20) ? (var_1_12 ? (var_1_33 == ((float) ((((var_1_7) > (var_1_34)) ? (var_1_7) : (var_1_34))))) : ((var_1_44 || (var_1_92 < var_1_13)) ? (var_1_33 == ((float) ((((var_1_34) < (var_1_7)) ? (var_1_34) : (var_1_7))))) : ((var_1_92 == var_1_29) ? (((var_1_34 >= var_1_64) || var_1_74) ? (var_1_33 == ((float) var_1_7)) : (var_1_33 == ((float) var_1_7))) : 1))) : (var_1_33 == ((float) var_1_34)))) && ((var_1_17 >= (var_1_19 - ((((last_1_var_1_80) < (var_1_30)) ? (last_1_var_1_80) : (var_1_30))))) ? (((- last_1_var_1_46) > (var_1_36 - var_1_7)) ? (var_1_35 == ((signed short int) ((((((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) > (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78)))))) ? (((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) : (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78))))))))) : (((- last_1_var_1_22) < (5 - var_1_29)) ? (var_1_35 == ((signed short int) -2)) : (var_1_35 == ((signed short int) (last_1_var_1_22 - (29211 - (last_1_var_1_38 + 5))))))) : (var_1_35 == ((signed short int) last_1_var_1_35)))) && (((15.75f < (- var_1_88)) && (var_1_8 < (var_1_69 + var_1_34))) ? (var_1_38 == ((unsigned char) (var_1_39 - var_1_20))) : (((var_1_26 / var_1_20) > var_1_95) ? (var_1_38 == ((unsigned char) ((((var_1_5) < (((var_1_20 + var_1_40) - var_1_4))) ? (var_1_5) : (((var_1_20 + var_1_40) - var_1_4)))))) : (((var_1_31 != var_1_19) || var_1_12) ? (var_1_38 == ((unsigned char) (((((var_1_40) < (var_1_42)) ? (var_1_40) : (var_1_42))) + ((((var_1_19) > ((var_1_21 + var_1_43))) ? (var_1_19) : ((var_1_21 + var_1_43))))))) : (var_1_38 == ((unsigned char) ((var_1_21 + var_1_43) + ((((var_1_24) < (var_1_40)) ? (var_1_24) : (var_1_40)))))))))) && ((var_1_7 > var_1_36) ? (var_1_66 ? (var_1_44 == ((unsigned char) (var_1_15 && var_1_45))) : 1) : 1)) && ((((var_1_25 % var_1_24) * var_1_26) < var_1_4) ? ((var_1_42 > var_1_23) ? ((var_1_28 < ((((last_1_var_1_46) < (var_1_34)) ? (last_1_var_1_46) : (var_1_34)))) ? (var_1_46 == ((double) var_1_7)) : (var_1_46 == ((double) var_1_7))) : 1) : (var_1_46 == ((double) ((((var_1_7) < (var_1_34)) ? (var_1_7) : (var_1_34))))))) && (((10 / var_1_39) <= (var_1_20 + var_1_29)) ? ((var_1_30 > var_1_13) ? (((- var_1_46) == var_1_96) ? (var_1_47 == ((unsigned char) var_1_45)) : ((var_1_8 >= var_1_36) ? (var_1_47 == ((unsigned char) ((var_1_11 || (var_1_12 || var_1_48)) || var_1_49))) : ((var_1_46 != var_1_8) ? (var_1_49 ? ((var_1_40 >= var_1_68) ? (var_1_47 == ((unsigned char) (var_1_66 && var_1_48))) : (var_1_47 == ((unsigned char) ((! var_1_12) && var_1_15)))) : 1) : 1))) : ((var_1_76 < var_1_27) ? (var_1_47 == ((unsigned char) (! var_1_45))) : (var_1_47 == ((unsigned char) var_1_45)))) : 1)) && (var_1_50 == ((signed long int) (var_1_65 + ((((var_1_29) < (var_1_17)) ? (var_1_29) : (var_1_17))))))) && ((var_1_12 || var_1_49) ? (var_1_45 ? (var_1_51 == ((unsigned char) ((var_1_12 || var_1_15) && var_1_52))) : (var_1_51 == ((unsigned char) (! var_1_15)))) : ((var_1_25 > 64u) ? ((((((last_1_var_1_16) < (2.25)) ? (last_1_var_1_16) : (2.25))) != 4.4) ? (var_1_51 == ((unsigned char) (! (! var_1_15)))) : (var_1_51 == ((unsigned char) (! 1)))) : 1))) && ((var_1_23 < ((- var_1_31) + var_1_43)) ? (((var_1_29 << var_1_5) == (((((var_1_30) < (var_1_80)) ? (var_1_30) : (var_1_80))) / ((((-500) < 0 ) ? -(-500) : (-500))))) ? (var_1_53 == ((unsigned char) var_1_39)) : (var_1_53 == ((unsigned char) (128 - var_1_43)))) : (var_1_53 == ((unsigned char) (var_1_39 - var_1_40))))) && (((var_1_29 + var_1_39) >= var_1_13) ? ((var_1_36 <= var_1_34) ? (var_1_45 ? (((var_1_8 - (var_1_55 - 1.00000000004E10)) == var_1_96) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : (var_1_54 == ((double) (var_1_7 - var_1_56)))) : (var_1_54 == ((double) ((((((var_1_57 - var_1_58)) > (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60))))) ? ((var_1_57 - var_1_58)) : (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60)))))) + var_1_61)))) : (var_1_54 == ((double) 4.287))) : ((((var_1_21 & var_1_30) >= ((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) && (var_1_29 != var_1_24)) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : 1))) && ((var_1_23 <= var_1_95) ? (var_1_62 == ((unsigned char) ((((var_1_43) < (var_1_20)) ? (var_1_43) : (var_1_20))))) : (var_1_47 ? (var_1_62 == ((unsigned char) (var_1_19 + var_1_42))) : (var_1_62 == ((unsigned char) (var_1_39 - ((((var_1_40) > (var_1_24)) ? (var_1_40) : (var_1_24))))))))) && (var_1_63 == ((signed short int) -10))) && (((var_1_23 - (var_1_39 + 5)) < var_1_90) ? (var_1_66 ? (var_1_64 == ((double) var_1_7)) : ((! (var_1_42 != var_1_23)) ? (var_1_64 == ((double) (var_1_60 + var_1_61))) : ((var_1_61 != last_1_var_1_64) ? (((var_1_17 * var_1_27) <= ((var_1_5 * 128) ^ var_1_24)) ? (var_1_64 == ((double) var_1_59)) : (var_1_64 == ((double) var_1_34))) : (var_1_64 == ((double) ((((var_1_59) < (((((24.6) < ((255.2 + var_1_61))) ? (24.6) : ((255.2 + var_1_61)))))) ? (var_1_59) : (((((24.6) < ((255.2 + var_1_61))) ? (24.6) : ((255.2 + var_1_61)))))))))))) : 1)) && ((((((var_1_23) < (((((var_1_40) < (-100)) ? (var_1_40) : (-100))))) ? (var_1_23) : (((((var_1_40) < (-100)) ? (var_1_40) : (-100)))))) < ((var_1_1 - var_1_39) * var_1_27)) ? (var_1_65 == ((signed long int) ((((-16) > ((var_1_24 - var_1_40))) ? (-16) : ((var_1_24 - var_1_40)))))) : 1)) && (var_1_48 ? (var_1_66 == ((unsigned char) ((var_1_21 < var_1_27) || (var_1_52 && var_1_15)))) : 1)) && (((var_1_59 + var_1_8) >= (63.72 - 9999999.5)) ? (var_1_67 == ((signed long int) (((((var_1_71) < ((var_1_63 - var_1_42))) ? (var_1_71) : ((var_1_63 - var_1_42)))) + var_1_35))) : 1)) && (((var_1_49 || var_1_74) && var_1_12) ? (var_1_68 == ((unsigned char) var_1_5)) : 1)) && ((((var_1_63 ^ var_1_26) ^ (var_1_19 >> var_1_21)) != (((((- var_1_39)) > (10000u)) ? ((- var_1_39)) : (10000u)))) ? (var_1_69 == ((double) (var_1_58 + ((((var_1_61) > (var_1_60)) ? (var_1_61) : (var_1_60)))))) : (var_1_69 == ((double) (var_1_57 - var_1_7)))) [L654-L655] return (((((((((((((((((((((((((((((((((((((((((((((((var_1_47 && var_1_44) ? (var_1_1 == ((unsigned char) (var_1_4 + 5))) : (var_1_1 == ((unsigned char) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && ((((var_1_7 + 100000.5f) - var_1_8) > (var_1_88 + var_1_83)) ? ((var_1_8 > var_1_88) ? (var_1_6 == ((unsigned char) (var_1_11 || (var_1_47 && var_1_12)))) : (((var_1_27 / var_1_13) != (var_1_5 * (var_1_4 + var_1_68))) ? (var_1_6 == ((unsigned char) (! ((var_1_88 >= var_1_83) || var_1_15)))) : (var_1_6 == ((unsigned char) ((var_1_13 > ((((var_1_68) > (var_1_27)) ? (var_1_68) : (var_1_27)))) && var_1_12))))) : (var_1_6 == ((unsigned char) var_1_15)))) && (((var_1_35 | (var_1_13 % var_1_17)) == var_1_4) ? (var_1_16 == ((double) ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7))))) : 1)) && (var_1_18 == ((unsigned char) (var_1_4 + ((((var_1_19) < ((var_1_20 - var_1_21))) ? (var_1_19) : ((var_1_20 - var_1_21)))))))) && ((((((var_1_19) > (var_1_5)) ? (var_1_19) : (var_1_5))) < ((var_1_71 >> var_1_4) / var_1_17)) ? (var_1_11 ? (((var_1_20 * (var_1_23 - var_1_19)) < var_1_5) ? (var_1_22 == ((unsigned long int) var_1_71)) : 1) : ((var_1_20 >= (var_1_13 / (128 - var_1_24))) ? (var_1_22 == ((unsigned long int) (((((var_1_23 + (var_1_25 - var_1_21))) < ((var_1_26 - var_1_24))) ? ((var_1_23 + (var_1_25 - var_1_21))) : ((var_1_26 - var_1_24)))))) : ((256 >= var_1_5) ? (var_1_22 == ((unsigned long int) ((((var_1_24) < (var_1_4)) ? (var_1_24) : (var_1_4))))) : (var_1_22 == ((unsigned long int) ((((var_1_71) < ((var_1_26 - var_1_5))) ? (var_1_71) : ((var_1_26 - var_1_5))))))))) : (var_1_22 == ((unsigned long int) var_1_4)))) && (((var_1_4 / -256) <= (-1 - var_1_19)) ? ((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18))) != ((64 * var_1_21) % var_1_24)) ? ((var_1_92 > var_1_18) ? ((var_1_21 >= (- var_1_18)) ? (var_1_27 == ((unsigned short int) (var_1_21 + var_1_24))) : (var_1_27 == ((unsigned short int) var_1_4))) : (var_1_27 == ((unsigned short int) (var_1_19 + (var_1_92 + var_1_92))))) : ((var_1_13 != var_1_17) ? ((((var_1_8 / var_1_28) > var_1_7) || var_1_15) ? (var_1_27 == ((unsigned short int) var_1_4)) : (var_1_27 == ((unsigned short int) ((((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) + var_1_30) - (var_1_5 + var_1_21))))) : 1)) : (var_1_27 == ((unsigned short int) var_1_29)))) && ((! (50 < var_1_92)) ? (var_1_31 == ((unsigned char) ((((var_1_5) < (var_1_24)) ? (var_1_5) : (var_1_24))))) : (var_1_31 == ((unsigned char) var_1_4)))) && (((var_1_29 / (var_1_24 + 5)) == var_1_20) ? (var_1_32 == ((unsigned char) ((((var_1_4) > (var_1_20)) ? (var_1_4) : (var_1_20))))) : 1)) && ((var_1_91 <= var_1_20) ? (var_1_12 ? (var_1_33 == ((float) ((((var_1_7) > (var_1_34)) ? (var_1_7) : (var_1_34))))) : ((var_1_44 || (var_1_92 < var_1_13)) ? (var_1_33 == ((float) ((((var_1_34) < (var_1_7)) ? (var_1_34) : (var_1_7))))) : ((var_1_92 == var_1_29) ? (((var_1_34 >= var_1_64) || var_1_74) ? (var_1_33 == ((float) var_1_7)) : (var_1_33 == ((float) var_1_7))) : 1))) : (var_1_33 == ((float) var_1_34)))) && ((var_1_17 >= (var_1_19 - ((((last_1_var_1_80) < (var_1_30)) ? (last_1_var_1_80) : (var_1_30))))) ? (((- last_1_var_1_46) > (var_1_36 - var_1_7)) ? (var_1_35 == ((signed short int) ((((((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) > (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78)))))) ? (((((last_1_var_1_35) > (var_1_19)) ? (last_1_var_1_35) : (var_1_19)))) : (((var_1_5 + -10) + ((((last_1_var_1_22) > (last_1_var_1_78)) ? (last_1_var_1_22) : (last_1_var_1_78))))))))) : (((- last_1_var_1_22) < (5 - var_1_29)) ? (var_1_35 == ((signed short int) -2)) : (var_1_35 == ((signed short int) (last_1_var_1_22 - (29211 - (last_1_var_1_38 + 5))))))) : (var_1_35 == ((signed short int) last_1_var_1_35)))) && (((15.75f < (- var_1_88)) && (var_1_8 < (var_1_69 + var_1_34))) ? (var_1_38 == ((unsigned char) (var_1_39 - var_1_20))) : (((var_1_26 / var_1_20) > var_1_95) ? (var_1_38 == ((unsigned char) ((((var_1_5) < (((var_1_20 + var_1_40) - var_1_4))) ? (var_1_5) : (((var_1_20 + var_1_40) - var_1_4)))))) : (((var_1_31 != var_1_19) || var_1_12) ? (var_1_38 == ((unsigned char) (((((var_1_40) < (var_1_42)) ? (var_1_40) : (var_1_42))) + ((((var_1_19) > ((var_1_21 + var_1_43))) ? (var_1_19) : ((var_1_21 + var_1_43))))))) : (var_1_38 == ((unsigned char) ((var_1_21 + var_1_43) + ((((var_1_24) < (var_1_40)) ? (var_1_24) : (var_1_40)))))))))) && ((var_1_7 > var_1_36) ? (var_1_66 ? (var_1_44 == ((unsigned char) (var_1_15 && var_1_45))) : 1) : 1)) && ((((var_1_25 % var_1_24) * var_1_26) < var_1_4) ? ((var_1_42 > var_1_23) ? ((var_1_28 < ((((last_1_var_1_46) < (var_1_34)) ? (last_1_var_1_46) : (var_1_34)))) ? (var_1_46 == ((double) var_1_7)) : (var_1_46 == ((double) var_1_7))) : 1) : (var_1_46 == ((double) ((((var_1_7) < (var_1_34)) ? (var_1_7) : (var_1_34))))))) && (((10 / var_1_39) <= (var_1_20 + var_1_29)) ? ((var_1_30 > var_1_13) ? (((- var_1_46) == var_1_96) ? (var_1_47 == ((unsigned char) var_1_45)) : ((var_1_8 >= var_1_36) ? (var_1_47 == ((unsigned char) ((var_1_11 || (var_1_12 || var_1_48)) || var_1_49))) : ((var_1_46 != var_1_8) ? (var_1_49 ? ((var_1_40 >= var_1_68) ? (var_1_47 == ((unsigned char) (var_1_66 && var_1_48))) : (var_1_47 == ((unsigned char) ((! var_1_12) && var_1_15)))) : 1) : 1))) : ((var_1_76 < var_1_27) ? (var_1_47 == ((unsigned char) (! var_1_45))) : (var_1_47 == ((unsigned char) var_1_45)))) : 1)) && (var_1_50 == ((signed long int) (var_1_65 + ((((var_1_29) < (var_1_17)) ? (var_1_29) : (var_1_17))))))) && ((var_1_12 || var_1_49) ? (var_1_45 ? (var_1_51 == ((unsigned char) ((var_1_12 || var_1_15) && var_1_52))) : (var_1_51 == ((unsigned char) (! var_1_15)))) : ((var_1_25 > 64u) ? ((((((last_1_var_1_16) < (2.25)) ? (last_1_var_1_16) : (2.25))) != 4.4) ? (var_1_51 == ((unsigned char) (! (! var_1_15)))) : (var_1_51 == ((unsigned char) (! 1)))) : 1))) && ((var_1_23 < ((- var_1_31) + var_1_43)) ? (((var_1_29 << var_1_5) == (((((var_1_30) < (var_1_80)) ? (var_1_30) : (var_1_80))) / ((((-500) < 0 ) ? -(-500) : (-500))))) ? (var_1_53 == ((unsigned char) var_1_39)) : (var_1_53 == ((unsigned char) (128 - var_1_43)))) : (var_1_53 == ((unsigned char) (var_1_39 - var_1_40))))) && (((var_1_29 + var_1_39) >= var_1_13) ? ((var_1_36 <= var_1_34) ? (var_1_45 ? (((var_1_8 - (var_1_55 - 1.00000000004E10)) == var_1_96) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : (var_1_54 == ((double) (var_1_7 - var_1_56)))) : (var_1_54 == ((double) ((((((var_1_57 - var_1_58)) > (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60))))) ? ((var_1_57 - var_1_58)) : (((((var_1_59) < (var_1_60)) ? (var_1_59) : (var_1_60)))))) + var_1_61)))) : (var_1_54 == ((double) 4.287))) : ((((var_1_21 & var_1_30) >= ((((var_1_23) < 0 ) ? -(var_1_23) : (var_1_23)))) && (var_1_29 != var_1_24)) ? (var_1_54 == ((double) (var_1_7 - var_1_56))) : 1))) && ((var_1_23 <= var_1_95) ? (var_1_62 == ((unsigned char) ((((var_1_43) < (var_1_20)) ? (var_1_43) : (var_1_20))))) : (var_1_47 ? (var_1_62 == ((unsigned char) (var_1_19 + var_1_42))) : (var_1_62 == ((unsigned char) (var_1_39 - ((((var_1_40) > (var_1_24)) ? (var_1_40) : (var_1_24))))))))) && (var_1_63 == ((signed short int) -10))) && (((var_1_23 - (var_1_39 + 5)) < var_1_90) ? (var_1_66 ? (var_1_64 == ((double) var_1_7)) : ((! (var_1_42 != var_1_23)) ? (var_1_64 == ((double) (var_1_60 + var_1_61))) : ((var_1_61 != last_1_var_1_64) ? (((var_1_17 * var_1_27) <= ((var_1_5 * 128) ^ var_1_24)) ? (var_1_64 == ((double) var_1_59)) : (var_1_64 == ((double) var_1_34))) : (var_1_64 == ((double) ((((var_1_59) < (((((24.6) < ((255.2 + var_1_61))) ? (24.6) : ((255.2 + var_1_61)))))) ? (var_1_59) : (((((24.6) < ((255.2 + var_1_61))) ? (24.6) : ((255.2 + var_1_61)))))))))))) : 1)) && ((((((var_1_23) < (((((var_1_40) < (-100)) ? (var_1_40) : (-100))))) ? (var_1_23) : (((((var_1_40) < (-100)) ? (var_1_40) : (-100)))))) < ((var_1_1 - var_1_39) * var_1_27)) ? (var_1_65 == ((signed long int) ((((-16) > ((var_1_24 - var_1_40))) ? (-16) : ((var_1_24 - var_1_40)))))) : 1)) && (var_1_48 ? (var_1_66 == ((unsigned char) ((var_1_21 < var_1_27) || (var_1_52 && var_1_15)))) : 1)) && (((var_1_59 + var_1_8) >= (63.72 - 9999999.5)) ? (var_1_67 == ((signed long int) (((((var_1_71) < ((var_1_63 - var_1_42))) ? (var_1_71) : ((var_1_63 - var_1_42)))) + var_1_35))) : 1)) && (((var_1_49 || var_1_74) && var_1_12) ? (var_1_68 == ((unsigned char) var_1_5)) : 1)) && ((((var_1_63 ^ var_1_26) ^ (var_1_19 >> var_1_21)) != (((((- var_1_39)) > (10000u)) ? ((- var_1_39)) : (10000u)))) ? (var_1_69 == ((double) (var_1_58 + ((((var_1_61) > (var_1_60)) ? (var_1_61) : (var_1_60)))))) : (var_1_69 == ((double) (var_1_57 - var_1_7))))) && ((var_1_51 || var_1_11) ? (((var_1_8 - var_1_58) <= var_1_60) ? (var_1_70 == ((unsigned char) (! var_1_49))) : 1) : (var_1_12 ? (var_1_70 == ((unsigned char) ((((((var_1_50) < (var_1_39)) ? (var_1_50) : (var_1_39))) <= var_1_32) && var_1_49))) : (var_1_70 == ((unsigned char) ((((((15.4f) < 0 ) ? -(15.4f) : (15.4f))) > var_1_55) || (var_1_11 || (! var_1_49)))))))) && ((var_1_28 > var_1_60) ? ((last_1_var_1_72 >= (var_1_36 - (10.25f + var_1_57))) ? (var_1_71 == ((signed short int) (((((-1) < (var_1_24)) ? (-1) : (var_1_24))) + var_1_4))) : 1) : 1)) && ((var_1_34 < var_1_55) ? ((var_1_86 > ((((0) < (var_1_21)) ? (0) : (var_1_21)))) ? ((var_1_32 < var_1_67) ? (((var_1_24 - var_1_31) > -10000000) ? (var_1_72 == ((float) (((((((var_1_59) > (var_1_60)) ? (var_1_59) : (var_1_60))) < 0 ) ? -((((var_1_59) > (var_1_60)) ? (var_1_59) : (var_1_60))) : ((((var_1_59) > (var_1_60)) ? (var_1_59) : (var_1_60))))))) : 1) : (var_1_72 == ((float) (var_1_7 - var_1_58)))) : ((var_1_83 <= var_1_33) ? (var_1_72 == ((float) ((((var_1_7 - ((((var_1_57) > (8.375f)) ? (var_1_57) : (8.375f)))) < 0 ) ? -(var_1_7 - ((((var_1_57) > (8.375f)) ? (var_1_57) : (8.375f)))) : (var_1_7 - ((((var_1_57) > (8.375f)) ? (var_1_57) : (8.375f)))))))) : (var_1_72 == ((float) ((((var_1_57) > (var_1_7)) ? (var_1_57) : (var_1_7))))))) : (var_1_72 == ((float) ((((((((var_1_61) < (var_1_56)) ? (var_1_61) : (var_1_56)))) < (var_1_7)) ? (((((var_1_61) < (var_1_56)) ? (var_1_61) : (var_1_56)))) : (var_1_7))))))) && (((- (var_1_68 * var_1_32)) >= var_1_4) ? (var_1_73 == ((double) ((((var_1_61) < 0 ) ? -(var_1_61) : (var_1_61))))) : 1)) && ((last_1_var_1_83 != (last_1_var_1_69 * var_1_8)) ? (var_1_74 == ((unsigned char) ((last_1_var_1_88 < var_1_8) || var_1_15))) : (var_1_74 == ((unsigned char) (last_1_var_1_66 && var_1_11))))) && ((! var_1_12) ? ((var_1_60 < var_1_16) ? (((var_1_25 / var_1_20) < var_1_29) ? (var_1_76 == ((unsigned char) (var_1_39 - var_1_42))) : (var_1_76 == ((unsigned char) ((var_1_77 - ((((var_1_43) < (var_1_21)) ? (var_1_43) : (var_1_21)))) - ((((var_1_19) > (var_1_42)) ? (var_1_19) : (var_1_42))))))) : (var_1_76 == ((unsigned char) ((((var_1_40) < (var_1_4)) ? (var_1_40) : (var_1_4)))))) : (var_1_76 == ((unsigned char) ((((var_1_24) < 0 ) ? -(var_1_24) : (var_1_24))))))) && (((- var_1_57) >= 255.6) ? (var_1_78 == ((unsigned short int) (var_1_79 - var_1_29))) : 1)) && (var_1_80 == ((unsigned long int) (((var_1_81 - 10u) - (var_1_82 - var_1_42)) + var_1_25)))) && ((var_1_70 && var_1_48) ? (var_1_47 ? (var_1_83 == ((double) ((var_1_84 + var_1_85) + (var_1_58 - var_1_57)))) : (var_1_83 == ((double) var_1_85))) : (var_1_83 == ((double) var_1_56)))) && (var_1_51 ? (var_1_86 == ((signed char) var_1_24)) : (var_1_86 == ((signed char) var_1_24)))) && (var_1_87 == ((unsigned long int) var_1_79))) && (var_1_74 ? (var_1_88 == ((double) var_1_84)) : (var_1_88 == ((double) var_1_85)))) && (var_1_89 == ((signed char) var_1_77))) && (var_1_66 ? (var_1_90 == ((unsigned char) var_1_77)) : (var_1_90 == ((unsigned char) var_1_4)))) && (var_1_51 ? (var_1_91 == ((signed short int) -2)) : (var_1_91 == ((signed short int) 10)))) && (var_1_92 == ((unsigned long int) var_1_25))) && (var_1_93 == ((unsigned char) var_1_4))) && (var_1_47 ? (var_1_94 == ((unsigned long int) var_1_5)) : (var_1_94 == ((unsigned long int) var_1_87)))) && ((var_1_13 == var_1_76) ? (var_1_95 == ((unsigned char) var_1_40)) : (var_1_95 == ((unsigned char) (((((var_1_77) < (var_1_39)) ? (var_1_77) : (var_1_39))) - (var_1_40 - var_1_21)))))) && (var_1_96 == ((double) 16.25))) && (var_1_97 == ((signed short int) var_1_19)) ; [L664] RET, EXPR property() [L664] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 90.7s, OverallIterations: 20, TraceHistogramMax: 74, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 46.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 18629 SdHoareTripleChecker+Valid, 38.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18299 mSDsluCounter, 30746 SdHoareTripleChecker+Invalid, 37.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21489 mSDsCounter, 3013 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11399 IncrementalHoareTripleChecker+Invalid, 14415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3013 mSolverCounterUnsat, 9257 mSDtfsCounter, 11399 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15103 GetRequests, 14865 SyntacticMatches, 5 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6235occurred in iteration=19, InterpolantAutomatonStates: 202, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 7311 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.6s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 26.7s InterpolantComputationTime, 10516 NumberOfCodeBlocks, 10516 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 14493 ConstructedInterpolants, 49 QuantifiedInterpolants, 58443 SizeOfPredicates, 63 NumberOfNonLiveVariables, 22999 ConjunctsInSsa, 148 ConjunctsInUnsatCore, 29 InterpolantComputations, 7 PerfectInterpolantSequences, 310373/313316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 07:09:11,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/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_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/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 3f3d7c99d022d8509e68f89579042bc1fecba07028d59ece346230f0791ea7f9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:09:12,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:09:12,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 07:09:13,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:09:13,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:09:13,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:09:13,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:09:13,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:09:13,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:09:13,033 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:09:13,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:09:13,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:09:13,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:09:13,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:09:13,036 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:09:13,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:09:13,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:09:13,038 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:09:13,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:09:13,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:09:13,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:09:13,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:09:13,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:09:13,043 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:09:13,043 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 07:09:13,044 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 07:09:13,044 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:09:13,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:09:13,045 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:09:13,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:09:13,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:09:13,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:09:13,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:09:13,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:09:13,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:09:13,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:09:13,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:09:13,048 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 07:09:13,048 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 07:09:13,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:09:13,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:09:13,049 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:09:13,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:09:13,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:09:13,049 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 07:09:13,050 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_8740b18b-86cc-43a2-9d44-3a74d8907204/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f3d7c99d022d8509e68f89579042bc1fecba07028d59ece346230f0791ea7f9 [2023-11-29 07:09:13,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:09:13,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:09:13,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:09:13,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:09:13,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:09:13,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i [2023-11-29 07:09:16,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:09:16,331 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:09:16,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i [2023-11-29 07:09:16,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data/93051c1af/621694fd733e43e9aa245c0678fb92cc/FLAG322c21b49 [2023-11-29 07:09:16,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/data/93051c1af/621694fd733e43e9aa245c0678fb92cc [2023-11-29 07:09:16,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:09:16,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:09:16,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:09:16,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:09:16,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:09:16,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:16,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45699055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16, skipping insertion in model container [2023-11-29 07:09:16,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:16,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:09:16,547 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_8740b18b-86cc-43a2-9d44-3a74d8907204/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i[916,929] [2023-11-29 07:09:16,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:09:16,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:09:16,811 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_8740b18b-86cc-43a2-9d44-3a74d8907204/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-43.i[916,929] [2023-11-29 07:09:16,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:09:16,947 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:09:16,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16 WrapperNode [2023-11-29 07:09:16,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:09:16,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:09:16,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:09:16,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:09:16,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:16,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,036 INFO L138 Inliner]: procedures = 27, calls = 87, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 587 [2023-11-29 07:09:17,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:09:17,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:09:17,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:09:17,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:09:17,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,095 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 07:09:17,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:09:17,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:09:17,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:09:17,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:09:17,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (1/1) ... [2023-11-29 07:09:17,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:09:17,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:17,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:09:17,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:09:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:09:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 07:09:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:09:17,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:09:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:09:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:09:17,397 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:09:17,400 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:10:01,232 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:10:01,294 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:10:01,295 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:10:01,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:01 BoogieIcfgContainer [2023-11-29 07:10:01,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:10:01,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:10:01,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:10:01,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:10:01,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:09:16" (1/3) ... [2023-11-29 07:10:01,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531dca60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:10:01, skipping insertion in model container [2023-11-29 07:10:01,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:16" (2/3) ... [2023-11-29 07:10:01,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531dca60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:10:01, skipping insertion in model container [2023-11-29 07:10:01,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:01" (3/3) ... [2023-11-29 07:10:01,303 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-43.i [2023-11-29 07:10:01,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:10:01,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:10:01,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:10:01,377 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;@7f41ca63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:10:01,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:10:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 161 states have (on average 1.5838509316770186) internal successors, (255), 162 states have internal predecessors, (255), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:10:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-11-29 07:10:01,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:01,414 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:01,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:10:01,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:01,420 INFO L85 PathProgramCache]: Analyzing trace with hash 233067868, now seen corresponding path program 1 times [2023-11-29 07:10:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:01,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245075251] [2023-11-29 07:10:01,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:01,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:10:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:01,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:10:01,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 07:10:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:03,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:10:04,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 3074 proven. 0 refuted. 0 times theorem prover too weak. 7730 trivial. 0 not checked. [2023-11-29 07:10:04,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:10:04,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:04,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245075251] [2023-11-29 07:10:04,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245075251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:10:04,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:10:04,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:10:04,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780172398] [2023-11-29 07:10:04,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:10:04,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:10:04,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:10:04,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:10:04,128 INFO L87 Difference]: Start difference. First operand has 238 states, 161 states have (on average 1.5838509316770186) internal successors, (255), 162 states have internal predecessors, (255), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:10:06,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:11,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:11,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:11,717 INFO L93 Difference]: Finished difference Result 473 states and 878 transitions. [2023-11-29 07:10:12,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:10:12,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 477 [2023-11-29 07:10:12,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:12,014 INFO L225 Difference]: With dead ends: 473 [2023-11-29 07:10:12,015 INFO L226 Difference]: Without dead ends: 236 [2023-11-29 07:10:12,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 476 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 07:10:12,022 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:12,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 393 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2023-11-29 07:10:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-29 07:10:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2023-11-29 07:10:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 160 states have (on average 1.55) internal successors, (248), 160 states have internal predecessors, (248), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:10:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 396 transitions. [2023-11-29 07:10:12,082 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 396 transitions. Word has length 477 [2023-11-29 07:10:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:12,082 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 396 transitions. [2023-11-29 07:10:12,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:10:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 396 transitions. [2023-11-29 07:10:12,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-11-29 07:10:12,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:12,092 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:12,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:10:12,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:10:12,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:10:12,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:12,293 INFO L85 PathProgramCache]: Analyzing trace with hash 710428980, now seen corresponding path program 1 times [2023-11-29 07:10:12,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:12,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423834784] [2023-11-29 07:10:12,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:12,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:10:12,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:12,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:10:12,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 07:10:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:14,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:10:14,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:10:23,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:10:23,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:23,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423834784] [2023-11-29 07:10:23,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423834784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:10:23,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:10:23,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:10:23,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13830807] [2023-11-29 07:10:23,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:10:23,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:10:23,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:23,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:10:23,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:10:23,018 INFO L87 Difference]: Start difference. First operand 236 states and 396 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:10:27,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:33,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:38,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:42,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:47,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:51,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:55,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:10:55,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:55,945 INFO L93 Difference]: Finished difference Result 815 states and 1377 transitions. [2023-11-29 07:10:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:10:56,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 477 [2023-11-29 07:10:56,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:56,263 INFO L225 Difference]: With dead ends: 815 [2023-11-29 07:10:56,263 INFO L226 Difference]: Without dead ends: 580 [2023-11-29 07:10:56,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:10:56,266 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 629 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 149 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:56,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1166 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 17 Invalid, 7 Unknown, 0 Unchecked, 32.8s Time] [2023-11-29 07:10:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2023-11-29 07:10:56,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 467. [2023-11-29 07:10:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 316 states have (on average 1.5474683544303798) internal successors, (489), 316 states have internal predecessors, (489), 148 states have call successors, (148), 2 states have call predecessors, (148), 2 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2023-11-29 07:10:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 785 transitions. [2023-11-29 07:10:56,368 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 785 transitions. Word has length 477 [2023-11-29 07:10:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:56,371 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 785 transitions. [2023-11-29 07:10:56,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:10:56,371 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 785 transitions. [2023-11-29 07:10:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-11-29 07:10:56,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:56,377 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:56,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 07:10:56,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:10:56,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:10:56,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:56,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1271128758, now seen corresponding path program 1 times [2023-11-29 07:10:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:56,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013396932] [2023-11-29 07:10:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:10:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:56,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:10:56,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 07:10:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:59,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:10:59,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 3219 proven. 180 refuted. 0 times theorem prover too weak. 7405 trivial. 0 not checked. [2023-11-29 07:11:06,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 39 proven. 180 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:11:09,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:11:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013396932] [2023-11-29 07:11:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013396932] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:09,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:11:09,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 07:11:09,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261579286] [2023-11-29 07:11:09,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:09,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:11:09,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:11:09,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:11:09,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:11:09,745 INFO L87 Difference]: Start difference. First operand 467 states and 785 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2023-11-29 07:11:11,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:20,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:22,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:27,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:32,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:36,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:40,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:44,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:48,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:52,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:11:56,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:00,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:04,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:08,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:12,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:16,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:24,306 INFO L93 Difference]: Finished difference Result 1922 states and 3199 transitions. [2023-11-29 07:12:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 07:12:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) Word has length 477 [2023-11-29 07:12:24,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:24,323 INFO L225 Difference]: With dead ends: 1922 [2023-11-29 07:12:24,323 INFO L226 Difference]: Without dead ends: 1456 [2023-11-29 07:12:24,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 946 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:12:24,326 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 925 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 307 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:24,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1713 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 985 Invalid, 12 Unknown, 0 Unchecked, 72.6s Time] [2023-11-29 07:12:24,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2023-11-29 07:12:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 869. [2023-11-29 07:12:24,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 627 states have (on average 1.5853269537480064) internal successors, (994), 629 states have internal predecessors, (994), 235 states have call successors, (235), 6 states have call predecessors, (235), 6 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-29 07:12:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1464 transitions. [2023-11-29 07:12:24,555 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1464 transitions. Word has length 477 [2023-11-29 07:12:24,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:24,556 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1464 transitions. [2023-11-29 07:12:24,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2023-11-29 07:12:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1464 transitions. [2023-11-29 07:12:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-11-29 07:12:24,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:24,563 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:24,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 07:12:24,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:24,764 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:12:24,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash -115656652, now seen corresponding path program 1 times [2023-11-29 07:12:24,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:12:24,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861221833] [2023-11-29 07:12:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:24,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:24,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:12:24,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:12:24,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 07:12:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:27,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:12:27,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 2395 proven. 192 refuted. 0 times theorem prover too weak. 8217 trivial. 0 not checked. [2023-11-29 07:12:35,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 27 proven. 192 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:12:38,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:12:38,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861221833] [2023-11-29 07:12:38,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861221833] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:12:38,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:12:38,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 07:12:38,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973596237] [2023-11-29 07:12:38,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:12:38,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:12:38,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:12:38,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:12:38,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:12:38,351 INFO L87 Difference]: Start difference. First operand 869 states and 1464 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (138), 2 states have call predecessors, (138), 4 states have return successors, (139), 2 states have call predecessors, (139), 2 states have call successors, (139) [2023-11-29 07:12:44,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:50,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:54,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:58,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:12:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:58,166 INFO L93 Difference]: Finished difference Result 1749 states and 2922 transitions. [2023-11-29 07:12:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:12:58,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (138), 2 states have call predecessors, (138), 4 states have return successors, (139), 2 states have call predecessors, (139), 2 states have call successors, (139) Word has length 477 [2023-11-29 07:12:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:58,491 INFO L225 Difference]: With dead ends: 1749 [2023-11-29 07:12:58,491 INFO L226 Difference]: Without dead ends: 901 [2023-11-29 07:12:58,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 946 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:12:58,494 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 401 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 38 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:58,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 752 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 403 Invalid, 3 Unknown, 0 Unchecked, 19.4s Time] [2023-11-29 07:12:58,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-11-29 07:12:58,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 885. [2023-11-29 07:12:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 639 states have (on average 1.546165884194053) internal successors, (988), 641 states have internal predecessors, (988), 235 states have call successors, (235), 10 states have call predecessors, (235), 10 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-29 07:12:58,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1458 transitions. [2023-11-29 07:12:58,608 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1458 transitions. Word has length 477 [2023-11-29 07:12:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:58,609 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1458 transitions. [2023-11-29 07:12:58,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (138), 2 states have call predecessors, (138), 4 states have return successors, (139), 2 states have call predecessors, (139), 2 states have call successors, (139) [2023-11-29 07:12:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1458 transitions. [2023-11-29 07:12:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-29 07:12:58,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:58,615 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:58,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-29 07:12:58,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:58,816 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:12:58,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:58,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1204079723, now seen corresponding path program 1 times [2023-11-29 07:12:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:12:58,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136939039] [2023-11-29 07:12:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:12:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:12:58,819 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:12:58,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 07:13:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:01,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:13:01,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5281 proven. 258 refuted. 0 times theorem prover too weak. 5265 trivial. 0 not checked. [2023-11-29 07:13:13,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 87 proven. 132 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:13:15,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:13:15,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136939039] [2023-11-29 07:13:15,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136939039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:15,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:15,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2023-11-29 07:13:15,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448688602] [2023-11-29 07:13:15,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:15,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:13:15,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:13:15,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:13:15,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:13:15,917 INFO L87 Difference]: Start difference. First operand 885 states and 1458 transitions. Second operand has 11 states, 11 states have (on average 14.909090909090908) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (119), 4 states have call predecessors, (119), 4 states have call successors, (119) [2023-11-29 07:13:19,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:13:29,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:13:34,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:13:38,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:13:42,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:13:46,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:13:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:46,077 INFO L93 Difference]: Finished difference Result 1785 states and 2913 transitions. [2023-11-29 07:13:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:13:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.909090909090908) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (119), 4 states have call predecessors, (119), 4 states have call successors, (119) Word has length 478 [2023-11-29 07:13:46,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:46,411 INFO L225 Difference]: With dead ends: 1785 [2023-11-29 07:13:46,412 INFO L226 Difference]: Without dead ends: 925 [2023-11-29 07:13:46,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 959 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:13:46,415 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 435 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 91 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:46,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 769 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 391 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2023-11-29 07:13:46,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2023-11-29 07:13:46,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 909. [2023-11-29 07:13:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 657 states have (on average 1.5159817351598173) internal successors, (996), 659 states have internal predecessors, (996), 235 states have call successors, (235), 16 states have call predecessors, (235), 16 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-29 07:13:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1466 transitions. [2023-11-29 07:13:46,561 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1466 transitions. Word has length 478 [2023-11-29 07:13:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:46,562 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1466 transitions. [2023-11-29 07:13:46,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.909090909090908) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (119), 4 states have call predecessors, (119), 4 states have call successors, (119) [2023-11-29 07:13:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1466 transitions. [2023-11-29 07:13:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-29 07:13:46,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:46,568 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:13:46,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 07:13:46,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:13:46,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:13:46,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:46,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1544998705, now seen corresponding path program 1 times [2023-11-29 07:13:46,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:13:46,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493096790] [2023-11-29 07:13:46,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:46,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:13:46,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:13:46,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:13:46,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 07:13:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:49,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:13:49,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:00,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5893 proven. 246 refuted. 0 times theorem prover too weak. 4665 trivial. 0 not checked. [2023-11-29 07:14:00,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 186 proven. 249 refuted. 0 times theorem prover too weak. 10369 trivial. 0 not checked. [2023-11-29 07:14:05,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:14:05,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493096790] [2023-11-29 07:14:05,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493096790] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:14:05,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:14:05,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-29 07:14:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825843819] [2023-11-29 07:14:05,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:05,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:14:05,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:14:05,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:14:05,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:14:05,459 INFO L87 Difference]: Start difference. First operand 909 states and 1466 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 3 states have call successors, (138), 3 states have call predecessors, (138), 7 states have return successors, (139), 3 states have call predecessors, (139), 3 states have call successors, (139) [2023-11-29 07:14:09,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:10,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:20,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:26,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:30,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:34,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:38,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:42,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:14:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:42,464 INFO L93 Difference]: Finished difference Result 1823 states and 2911 transitions. [2023-11-29 07:14:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:14:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 3 states have call successors, (138), 3 states have call predecessors, (138), 7 states have return successors, (139), 3 states have call predecessors, (139), 3 states have call successors, (139) Word has length 478 [2023-11-29 07:14:42,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:42,814 INFO L225 Difference]: With dead ends: 1823 [2023-11-29 07:14:42,814 INFO L226 Difference]: Without dead ends: 939 [2023-11-29 07:14:42,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 943 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:14:42,818 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 594 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 123 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:42,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 964 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 592 Invalid, 6 Unknown, 0 Unchecked, 36.1s Time] [2023-11-29 07:14:42,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-11-29 07:14:42,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 915. [2023-11-29 07:14:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 659 states have (on average 1.4840667678300454) internal successors, (978), 661 states have internal predecessors, (978), 235 states have call successors, (235), 20 states have call predecessors, (235), 20 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-29 07:14:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1448 transitions. [2023-11-29 07:14:42,963 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1448 transitions. Word has length 478 [2023-11-29 07:14:42,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:42,964 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1448 transitions. [2023-11-29 07:14:42,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 3 states have call successors, (138), 3 states have call predecessors, (138), 7 states have return successors, (139), 3 states have call predecessors, (139), 3 states have call successors, (139) [2023-11-29 07:14:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1448 transitions. [2023-11-29 07:14:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-11-29 07:14:42,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:42,970 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:43,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 07:14:43,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:14:43,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:14:43,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:43,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1947050725, now seen corresponding path program 1 times [2023-11-29 07:14:43,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:14:43,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176324188] [2023-11-29 07:14:43,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:43,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:14:43,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:14:43,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:14:43,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 07:14:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:45,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:14:45,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5293 proven. 129 refuted. 0 times theorem prover too weak. 5382 trivial. 0 not checked. [2023-11-29 07:14:53,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:14:54,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:14:54,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176324188] [2023-11-29 07:14:54,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176324188] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:54,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:54,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-29 07:14:54,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998050844] [2023-11-29 07:14:54,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:14:54,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:14:54,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:14:54,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:14:54,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:14:54,240 INFO L87 Difference]: Start difference. First operand 915 states and 1448 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:15:00,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:00,405 INFO L93 Difference]: Finished difference Result 1825 states and 2874 transitions. [2023-11-29 07:15:00,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:15:00,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 479 [2023-11-29 07:15:00,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:00,746 INFO L225 Difference]: With dead ends: 1825 [2023-11-29 07:15:00,746 INFO L226 Difference]: Without dead ends: 939 [2023-11-29 07:15:00,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 958 GetRequests, 950 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:15:00,749 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 480 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 118 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:00,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 519 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 07:15:00,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-11-29 07:15:00,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 850. [2023-11-29 07:15:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 637 states have (on average 1.4929356357927785) internal successors, (951), 639 states have internal predecessors, (951), 190 states have call successors, (190), 22 states have call predecessors, (190), 22 states have return successors, (190), 188 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 07:15:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1331 transitions. [2023-11-29 07:15:00,837 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1331 transitions. Word has length 479 [2023-11-29 07:15:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:00,838 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1331 transitions. [2023-11-29 07:15:00,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:15:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1331 transitions. [2023-11-29 07:15:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-11-29 07:15:00,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:00,844 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:00,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 07:15:01,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:01,044 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:15:01,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:01,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1874664167, now seen corresponding path program 1 times [2023-11-29 07:15:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:15:01,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719480673] [2023-11-29 07:15:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:01,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:01,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:15:01,047 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:15:01,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 07:15:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:03,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:15:03,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4545 proven. 63 refuted. 0 times theorem prover too weak. 6196 trivial. 0 not checked. [2023-11-29 07:15:07,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 156 proven. 63 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:15:10,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:15:10,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719480673] [2023-11-29 07:15:10,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719480673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:15:10,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:15:10,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 07:15:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136585598] [2023-11-29 07:15:10,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:10,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:15:10,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:15:10,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:15:10,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:15:10,182 INFO L87 Difference]: Start difference. First operand 850 states and 1331 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-29 07:15:14,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:15,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:25,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:29,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:33,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:33,586 INFO L93 Difference]: Finished difference Result 1711 states and 2660 transitions. [2023-11-29 07:15:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:15:33,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 479 [2023-11-29 07:15:33,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:33,919 INFO L225 Difference]: With dead ends: 1711 [2023-11-29 07:15:33,919 INFO L226 Difference]: Without dead ends: 890 [2023-11-29 07:15:33,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 950 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:15:33,921 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 412 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 120 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:33,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 750 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 380 Invalid, 4 Unknown, 0 Unchecked, 23.0s Time] [2023-11-29 07:15:33,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-11-29 07:15:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 858. [2023-11-29 07:15:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 643 states have (on average 1.4805598755832037) internal successors, (952), 645 states have internal predecessors, (952), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 188 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 07:15:34,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1332 transitions. [2023-11-29 07:15:34,012 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1332 transitions. Word has length 479 [2023-11-29 07:15:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:34,012 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1332 transitions. [2023-11-29 07:15:34,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-29 07:15:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1332 transitions. [2023-11-29 07:15:34,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-11-29 07:15:34,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:34,016 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:34,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 07:15:34,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:34,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:15:34,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1365191077, now seen corresponding path program 1 times [2023-11-29 07:15:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:15:34,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683406010] [2023-11-29 07:15:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:34,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:34,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:15:34,219 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:15:34,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 07:15:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:36,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:15:36,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:15:46,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:15:46,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:15:46,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683406010] [2023-11-29 07:15:46,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683406010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:15:46,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:15:46,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:15:46,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172888973] [2023-11-29 07:15:46,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:15:46,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:15:46,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:15:46,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:15:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:15:46,850 INFO L87 Difference]: Start difference. First operand 858 states and 1332 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:15:52,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:15:52,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:52,885 INFO L93 Difference]: Finished difference Result 1687 states and 2624 transitions. [2023-11-29 07:15:53,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:15:53,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 479 [2023-11-29 07:15:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:53,220 INFO L225 Difference]: With dead ends: 1687 [2023-11-29 07:15:53,220 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 07:15:53,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 477 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 07:15:53,223 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 146 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:53,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 373 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 07:15:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 07:15:53,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2023-11-29 07:15:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 643 states have (on average 1.4572317262830483) internal successors, (937), 645 states have internal predecessors, (937), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 188 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 07:15:53,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1317 transitions. [2023-11-29 07:15:53,330 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1317 transitions. Word has length 479 [2023-11-29 07:15:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:53,331 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1317 transitions. [2023-11-29 07:15:53,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:15:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1317 transitions. [2023-11-29 07:15:53,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-11-29 07:15:53,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:53,337 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:53,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 07:15:53,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:53,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:15:53,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:53,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1006548185, now seen corresponding path program 1 times [2023-11-29 07:15:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:15:53,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97622911] [2023-11-29 07:15:53,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:53,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:53,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:15:53,540 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:15:53,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 07:15:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:56,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:15:56,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4825 proven. 147 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-11-29 07:16:03,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:05,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:16:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97622911] [2023-11-29 07:16:05,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97622911] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1646839656] [2023-11-29 07:16:05,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:05,576 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:16:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:16:05,577 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:16:05,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-29 07:16:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:07,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:16:07,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:16:18,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:16:18,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1646839656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:16:18,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:18,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-29 07:16:18,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650935993] [2023-11-29 07:16:18,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:16:18,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:16:18,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:16:18,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:16:18,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:16:18,072 INFO L87 Difference]: Start difference. First operand 858 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:16:20,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:16:22,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:16:27,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:16:32,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:16:36,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:16:39,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:16:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:39,370 INFO L93 Difference]: Finished difference Result 2516 states and 3871 transitions. [2023-11-29 07:16:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:16:39,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 479 [2023-11-29 07:16:39,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:39,382 INFO L225 Difference]: With dead ends: 2516 [2023-11-29 07:16:39,382 INFO L226 Difference]: Without dead ends: 1687 [2023-11-29 07:16:39,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1023 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:16:39,384 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 130 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:39,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 735 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2023-11-29 07:16:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2023-11-29 07:16:39,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1527. [2023-11-29 07:16:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1146 states have (on average 1.4458987783595114) internal successors, (1657), 1148 states have internal predecessors, (1657), 338 states have call successors, (338), 42 states have call predecessors, (338), 42 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2023-11-29 07:16:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2333 transitions. [2023-11-29 07:16:39,632 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2333 transitions. Word has length 479 [2023-11-29 07:16:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:39,633 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 2333 transitions. [2023-11-29 07:16:39,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:16:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2333 transitions. [2023-11-29 07:16:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-11-29 07:16:39,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:39,639 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:39,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 07:16:39,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-11-29 07:16:40,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:16:40,060 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:16:40,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:40,060 INFO L85 PathProgramCache]: Analyzing trace with hash 987596521, now seen corresponding path program 1 times [2023-11-29 07:16:40,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:16:40,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040035389] [2023-11-29 07:16:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:40,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:16:40,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:16:40,062 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:16:40,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 07:16:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:42,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:16:42,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4825 proven. 147 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-11-29 07:16:50,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:52,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:16:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040035389] [2023-11-29 07:16:52,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040035389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [148404292] [2023-11-29 07:16:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:52,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:16:52,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:16:52,327 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:16:52,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-29 07:16:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:58,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:16:58,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-11-29 07:16:59,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:16:59,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [148404292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:16:59,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:59,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 07:16:59,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979113316] [2023-11-29 07:16:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:16:59,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:16:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:16:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:16:59,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:16:59,723 INFO L87 Difference]: Start difference. First operand 1527 states and 2333 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:17:05,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:09,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:13,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:17,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:17,605 INFO L93 Difference]: Finished difference Result 4523 states and 6919 transitions. [2023-11-29 07:17:17,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:17:17,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 479 [2023-11-29 07:17:17,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:17,620 INFO L225 Difference]: With dead ends: 4523 [2023-11-29 07:17:17,620 INFO L226 Difference]: Without dead ends: 3025 [2023-11-29 07:17:17,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1023 GetRequests, 1016 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:17:17,623 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 339 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:17,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1011 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2023-11-29 07:17:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2023-11-29 07:17:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2027. [2023-11-29 07:17:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1646 states have (on average 1.5024301336573511) internal successors, (2473), 1648 states have internal predecessors, (2473), 338 states have call successors, (338), 42 states have call predecessors, (338), 42 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2023-11-29 07:17:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3149 transitions. [2023-11-29 07:17:17,953 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3149 transitions. Word has length 479 [2023-11-29 07:17:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:17,954 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 3149 transitions. [2023-11-29 07:17:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-11-29 07:17:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3149 transitions. [2023-11-29 07:17:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2023-11-29 07:17:17,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:17,960 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:18,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 07:17:18,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-11-29 07:17:18,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:17:18,372 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:17:18,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash 506516263, now seen corresponding path program 1 times [2023-11-29 07:17:18,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:17:18,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424868984] [2023-11-29 07:17:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:18,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:17:18,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:17:18,374 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:17:18,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 07:17:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:20,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:17:20,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 3219 proven. 180 refuted. 0 times theorem prover too weak. 7405 trivial. 0 not checked. [2023-11-29 07:17:30,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 39 proven. 180 refuted. 0 times theorem prover too weak. 10585 trivial. 0 not checked. [2023-11-29 07:17:33,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:17:33,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424868984] [2023-11-29 07:17:33,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424868984] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:17:33,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:17:33,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 07:17:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740430758] [2023-11-29 07:17:33,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:33,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:17:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:17:33,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:17:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:17:33,860 INFO L87 Difference]: Start difference. First operand 2027 states and 3149 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2023-11-29 07:17:43,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:46,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:51,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:55,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:17:59,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:18:10,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:18:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:10,446 INFO L93 Difference]: Finished difference Result 3606 states and 5511 transitions. [2023-11-29 07:18:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:18:10,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) Word has length 479 [2023-11-29 07:18:10,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:10,457 INFO L225 Difference]: With dead ends: 3606 [2023-11-29 07:18:10,457 INFO L226 Difference]: Without dead ends: 1608 [2023-11-29 07:18:10,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 949 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:18:10,461 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 753 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 241 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:10,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1308 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 907 Invalid, 3 Unknown, 0 Unchecked, 35.1s Time] [2023-11-29 07:18:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2023-11-29 07:18:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1402. [2023-11-29 07:18:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1036 states have (on average 1.4131274131274132) internal successors, (1464), 1037 states have internal predecessors, (1464), 325 states have call successors, (325), 40 states have call predecessors, (325), 40 states have return successors, (325), 324 states have call predecessors, (325), 325 states have call successors, (325) [2023-11-29 07:18:10,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2114 transitions. [2023-11-29 07:18:10,720 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2114 transitions. Word has length 479 [2023-11-29 07:18:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:10,721 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 2114 transitions. [2023-11-29 07:18:10,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2023-11-29 07:18:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2114 transitions. [2023-11-29 07:18:10,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2023-11-29 07:18:10,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:10,727 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:10,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 07:18:10,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:18:10,931 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:18:10,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:10,931 INFO L85 PathProgramCache]: Analyzing trace with hash -824889580, now seen corresponding path program 1 times [2023-11-29 07:18:10,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:18:10,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715364943] [2023-11-29 07:18:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:10,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:18:10,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:18:10,933 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:18:10,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 07:18:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:13,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:18:13,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4825 proven. 147 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-11-29 07:18:22,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:24,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:18:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715364943] [2023-11-29 07:18:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715364943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [993347200] [2023-11-29 07:18:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:24,647 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:18:24,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:18:24,648 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:18:24,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-29 07:18:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:32,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:18:32,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4825 proven. 147 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-11-29 07:18:41,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:42,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [993347200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:42,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:18:42,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-11-29 07:18:42,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500624645] [2023-11-29 07:18:42,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:42,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:18:42,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:18:42,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:18:42,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:18:42,784 INFO L87 Difference]: Start difference. First operand 1402 states and 2114 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:18:55,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:18:59,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:19:03,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:19:07,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:19:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:19:07,820 INFO L93 Difference]: Finished difference Result 2780 states and 4150 transitions. [2023-11-29 07:19:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:19:08,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 481 [2023-11-29 07:19:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:19:08,200 INFO L225 Difference]: With dead ends: 2780 [2023-11-29 07:19:08,200 INFO L226 Difference]: Without dead ends: 1438 [2023-11-29 07:19:08,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1093 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:19:08,203 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 214 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 18 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:19:08,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 907 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 482 Invalid, 4 Unknown, 0 Unchecked, 24.2s Time] [2023-11-29 07:19:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2023-11-29 07:19:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1390. [2023-11-29 07:19:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1019 states have (on average 1.3729146221786064) internal successors, (1399), 1020 states have internal predecessors, (1399), 325 states have call successors, (325), 45 states have call predecessors, (325), 45 states have return successors, (325), 324 states have call predecessors, (325), 325 states have call successors, (325) [2023-11-29 07:19:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2049 transitions. [2023-11-29 07:19:08,454 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2049 transitions. Word has length 481 [2023-11-29 07:19:08,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:19:08,455 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 2049 transitions. [2023-11-29 07:19:08,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 2 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 07:19:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2049 transitions. [2023-11-29 07:19:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2023-11-29 07:19:08,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:19:08,461 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:08,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 07:19:08,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-11-29 07:19:08,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:19:08,861 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:19:08,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:19:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1564882233, now seen corresponding path program 1 times [2023-11-29 07:19:08,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:19:08,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131121708] [2023-11-29 07:19:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:08,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:19:08,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:19:08,864 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:19:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 07:19:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:19:11,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:19:11,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4347 proven. 522 refuted. 0 times theorem prover too weak. 5935 trivial. 0 not checked. [2023-11-29 07:19:54,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:20:01,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:20:01,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131121708] [2023-11-29 07:20:01,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131121708] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:20:01,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [219721559] [2023-11-29 07:20:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:20:01,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:20:01,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:20:01,041 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:20:01,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8740b18b-86cc-43a2-9d44-3a74d8907204/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-29 07:20:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:20:09,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:20:09,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:20:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 4353 proven. 159 refuted. 0 times theorem prover too weak. 6292 trivial. 0 not checked. [2023-11-29 07:20:31,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:20:32,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [219721559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:20:32,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:20:32,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 16 [2023-11-29 07:20:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243190256] [2023-11-29 07:20:32,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:20:32,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 07:20:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:20:32,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 07:20:32,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:20:32,286 INFO L87 Difference]: Start difference. First operand 1390 states and 2049 transitions. Second operand has 17 states, 17 states have (on average 11.705882352941176) internal successors, (199), 15 states have internal predecessors, (199), 5 states have call successors, (146), 5 states have call predecessors, (146), 7 states have return successors, (147), 5 states have call predecessors, (147), 5 states have call successors, (147) [2023-11-29 07:20:55,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 07:21:00,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:03,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:09,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:13,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:17,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:21,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:25,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]