./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl --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 e2827751d54d31813193a5e232b3cfb1b986bd1ad92439dc43412e6cd0eff047 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:06,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:07,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:33:07,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:07,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:07,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:07,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:07,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:07,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:07,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:07,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:07,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:07,083 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:07,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:07,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:07,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:33:07,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:07,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:33:07,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:07,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:07,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:07,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:07,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:33:07,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:07,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:07,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:07,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:07,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:07,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:07,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:07,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:07,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:07,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:07,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:07,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:07,096 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:07,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:07,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:07,098 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:07,099 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_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2827751d54d31813193a5e232b3cfb1b986bd1ad92439dc43412e6cd0eff047 [2023-11-12 02:33:07,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:07,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:07,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:07,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:07,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:07,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i [2023-11-12 02:33:10,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:10,681 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:10,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i [2023-11-12 02:33:10,705 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/data/a7291381b/3dcc8f9d52524a0bb58bc69e9673bb10/FLAG3625cf4b5 [2023-11-12 02:33:10,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/data/a7291381b/3dcc8f9d52524a0bb58bc69e9673bb10 [2023-11-12 02:33:10,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:10,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:10,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:10,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:10,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:10,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f77adf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10, skipping insertion in model container [2023-11-12 02:33:10,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:11,017 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_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i[916,929] [2023-11-12 02:33:11,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:11,173 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:11,185 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_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i[916,929] [2023-11-12 02:33:11,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:11,286 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:11,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11 WrapperNode [2023-11-12 02:33:11,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:11,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:11,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:11,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:11,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,393 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372 [2023-11-12 02:33:11,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:11,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:11,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:11,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:11,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:11,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:11,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:11,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:11,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (1/1) ... [2023-11-12 02:33:11,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:11,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:11,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:11,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:33:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:33:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:11,702 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:11,705 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:12,545 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:12,560 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:12,560 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:33:12,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:12 BoogieIcfgContainer [2023-11-12 02:33:12,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:12,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:12,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:12,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:12,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:10" (1/3) ... [2023-11-12 02:33:12,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e1fc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:12, skipping insertion in model container [2023-11-12 02:33:12,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:11" (2/3) ... [2023-11-12 02:33:12,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e1fc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:12, skipping insertion in model container [2023-11-12 02:33:12,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:12" (3/3) ... [2023-11-12 02:33:12,576 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-35.i [2023-11-12 02:33:12,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:12,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:33:12,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:12,671 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;@6f069e7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:12,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:33:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 92 states have (on average 1.434782608695652) internal successors, (132), 93 states have internal predecessors, (132), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 02:33:12,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-12 02:33:12,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:12,706 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:12,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:12,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:12,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1664640065, now seen corresponding path program 1 times [2023-11-12 02:33:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:12,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795718281] [2023-11-12 02:33:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:12,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:13,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:13,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795718281] [2023-11-12 02:33:13,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:33:13,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851316567] [2023-11-12 02:33:13,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:13,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:13,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:13,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:13,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:33:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:13,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:33:13,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:13,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2023-11-12 02:33:13,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:13,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851316567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:13,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:13,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:33:13,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835832602] [2023-11-12 02:33:13,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:13,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:33:13,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:13,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:33:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:33:13,664 INFO L87 Difference]: Start difference. First operand has 155 states, 92 states have (on average 1.434782608695652) internal successors, (132), 93 states have internal predecessors, (132), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2023-11-12 02:33:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:13,719 INFO L93 Difference]: Finished difference Result 303 states and 558 transitions. [2023-11-12 02:33:13,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:33:13,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) Word has length 368 [2023-11-12 02:33:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:13,732 INFO L225 Difference]: With dead ends: 303 [2023-11-12 02:33:13,732 INFO L226 Difference]: Without dead ends: 151 [2023-11-12 02:33:13,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:33:13,742 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:13,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:33:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-12 02:33:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-12 02:33:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 89 states have (on average 1.404494382022472) internal successors, (125), 89 states have internal predecessors, (125), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 02:33:13,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 245 transitions. [2023-11-12 02:33:13,888 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 245 transitions. Word has length 368 [2023-11-12 02:33:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:13,891 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 245 transitions. [2023-11-12 02:33:13,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2023-11-12 02:33:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 245 transitions. [2023-11-12 02:33:13,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-12 02:33:13,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:13,912 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:13,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:33:14,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:33:14,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:14,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1923110471, now seen corresponding path program 1 times [2023-11-12 02:33:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:14,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490642698] [2023-11-12 02:33:14,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:14,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:14,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:14,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111901700] [2023-11-12 02:33:14,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:14,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:14,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:14,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:14,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:33:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:14,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:33:14,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-12 02:33:14,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:14,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:14,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490642698] [2023-11-12 02:33:14,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:14,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111901700] [2023-11-12 02:33:14,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111901700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:14,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:14,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:33:14,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535291230] [2023-11-12 02:33:14,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:14,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:14,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:14,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:14,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:14,788 INFO L87 Difference]: Start difference. First operand 151 states and 245 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:14,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:14,831 INFO L93 Difference]: Finished difference Result 299 states and 487 transitions. [2023-11-12 02:33:14,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:14,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 368 [2023-11-12 02:33:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:14,837 INFO L225 Difference]: With dead ends: 299 [2023-11-12 02:33:14,838 INFO L226 Difference]: Without dead ends: 151 [2023-11-12 02:33:14,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:14,842 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 18 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:14,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 464 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:33:14,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-12 02:33:14,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-12 02:33:14,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 02:33:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 244 transitions. [2023-11-12 02:33:14,884 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 244 transitions. Word has length 368 [2023-11-12 02:33:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:14,890 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 244 transitions. [2023-11-12 02:33:14,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 244 transitions. [2023-11-12 02:33:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-12 02:33:14,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:14,901 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:14,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:15,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:15,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:15,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:15,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2121576405, now seen corresponding path program 1 times [2023-11-12 02:33:15,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:15,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717468398] [2023-11-12 02:33:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:15,258 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:15,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890780425] [2023-11-12 02:33:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:15,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:15,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:15,266 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:15,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:33:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:15,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:33:15,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-12 02:33:15,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:15,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:15,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717468398] [2023-11-12 02:33:15,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:15,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890780425] [2023-11-12 02:33:15,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890780425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:15,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:15,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:33:15,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637367162] [2023-11-12 02:33:15,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:15,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:33:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:33:15,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:15,705 INFO L87 Difference]: Start difference. First operand 151 states and 244 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:15,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:15,790 INFO L93 Difference]: Finished difference Result 384 states and 621 transitions. [2023-11-12 02:33:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:33:15,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 369 [2023-11-12 02:33:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:15,802 INFO L225 Difference]: With dead ends: 384 [2023-11-12 02:33:15,802 INFO L226 Difference]: Without dead ends: 236 [2023-11-12 02:33:15,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:33:15,807 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 130 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:15,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 475 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:33:15,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-12 02:33:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2023-11-12 02:33:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 150 states have (on average 1.44) internal successors, (216), 151 states have internal predecessors, (216), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-12 02:33:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 376 transitions. [2023-11-12 02:33:15,871 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 376 transitions. Word has length 369 [2023-11-12 02:33:15,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:15,873 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 376 transitions. [2023-11-12 02:33:15,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:15,874 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 376 transitions. [2023-11-12 02:33:15,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-12 02:33:15,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:15,878 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:15,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:16,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:16,086 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:16,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1987562899, now seen corresponding path program 1 times [2023-11-12 02:33:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:16,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77700284] [2023-11-12 02:33:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:16,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:16,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251667137] [2023-11-12 02:33:16,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:16,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:16,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:16,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:16,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:33:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:16,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:33:16,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-12 02:33:16,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:16,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:16,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77700284] [2023-11-12 02:33:16,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:16,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251667137] [2023-11-12 02:33:16,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251667137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:16,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:16,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:33:16,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336495642] [2023-11-12 02:33:16,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:16,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:33:16,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:16,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:33:16,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:16,620 INFO L87 Difference]: Start difference. First operand 233 states and 376 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:16,807 INFO L93 Difference]: Finished difference Result 593 states and 931 transitions. [2023-11-12 02:33:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:33:16,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 369 [2023-11-12 02:33:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:16,814 INFO L225 Difference]: With dead ends: 593 [2023-11-12 02:33:16,814 INFO L226 Difference]: Without dead ends: 363 [2023-11-12 02:33:16,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:33:16,817 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 93 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:16,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 933 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:33:16,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-12 02:33:16,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 313. [2023-11-12 02:33:16,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 214 states have (on average 1.4205607476635513) internal successors, (304), 217 states have internal predecessors, (304), 94 states have call successors, (94), 4 states have call predecessors, (94), 4 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-12 02:33:16,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 492 transitions. [2023-11-12 02:33:16,857 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 492 transitions. Word has length 369 [2023-11-12 02:33:16,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:16,858 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 492 transitions. [2023-11-12 02:33:16,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 492 transitions. [2023-11-12 02:33:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-12 02:33:16,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:16,863 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:16,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:17,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:17,071 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:17,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:17,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1627346027, now seen corresponding path program 1 times [2023-11-12 02:33:17,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:17,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305536139] [2023-11-12 02:33:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:17,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:17,135 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:17,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780597208] [2023-11-12 02:33:17,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:17,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:17,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:17,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:17,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:33:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:17,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:33:17,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3599 proven. 87 refuted. 0 times theorem prover too weak. 3394 trivial. 0 not checked. [2023-11-12 02:33:17,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:33:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 90 proven. 87 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2023-11-12 02:33:18,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:18,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305536139] [2023-11-12 02:33:18,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:18,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780597208] [2023-11-12 02:33:18,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780597208] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:33:18,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:33:18,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-12 02:33:18,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330572377] [2023-11-12 02:33:18,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:33:18,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:33:18,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:33:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:33:18,026 INFO L87 Difference]: Start difference. First operand 313 states and 492 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90) [2023-11-12 02:33:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:18,585 INFO L93 Difference]: Finished difference Result 637 states and 996 transitions. [2023-11-12 02:33:18,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:33:18,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90) Word has length 369 [2023-11-12 02:33:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:18,590 INFO L225 Difference]: With dead ends: 637 [2023-11-12 02:33:18,591 INFO L226 Difference]: Without dead ends: 327 [2023-11-12 02:33:18,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:33:18,593 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 241 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:18,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 728 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:33:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-12 02:33:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2023-11-12 02:33:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 219 states have (on average 1.4109589041095891) internal successors, (309), 222 states have internal predecessors, (309), 94 states have call successors, (94), 5 states have call predecessors, (94), 5 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-12 02:33:18,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 497 transitions. [2023-11-12 02:33:18,642 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 497 transitions. Word has length 369 [2023-11-12 02:33:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:18,643 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 497 transitions. [2023-11-12 02:33:18,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90) [2023-11-12 02:33:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 497 transitions. [2023-11-12 02:33:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-12 02:33:18,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:18,649 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:18,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 02:33:18,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:18,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:18,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:18,858 INFO L85 PathProgramCache]: Analyzing trace with hash 77157832, now seen corresponding path program 1 times [2023-11-12 02:33:18,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:18,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111509431] [2023-11-12 02:33:18,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:18,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:18,928 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:18,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521426991] [2023-11-12 02:33:18,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:18,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:18,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:18,930 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:18,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:33:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:19,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:33:19,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3579 proven. 81 refuted. 0 times theorem prover too weak. 3420 trivial. 0 not checked. [2023-11-12 02:33:19,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:33:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 96 proven. 81 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2023-11-12 02:33:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111509431] [2023-11-12 02:33:19,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521426991] [2023-11-12 02:33:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521426991] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:33:19,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:33:19,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-12 02:33:19,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135186093] [2023-11-12 02:33:19,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:33:19,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:33:19,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:19,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:33:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:33:19,823 INFO L87 Difference]: Start difference. First operand 319 states and 497 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 3 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) [2023-11-12 02:33:20,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:20,484 INFO L93 Difference]: Finished difference Result 647 states and 1002 transitions. [2023-11-12 02:33:20,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:33:20,485 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 3 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) Word has length 370 [2023-11-12 02:33:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:20,489 INFO L225 Difference]: With dead ends: 647 [2023-11-12 02:33:20,489 INFO L226 Difference]: Without dead ends: 331 [2023-11-12 02:33:20,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:33:20,492 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 235 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:20,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 530 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:33:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-12 02:33:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 321. [2023-11-12 02:33:20,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 220 states have (on average 1.3909090909090909) internal successors, (306), 223 states have internal predecessors, (306), 94 states have call successors, (94), 6 states have call predecessors, (94), 6 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-12 02:33:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 494 transitions. [2023-11-12 02:33:20,541 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 494 transitions. Word has length 370 [2023-11-12 02:33:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:20,542 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 494 transitions. [2023-11-12 02:33:20,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 3 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) [2023-11-12 02:33:20,543 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 494 transitions. [2023-11-12 02:33:20,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-12 02:33:20,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:20,547 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:20,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:20,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:33:20,756 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:20,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:20,756 INFO L85 PathProgramCache]: Analyzing trace with hash -432315258, now seen corresponding path program 1 times [2023-11-12 02:33:20,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:20,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230161515] [2023-11-12 02:33:20,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:20,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:20,816 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:20,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811067464] [2023-11-12 02:33:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:20,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:20,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:20,818 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:20,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:33:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:33:21,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3740 proven. 165 refuted. 0 times theorem prover too weak. 3175 trivial. 0 not checked. [2023-11-12 02:33:21,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:33:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 183 proven. 168 refuted. 0 times theorem prover too weak. 6729 trivial. 0 not checked. [2023-11-12 02:33:22,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:22,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230161515] [2023-11-12 02:33:22,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:22,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811067464] [2023-11-12 02:33:22,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811067464] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:33:22,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:33:22,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-12 02:33:22,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229323067] [2023-11-12 02:33:22,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:33:22,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:33:22,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:33:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:33:22,528 INFO L87 Difference]: Start difference. First operand 321 states and 494 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 5 states have call successors, (89), 3 states have call predecessors, (89), 7 states have return successors, (90), 5 states have call predecessors, (90), 5 states have call successors, (90) [2023-11-12 02:33:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:23,235 INFO L93 Difference]: Finished difference Result 651 states and 996 transitions. [2023-11-12 02:33:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:33:23,236 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 5 states have call successors, (89), 3 states have call predecessors, (89), 7 states have return successors, (90), 5 states have call predecessors, (90), 5 states have call successors, (90) Word has length 370 [2023-11-12 02:33:23,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:23,240 INFO L225 Difference]: With dead ends: 651 [2023-11-12 02:33:23,240 INFO L226 Difference]: Without dead ends: 333 [2023-11-12 02:33:23,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 724 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:33:23,242 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 236 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:23,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 653 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:33:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-12 02:33:23,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 323. [2023-11-12 02:33:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 221 states have (on average 1.3800904977375565) internal successors, (305), 224 states have internal predecessors, (305), 94 states have call successors, (94), 7 states have call predecessors, (94), 7 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-12 02:33:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 493 transitions. [2023-11-12 02:33:23,276 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 493 transitions. Word has length 370 [2023-11-12 02:33:23,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:23,277 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 493 transitions. [2023-11-12 02:33:23,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 5 states have call successors, (89), 3 states have call predecessors, (89), 7 states have return successors, (90), 5 states have call predecessors, (90), 5 states have call successors, (90) [2023-11-12 02:33:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 493 transitions. [2023-11-12 02:33:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-12 02:33:23,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:23,281 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:23,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:23,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 02:33:23,490 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:23,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash 808109960, now seen corresponding path program 1 times [2023-11-12 02:33:23,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:23,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937183042] [2023-11-12 02:33:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:23,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:23,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377795170] [2023-11-12 02:33:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:23,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:23,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:23,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:23,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:33:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:23,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:33:23,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:23,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-12 02:33:23,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:23,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937183042] [2023-11-12 02:33:23,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377795170] [2023-11-12 02:33:23,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377795170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:23,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:23,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:33:23,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046840304] [2023-11-12 02:33:23,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:23,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:23,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:23,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:23,953 INFO L87 Difference]: Start difference. First operand 323 states and 493 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:24,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:24,317 INFO L93 Difference]: Finished difference Result 949 states and 1450 transitions. [2023-11-12 02:33:24,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:33:24,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 371 [2023-11-12 02:33:24,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:24,326 INFO L225 Difference]: With dead ends: 949 [2023-11-12 02:33:24,326 INFO L226 Difference]: Without dead ends: 629 [2023-11-12 02:33:24,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:24,329 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 276 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:24,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 972 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:33:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2023-11-12 02:33:24,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 349. [2023-11-12 02:33:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 247 states have (on average 1.3967611336032388) internal successors, (345), 250 states have internal predecessors, (345), 94 states have call successors, (94), 7 states have call predecessors, (94), 7 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-12 02:33:24,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 533 transitions. [2023-11-12 02:33:24,391 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 533 transitions. Word has length 371 [2023-11-12 02:33:24,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:24,391 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 533 transitions. [2023-11-12 02:33:24,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:24,392 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 533 transitions. [2023-11-12 02:33:24,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-12 02:33:24,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:24,395 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:24,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:24,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 02:33:24,603 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:24,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:24,604 INFO L85 PathProgramCache]: Analyzing trace with hash 386217028, now seen corresponding path program 1 times [2023-11-12 02:33:24,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:24,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125578087] [2023-11-12 02:33:24,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:24,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:24,676 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:24,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483071111] [2023-11-12 02:33:24,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:24,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:24,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:24,681 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:24,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:33:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:25,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:33:25,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-12 02:33:25,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:25,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:25,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125578087] [2023-11-12 02:33:25,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:25,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483071111] [2023-11-12 02:33:25,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483071111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:25,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:25,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:33:25,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078485572] [2023-11-12 02:33:25,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:25,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:33:25,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:33:25,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:33:25,081 INFO L87 Difference]: Start difference. First operand 349 states and 533 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:25,694 INFO L93 Difference]: Finished difference Result 1035 states and 1570 transitions. [2023-11-12 02:33:25,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:33:25,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 371 [2023-11-12 02:33:25,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:25,704 INFO L225 Difference]: With dead ends: 1035 [2023-11-12 02:33:25,704 INFO L226 Difference]: Without dead ends: 689 [2023-11-12 02:33:25,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:33:25,709 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 305 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:25,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1374 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:33:25,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-12 02:33:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 355. [2023-11-12 02:33:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 253 states have (on average 1.3952569169960474) internal successors, (353), 256 states have internal predecessors, (353), 94 states have call successors, (94), 7 states have call predecessors, (94), 7 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-12 02:33:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 541 transitions. [2023-11-12 02:33:25,764 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 541 transitions. Word has length 371 [2023-11-12 02:33:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:25,765 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 541 transitions. [2023-11-12 02:33:25,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 541 transitions. [2023-11-12 02:33:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-12 02:33:25,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:25,769 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:25,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:25,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-12 02:33:25,977 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:25,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1066275398, now seen corresponding path program 1 times [2023-11-12 02:33:25,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:25,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307845931] [2023-11-12 02:33:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:25,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:26,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592118701] [2023-11-12 02:33:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:26,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:26,037 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:26,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:33:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:26,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:33:26,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-12 02:33:26,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:33:26,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:26,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307845931] [2023-11-12 02:33:26,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:33:26,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592118701] [2023-11-12 02:33:26,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592118701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:26,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:26,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:33:26,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329062414] [2023-11-12 02:33:26,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:26,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:33:26,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:26,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:33:26,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:33:26,948 INFO L87 Difference]: Start difference. First operand 355 states and 541 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:27,280 INFO L93 Difference]: Finished difference Result 1121 states and 1704 transitions. [2023-11-12 02:33:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:33:27,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 371 [2023-11-12 02:33:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:27,288 INFO L225 Difference]: With dead ends: 1121 [2023-11-12 02:33:27,289 INFO L226 Difference]: Without dead ends: 769 [2023-11-12 02:33:27,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:33:27,291 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 197 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:27,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 703 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:33:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-11-12 02:33:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 705. [2023-11-12 02:33:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 502 states have (on average 1.3944223107569722) internal successors, (700), 508 states have internal predecessors, (700), 188 states have call successors, (188), 14 states have call predecessors, (188), 14 states have return successors, (188), 182 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-12 02:33:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1076 transitions. [2023-11-12 02:33:27,394 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1076 transitions. Word has length 371 [2023-11-12 02:33:27,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:27,395 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 1076 transitions. [2023-11-12 02:33:27,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2023-11-12 02:33:27,395 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1076 transitions. [2023-11-12 02:33:27,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-12 02:33:27,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:27,399 INFO L195 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:33:27,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:33:27,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:33:27,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:27,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:27,608 INFO L85 PathProgramCache]: Analyzing trace with hash -622668344, now seen corresponding path program 1 times [2023-11-12 02:33:27,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:27,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256915904] [2023-11-12 02:33:27,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:27,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:27,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:33:27,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630932630] [2023-11-12 02:33:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:27,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:33:27,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:27,663 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:33:27,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f94cb3ca-5014-4389-9fb8-5635bfe7db2c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:33:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:28,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 02:33:28,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:33:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 1667 proven. 39 refuted. 0 times theorem prover too weak. 5374 trivial. 0 not checked. [2023-11-12 02:33:28,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:33:34,898 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse63 (mod c_~var_1_51~0 256)) (.cse62 (mod c_~var_1_52~0 256))) (let ((.cse3 (+ .cse63 (* (- 1) .cse62))) (.cse2 (mod c_~var_1_50~0 256))) (let ((.cse7 (< 1 c_~var_1_35~0)) (.cse14 (< c_~var_1_35~0 2)) (.cse21 (forall ((v_z_55 Int)) (let ((.cse64 (mod v_z_55 .cse2))) (or (< .cse64 0) (< 255 v_z_55) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 (div .cse64 .cse3))))))) (.cse0 (< .cse62 (+ .cse63 1)))) (and (or .cse0 (forall ((v_z_55 Int)) (let ((.cse1 (div (mod v_z_55 .cse2) .cse3))) (or (< 255 v_z_55) (< 0 .cse1) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 .cse1)))))) (or .cse0 (and (forall ((v_z_7 Int)) (let ((.cse4 (mod v_z_7 .cse2))) (let ((.cse5 (div .cse4 .cse3))) (or (< 0 (+ .cse4 1)) (< 1 .cse5) (= (mod .cse4 .cse3) 0) (< 255 v_z_7) (< v_z_7 0) (< c_~var_1_35~0 .cse5))))) (or (forall ((v_z_7 Int)) (let ((.cse6 (mod v_z_7 .cse2))) (or (< 0 (+ .cse6 1)) (= (mod .cse6 .cse3) 0) (< 255 v_z_7) (< v_z_7 0) (< c_~var_1_35~0 (div .cse6 .cse3))))) .cse7))) (forall ((v_z_78 Int)) (let ((.cse8 (div (mod v_z_78 .cse2) .cse3))) (or (= .cse8 0) (< c_~var_1_35~0 (+ 2 .cse8)) (< 0 .cse8) (< v_z_78 0) (< 255 v_z_78)))) (or (forall ((v_z_54 Int)) (or (< 255 v_z_54) (< c_~var_1_35~0 (+ 2 (div (mod v_z_54 .cse2) .cse3))) (< v_z_54 0))) .cse7) (forall ((v_z_27 Int)) (let ((.cse10 (mod v_z_27 .cse2))) (let ((.cse9 (div .cse10 .cse3))) (or (< v_z_27 0) (< 255 v_z_27) (< c_~var_1_35~0 (+ .cse9 1)) (not (= (mod .cse10 .cse3) 0)) (< 0 .cse9))))) (or .cse7 (forall ((v_z_10 Int)) (let ((.cse11 (mod v_z_10 .cse2))) (or (< v_z_10 0) (< 255 v_z_10) (< 0 (+ .cse11 1)) (< c_~var_1_35~0 (+ 2 (div .cse11 .cse3))) (= (mod .cse11 .cse3) 0))))) (or (and (forall ((v_z_20 Int)) (let ((.cse12 (mod v_z_20 .cse2))) (or (< 255 v_z_20) (< 0 (div .cse12 .cse3)) (< v_z_20 0) (not (= (mod .cse12 .cse3) 0))))) (or (forall ((v_z_18 Int)) (let ((.cse13 (mod v_z_18 .cse2))) (or (< 0 (div .cse13 .cse3)) (< 255 v_z_18) (< v_z_18 0) (not (= (mod .cse13 .cse3) 0))))) .cse0)) .cse14) (or (forall ((v_z_62 Int)) (let ((.cse16 (mod v_z_62 .cse2))) (let ((.cse15 (div .cse16 .cse3))) (or (< 0 .cse15) (< 255 v_z_62) (< c_~var_1_35~0 (+ .cse15 2)) (not (= (mod .cse16 .cse3) 0)) (< v_z_62 0))))) .cse0) (or (forall ((v_z_10 Int)) (let ((.cse17 (mod v_z_10 .cse2))) (let ((.cse18 (div .cse17 .cse3))) (or (< v_z_10 0) (< 255 v_z_10) (< 0 (+ .cse17 1)) (< c_~var_1_35~0 (+ 2 .cse18)) (= (mod .cse17 .cse3) 0) (< 1 .cse18))))) .cse0) (or (forall ((v_z_15 Int)) (let ((.cse19 (div (mod v_z_15 .cse2) .cse3))) (or (< 255 v_z_15) (< v_z_15 0) (< c_~var_1_35~0 (+ 1 .cse19)) (< 0 .cse19)))) .cse0) (or (and (or (forall ((v_z_73 Int)) (or (< v_z_73 0) (< 255 v_z_73) (< c_~var_1_35~0 (+ (div (mod v_z_73 .cse2) .cse3) 2)))) .cse7) (forall ((v_z_75 Int)) (let ((.cse20 (div (mod v_z_75 .cse2) .cse3))) (or (< 255 v_z_75) (= .cse20 1) (< 1 .cse20) (< c_~var_1_35~0 (+ 2 .cse20)) (< v_z_75 0))))) .cse0) (or (and (or .cse0 (forall ((v_z_55 Int)) (or (< 255 v_z_55) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 (div (mod v_z_55 .cse2) .cse3)))))) .cse21) .cse7) (or .cse14 (and (or (forall ((v_z_88 Int)) (let ((.cse22 (mod v_z_88 .cse2))) (or (not (= (mod .cse22 .cse3) 0)) (< 255 v_z_88) (< v_z_88 0) (< 0 (div .cse22 .cse3))))) .cse0) (or (forall ((v_z_85 Int)) (let ((.cse24 (mod v_z_85 .cse2))) (let ((.cse23 (div .cse24 .cse3))) (or (= .cse23 1) (< 1 .cse23) (not (= (mod .cse24 .cse3) 0)) (< v_z_85 0) (< 255 v_z_85))))) .cse0) (or .cse0 (forall ((v_z_82 Int)) (or (< 0 (div (mod v_z_82 .cse2) .cse3)) (< 255 v_z_82) (< v_z_82 0)))) (forall ((v_z_88 Int)) (let ((.cse25 (mod v_z_88 .cse2))) (let ((.cse26 (div .cse25 .cse3))) (or (not (= (mod .cse25 .cse3) 0)) (= .cse26 0) (< 255 v_z_88) (< v_z_88 0) (< 0 .cse26))))) (or (forall ((v_z_80 Int)) (let ((.cse27 (div (mod v_z_80 .cse2) .cse3))) (or (< v_z_80 0) (< 1 .cse27) (= .cse27 1) (< 255 v_z_80)))) .cse0) (or (forall ((v_z_83 Int)) (or (< (mod v_z_83 .cse2) 0) (< v_z_83 0) (< 255 v_z_83))) .cse0) (forall ((v_z_82 Int)) (let ((.cse28 (div (mod v_z_82 .cse2) .cse3))) (or (= .cse28 0) (< 0 .cse28) (< 255 v_z_82) (< v_z_82 0)))) (forall ((v_z_83 Int)) (let ((.cse29 (mod v_z_83 .cse2))) (let ((.cse30 (div .cse29 .cse3))) (or (< .cse29 0) (< 0 .cse30) (< v_z_83 0) (< 255 v_z_83) (= .cse30 0))))))) (forall ((v_z_55 Int)) (let ((.cse31 (mod v_z_55 .cse2))) (let ((.cse32 (div .cse31 .cse3))) (or (< .cse31 0) (< 255 v_z_55) (= .cse32 0) (< 0 .cse32) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 .cse32)))))) (forall ((v_z_10 Int)) (let ((.cse33 (mod v_z_10 .cse2))) (let ((.cse34 (div .cse33 .cse3))) (or (< v_z_10 0) (< 255 v_z_10) (< 0 (+ .cse33 1)) (< c_~var_1_35~0 (+ 2 .cse34)) (< 0 (+ .cse34 1)) (= (mod .cse33 .cse3) 0))))) (forall ((v_z_15 Int)) (let ((.cse36 (mod v_z_15 .cse2))) (let ((.cse35 (div .cse36 .cse3))) (or (< 255 v_z_15) (< v_z_15 0) (< c_~var_1_35~0 (+ 1 .cse35)) (< 0 .cse35) (< .cse36 0))))) (or .cse0 (forall ((v_z_78 Int)) (let ((.cse37 (div (mod v_z_78 .cse2) .cse3))) (or (< c_~var_1_35~0 (+ 2 .cse37)) (< 0 .cse37) (< v_z_78 0) (< 255 v_z_78))))) (or (forall ((v_z_52 Int)) (or (< v_z_52 0) (< c_~var_1_35~0 (+ 2 (div (mod v_z_52 .cse2) .cse3))) (< 255 v_z_52))) .cse7) (or (and (or .cse14 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< 255 v_z_39) (< (mod v_z_39 .cse2) 0)))) (or .cse7 (forall ((v_z_39 Int)) (let ((.cse38 (div (mod v_z_39 .cse2) .cse3))) (or (< v_z_39 0) (< c_~var_1_35~0 .cse38) (< 255 v_z_39) (= .cse38 c_~var_1_35~0))))) (or .cse14 (forall ((v_z_33 Int)) (let ((.cse39 (div (mod v_z_33 .cse2) .cse3))) (or (= .cse39 1) (< 1 .cse39) (< v_z_33 0) (< 255 v_z_33))))) (or (forall ((v_z_41 Int)) (let ((.cse40 (div (mod v_z_41 .cse2) .cse3))) (or (< v_z_41 0) (= .cse40 c_~var_1_35~0) (< c_~var_1_35~0 .cse40) (< 255 v_z_41)))) .cse7) (or .cse14 (forall ((v_z_45 Int)) (let ((.cse41 (mod v_z_45 .cse2))) (or (< v_z_45 0) (not (= (mod .cse41 .cse3) 0)) (< 255 v_z_45) (< 0 (div .cse41 .cse3)))))) (forall ((v_z_39 Int)) (let ((.cse43 (mod v_z_39 .cse2))) (let ((.cse42 (div .cse43 .cse3))) (or (< v_z_39 0) (< c_~var_1_35~0 .cse42) (< 255 v_z_39) (< .cse43 0) (= .cse42 c_~var_1_35~0))))) (forall ((v_z_45 Int)) (let ((.cse44 (mod v_z_45 .cse2))) (let ((.cse45 (div .cse44 .cse3))) (or (< v_z_45 0) (not (= (mod .cse44 .cse3) 0)) (= .cse45 c_~var_1_35~0) (< c_~var_1_35~0 .cse45) (< 255 v_z_45) (< 0 .cse45))))) (forall ((v_z_33 Int)) (let ((.cse46 (div (mod v_z_33 .cse2) .cse3))) (or (= .cse46 1) (< 1 .cse46) (< v_z_33 0) (< c_~var_1_35~0 .cse46) (< 255 v_z_33) (= .cse46 c_~var_1_35~0)))) (or (forall ((v_z_36 Int)) (let ((.cse47 (div (mod v_z_36 .cse2) .cse3))) (or (< v_z_36 0) (= .cse47 c_~var_1_35~0) (< c_~var_1_35~0 .cse47) (< 255 v_z_36)))) .cse7) (or .cse7 (forall ((v_z_50 Int)) (let ((.cse49 (mod v_z_50 .cse2))) (let ((.cse48 (div .cse49 .cse3))) (or (< c_~var_1_35~0 .cse48) (< v_z_50 0) (< 255 v_z_50) (not (= (mod .cse49 .cse3) 0)) (= .cse48 c_~var_1_35~0))))))) .cse0) (or .cse14 (and (or (forall ((v_z_13 Int)) (let ((.cse50 (mod v_z_13 .cse2))) (or (= (mod .cse50 .cse3) 0) (< 0 (+ .cse50 1)) (< 255 v_z_13) (< v_z_13 0) (< 1 (div .cse50 .cse3))))) .cse0) (forall ((v_z_13 Int)) (let ((.cse51 (mod v_z_13 .cse2))) (or (= (mod .cse51 .cse3) 0) (< 0 (+ .cse51 1)) (< 255 v_z_13) (< 0 (+ (div .cse51 .cse3) 1)) (< v_z_13 0)))))) (or (forall ((v_z_29 Int)) (let ((.cse52 (mod v_z_29 .cse2))) (or (not (= (mod .cse52 .cse3) 0)) (< c_~var_1_35~0 (+ (div .cse52 .cse3) 1)) (< 255 v_z_29) (< v_z_29 0)))) .cse7) (or (forall ((v_z_64 Int)) (let ((.cse54 (mod v_z_64 .cse2))) (let ((.cse53 (div .cse54 .cse3))) (or (< v_z_64 0) (< c_~var_1_35~0 (+ .cse53 2)) (< 255 v_z_64) (not (= (mod .cse54 .cse3) 0)) (< 1 .cse53) (= .cse53 1))))) .cse0) (or (forall ((v_z_25 Int)) (let ((.cse56 (mod v_z_25 .cse2))) (let ((.cse55 (div .cse56 .cse3))) (or (< 0 .cse55) (not (= (mod .cse56 .cse3) 0)) (< c_~var_1_35~0 (+ .cse55 1)) (< 255 v_z_25) (< v_z_25 0))))) .cse0) (or (forall ((v_z_15 Int)) (let ((.cse57 (mod v_z_15 .cse2))) (or (< 255 v_z_15) (< v_z_15 0) (< c_~var_1_35~0 (+ 1 (div .cse57 .cse3))) (< .cse57 0)))) .cse7) (forall ((v_z_62 Int)) (let ((.cse59 (mod v_z_62 .cse2))) (let ((.cse58 (div .cse59 .cse3))) (or (< 0 .cse58) (< 255 v_z_62) (< c_~var_1_35~0 (+ .cse58 2)) (= .cse58 0) (not (= (mod .cse59 .cse3) 0)) (< v_z_62 0))))) (or (forall ((v_z_68 Int)) (let ((.cse60 (mod v_z_68 .cse2))) (or (not (= (mod .cse60 .cse3) 0)) (< 255 v_z_68) (< v_z_68 0) (< c_~var_1_35~0 (+ 2 (div .cse60 .cse3)))))) .cse7) (or .cse14 (and (or (forall ((v_z_15 Int)) (or (< 255 v_z_15) (< v_z_15 0) (< 0 (div (mod v_z_15 .cse2) .cse3)))) .cse0) (forall ((v_z_15 Int)) (let ((.cse61 (mod v_z_15 .cse2))) (or (< 255 v_z_15) (< v_z_15 0) (< 0 (div .cse61 .cse3)) (< .cse61 0)))))) (or .cse21 .cse0))))) is different from true [2023-11-12 02:33:52,057 WARN L876 $PredicateComparison]: unable to prove that (or (let ((.cse63 (mod c_~var_1_51~0 256)) (.cse62 (mod c_~var_1_52~0 256))) (let ((.cse3 (+ .cse63 (* (- 1) .cse62))) (.cse2 (mod c_~var_1_50~0 256))) (let ((.cse7 (< 1 c_~var_1_35~0)) (.cse14 (< c_~var_1_35~0 2)) (.cse21 (forall ((v_z_55 Int)) (let ((.cse64 (mod v_z_55 .cse2))) (or (< .cse64 0) (< 255 v_z_55) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 (div .cse64 .cse3))))))) (.cse0 (< .cse62 (+ .cse63 1)))) (and (or .cse0 (forall ((v_z_55 Int)) (let ((.cse1 (div (mod v_z_55 .cse2) .cse3))) (or (< 255 v_z_55) (< 0 .cse1) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 .cse1)))))) (or .cse0 (and (forall ((v_z_7 Int)) (let ((.cse4 (mod v_z_7 .cse2))) (let ((.cse5 (div .cse4 .cse3))) (or (< 0 (+ .cse4 1)) (< 1 .cse5) (= (mod .cse4 .cse3) 0) (< 255 v_z_7) (< v_z_7 0) (< c_~var_1_35~0 .cse5))))) (or (forall ((v_z_7 Int)) (let ((.cse6 (mod v_z_7 .cse2))) (or (< 0 (+ .cse6 1)) (= (mod .cse6 .cse3) 0) (< 255 v_z_7) (< v_z_7 0) (< c_~var_1_35~0 (div .cse6 .cse3))))) .cse7))) (forall ((v_z_78 Int)) (let ((.cse8 (div (mod v_z_78 .cse2) .cse3))) (or (= .cse8 0) (< c_~var_1_35~0 (+ 2 .cse8)) (< 0 .cse8) (< v_z_78 0) (< 255 v_z_78)))) (or (forall ((v_z_54 Int)) (or (< 255 v_z_54) (< c_~var_1_35~0 (+ 2 (div (mod v_z_54 .cse2) .cse3))) (< v_z_54 0))) .cse7) (forall ((v_z_27 Int)) (let ((.cse10 (mod v_z_27 .cse2))) (let ((.cse9 (div .cse10 .cse3))) (or (< v_z_27 0) (< 255 v_z_27) (< c_~var_1_35~0 (+ .cse9 1)) (not (= (mod .cse10 .cse3) 0)) (< 0 .cse9))))) (or .cse7 (forall ((v_z_10 Int)) (let ((.cse11 (mod v_z_10 .cse2))) (or (< v_z_10 0) (< 255 v_z_10) (< 0 (+ .cse11 1)) (< c_~var_1_35~0 (+ 2 (div .cse11 .cse3))) (= (mod .cse11 .cse3) 0))))) (or (and (forall ((v_z_20 Int)) (let ((.cse12 (mod v_z_20 .cse2))) (or (< 255 v_z_20) (< 0 (div .cse12 .cse3)) (< v_z_20 0) (not (= (mod .cse12 .cse3) 0))))) (or (forall ((v_z_18 Int)) (let ((.cse13 (mod v_z_18 .cse2))) (or (< 0 (div .cse13 .cse3)) (< 255 v_z_18) (< v_z_18 0) (not (= (mod .cse13 .cse3) 0))))) .cse0)) .cse14) (or (forall ((v_z_62 Int)) (let ((.cse16 (mod v_z_62 .cse2))) (let ((.cse15 (div .cse16 .cse3))) (or (< 0 .cse15) (< 255 v_z_62) (< c_~var_1_35~0 (+ .cse15 2)) (not (= (mod .cse16 .cse3) 0)) (< v_z_62 0))))) .cse0) (or (forall ((v_z_10 Int)) (let ((.cse17 (mod v_z_10 .cse2))) (let ((.cse18 (div .cse17 .cse3))) (or (< v_z_10 0) (< 255 v_z_10) (< 0 (+ .cse17 1)) (< c_~var_1_35~0 (+ 2 .cse18)) (= (mod .cse17 .cse3) 0) (< 1 .cse18))))) .cse0) (or (forall ((v_z_15 Int)) (let ((.cse19 (div (mod v_z_15 .cse2) .cse3))) (or (< 255 v_z_15) (< v_z_15 0) (< c_~var_1_35~0 (+ 1 .cse19)) (< 0 .cse19)))) .cse0) (or (and (or (forall ((v_z_73 Int)) (or (< v_z_73 0) (< 255 v_z_73) (< c_~var_1_35~0 (+ (div (mod v_z_73 .cse2) .cse3) 2)))) .cse7) (forall ((v_z_75 Int)) (let ((.cse20 (div (mod v_z_75 .cse2) .cse3))) (or (< 255 v_z_75) (= .cse20 1) (< 1 .cse20) (< c_~var_1_35~0 (+ 2 .cse20)) (< v_z_75 0))))) .cse0) (or (and (or .cse0 (forall ((v_z_55 Int)) (or (< 255 v_z_55) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 (div (mod v_z_55 .cse2) .cse3)))))) .cse21) .cse7) (or .cse14 (and (or (forall ((v_z_88 Int)) (let ((.cse22 (mod v_z_88 .cse2))) (or (not (= (mod .cse22 .cse3) 0)) (< 255 v_z_88) (< v_z_88 0) (< 0 (div .cse22 .cse3))))) .cse0) (or (forall ((v_z_85 Int)) (let ((.cse24 (mod v_z_85 .cse2))) (let ((.cse23 (div .cse24 .cse3))) (or (= .cse23 1) (< 1 .cse23) (not (= (mod .cse24 .cse3) 0)) (< v_z_85 0) (< 255 v_z_85))))) .cse0) (or .cse0 (forall ((v_z_82 Int)) (or (< 0 (div (mod v_z_82 .cse2) .cse3)) (< 255 v_z_82) (< v_z_82 0)))) (forall ((v_z_88 Int)) (let ((.cse25 (mod v_z_88 .cse2))) (let ((.cse26 (div .cse25 .cse3))) (or (not (= (mod .cse25 .cse3) 0)) (= .cse26 0) (< 255 v_z_88) (< v_z_88 0) (< 0 .cse26))))) (or (forall ((v_z_80 Int)) (let ((.cse27 (div (mod v_z_80 .cse2) .cse3))) (or (< v_z_80 0) (< 1 .cse27) (= .cse27 1) (< 255 v_z_80)))) .cse0) (or (forall ((v_z_83 Int)) (or (< (mod v_z_83 .cse2) 0) (< v_z_83 0) (< 255 v_z_83))) .cse0) (forall ((v_z_82 Int)) (let ((.cse28 (div (mod v_z_82 .cse2) .cse3))) (or (= .cse28 0) (< 0 .cse28) (< 255 v_z_82) (< v_z_82 0)))) (forall ((v_z_83 Int)) (let ((.cse29 (mod v_z_83 .cse2))) (let ((.cse30 (div .cse29 .cse3))) (or (< .cse29 0) (< 0 .cse30) (< v_z_83 0) (< 255 v_z_83) (= .cse30 0))))))) (forall ((v_z_55 Int)) (let ((.cse31 (mod v_z_55 .cse2))) (let ((.cse32 (div .cse31 .cse3))) (or (< .cse31 0) (< 255 v_z_55) (= .cse32 0) (< 0 .cse32) (< v_z_55 0) (< c_~var_1_35~0 (+ 2 .cse32)))))) (forall ((v_z_10 Int)) (let ((.cse33 (mod v_z_10 .cse2))) (let ((.cse34 (div .cse33 .cse3))) (or (< v_z_10 0) (< 255 v_z_10) (< 0 (+ .cse33 1)) (< c_~var_1_35~0 (+ 2 .cse34)) (< 0 (+ .cse34 1)) (= (mod .cse33 .cse3) 0))))) (forall ((v_z_15 Int)) (let ((.cse36 (mod v_z_15 .cse2))) (let ((.cse35 (div .cse36 .cse3))) (or (< 255 v_z_15) (< v_z_15 0) (< c_~var_1_35~0 (+ 1 .cse35)) (< 0 .cse35) (< .cse36 0))))) (or .cse0 (forall ((v_z_78 Int)) (let ((.cse37 (div (mod v_z_78 .cse2) .cse3))) (or (< c_~var_1_35~0 (+ 2 .cse37)) (< 0 .cse37) (< v_z_78 0) (< 255 v_z_78))))) (or (forall ((v_z_52 Int)) (or (< v_z_52 0) (< c_~var_1_35~0 (+ 2 (div (mod v_z_52 .cse2) .cse3))) (< 255 v_z_52))) .cse7) (or (and (or .cse14 (forall ((v_z_39 Int)) (or (< v_z_39 0) (< 255 v_z_39) (< (mod v_z_39 .cse2) 0)))) (or .cse7 (forall ((v_z_39 Int)) (let ((.cse38 (div (mod v_z_39 .cse2) .cse3))) (or (< v_z_39 0) (< c_~var_1_35~0 .cse38) (< 255 v_z_39) (= .cse38 c_~var_1_35~0))))) (or .cse14 (forall ((v_z_33 Int)) (let ((.cse39 (div (mod v_z_33 .cse2) .cse3))) (or (= .cse39 1) (< 1 .cse39) (< v_z_33 0) (< 255 v_z_33))))) (or (forall ((v_z_41 Int)) (let ((.cse40 (div (mod v_z_41 .cse2) .cse3))) (or (< v_z_41 0) (= .cse40 c_~var_1_35~0) (< c_~var_1_35~0 .cse40) (< 255 v_z_41)))) .cse7) (or .cse14 (forall ((v_z_45 Int)) (let ((.cse41 (mod v_z_45 .cse2))) (or (< v_z_45 0) (not (= (mod .cse41 .cse3) 0)) (< 255 v_z_45) (< 0 (div .cse41 .cse3)))))) (forall ((v_z_39 Int)) (let ((.cse43 (mod v_z_39 .cse2))) (let ((.cse42 (div .cse43 .cse3))) (or (< v_z_39 0) (< c_~var_1_35~0 .cse42) (< 255 v_z_39) (< .cse43 0) (= .cse42 c_~var_1_35~0))))) (forall ((v_z_45 Int)) (let ((.cse44 (mod v_z_45 .cse2))) (let ((.cse45 (div .cse44 .cse3))) (or (< v_z_45 0) (not (= (mod .cse44 .cse3) 0)) (= .cse45 c_~var_1_35~0) (< c_~var_1_35~0 .cse45) (< 255 v_z_45) (< 0 .cse45))))) (forall ((v_z_33 Int)) (let ((.cse46 (div (mod v_z_33 .cse2) .cse3))) (or (= .cse46 1) (< 1 .cse46) (< v_z_33 0) (< c_~var_1_35~0 .cse46) (< 255 v_z_33) (= .cse46 c_~var_1_35~0)))) (or (forall ((v_z_36 Int)) (let ((.cse47 (div (mod v_z_36 .cse2) .cse3))) (or (< v_z_36 0) (= .cse47 c_~var_1_35~0) (< c_~var_1_35~0 .cse47) (< 255 v_z_36)))) .cse7) (or .cse7 (forall ((v_z_50 Int)) (let ((.cse49 (mod v_z_50 .cse2))) (let ((.cse48 (div .cse49 .cse3))) (or (< c_~var_1_35~0 .cse48) (< v_z_50 0) (< 255 v_z_50) (not (= (mod .cse49 .cse3) 0)) (= .cse48 c_~var_1_35~0))))))) .cse0) (or .cse14 (and (or (forall ((v_z_13 Int)) (let ((.cse50 (mod v_z_13 .cse2))) (or (= (mod .cse50 .cse3) 0) (< 0 (+ .cse50 1)) (< 255 v_z_13) (< v_z_13 0) (< 1 (div .cse50 .cse3))))) .cse0) (forall ((v_z_13 Int)) (let ((.cse51 (mod v_z_13 .cse2))) (or (= (mod .cse51 .cse3) 0) (< 0 (+ .cse51 1)) (< 255 v_z_13) (< 0 (+ (div .cse51 .cse3) 1)) (< v_z_13 0)))))) (or (forall ((v_z_29 Int)) (let ((.cse52 (mod v_z_29 .cse2))) (or (not (= (mod .cse52 .cse3) 0)) (< c_~var_1_35~0 (+ (div .cse52 .cse3) 1)) (< 255 v_z_29) (< v_z_29 0)))) .cse7) (or (forall ((v_z_64 Int)) (let ((.cse54 (mod v_z_64 .cse2))) (let ((.cse53 (div .cse54 .cse3))) (or (< v_z_64 0) (< c_~var_1_35~0 (+ .cse53 2)) (< 255 v_z_64) (not (= (mod .cse54 .cse3) 0)) (< 1 .cse53) (= .cse53 1))))) .cse0) (or (forall ((v_z_25 Int)) (let ((.cse56 (mod v_z_25 .cse2))) (let ((.cse55 (div .cse56 .cse3))) (or (< 0 .cse55) (not (= (mod .cse56 .cse3) 0)) (< c_~var_1_35~0 (+ .cse55 1)) (< 255 v_z_25) (< v_z_25 0))))) .cse0) (or (forall ((v_z_15 Int)) (let ((.cse57 (mod v_z_15 .cse2))) (or (< 255 v_z_15) (< v_z_15 0) (< c_~var_1_35~0 (+ 1 (div .cse57 .cse3))) (< .cse57 0)))) .cse7) (forall ((v_z_62 Int)) (let ((.cse59 (mod v_z_62 .cse2))) (let ((.cse58 (div .cse59 .cse3))) (or (< 0 .cse58) (< 255 v_z_62) (< c_~var_1_35~0 (+ .cse58 2)) (= .cse58 0) (not (= (mod .cse59 .cse3) 0)) (< v_z_62 0))))) (or (forall ((v_z_68 Int)) (let ((.cse60 (mod v_z_68 .cse2))) (or (not (= (mod .cse60 .cse3) 0)) (< 255 v_z_68) (< v_z_68 0) (< c_~var_1_35~0 (+ 2 (div .cse60 .cse3)))))) .cse7) (or .cse14 (and (or (forall ((v_z_15 Int)) (or (< 255 v_z_15) (< v_z_15 0) (< 0 (div (mod v_z_15 .cse2) .cse3)))) .cse0) (forall ((v_z_15 Int)) (let ((.cse61 (mod v_z_15 .cse2))) (or (< 255 v_z_15) (< v_z_15 0) (< 0 (div .cse61 .cse3)) (< .cse61 0)))))) (or .cse21 .cse0))))) (< c_~var_1_28~0 c_~var_1_34~0)) is different from true