./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 9bd2c7ff 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_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/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_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:57:59,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:59,255 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:57:59,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:59,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:59,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:59,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:59,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:59,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:59,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:59,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:59,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:59,299 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:59,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:59,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:59,302 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:59,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:59,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:59,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:59,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:59,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:59,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:59,305 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:59,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:59,306 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:59,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:59,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:59,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:59,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:59,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:59,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:59,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:59,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:59,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:59,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:59,312 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:59,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:59,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:59,313 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:59,313 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_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2827751d54d31813193a5e232b3cfb1b986bd1ad92439dc43412e6cd0eff047 [2023-11-19 07:57:59,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:59,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:59,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:59,616 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:59,617 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:59,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i [2023-11-19 07:58:02,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:03,051 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:03,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i [2023-11-19 07:58:03,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/data/5188b0d23/b9f18a24c65a4c978e818693f28c9b14/FLAG97e178edd [2023-11-19 07:58:03,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/data/5188b0d23/b9f18a24c65a4c978e818693f28c9b14 [2023-11-19 07:58:03,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:03,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:03,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:03,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:03,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:03,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d4cf52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03, skipping insertion in model container [2023-11-19 07:58:03,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,154 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:03,318 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_518e1712-ce5c-4630-8f6e-d1c425f9021c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i[916,929] [2023-11-19 07:58:03,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:03,500 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:03,513 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_518e1712-ce5c-4630-8f6e-d1c425f9021c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-35.i[916,929] [2023-11-19 07:58:03,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:03,586 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:03,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03 WrapperNode [2023-11-19 07:58:03,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:03,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:03,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:03,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:03,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,701 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372 [2023-11-19 07:58:03,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:03,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:03,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:03,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:03,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:03,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:03,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:03,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:03,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (1/1) ... [2023-11-19 07:58:03,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:03,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:03,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:03,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:58:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:58:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:03,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:03,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:04,051 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:04,054 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:04,948 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:04,963 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:04,963 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:58:04,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:04 BoogieIcfgContainer [2023-11-19 07:58:04,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:04,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:04,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:04,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:04,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:03" (1/3) ... [2023-11-19 07:58:04,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7288a57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:04, skipping insertion in model container [2023-11-19 07:58:04,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:03" (2/3) ... [2023-11-19 07:58:04,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7288a57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:04, skipping insertion in model container [2023-11-19 07:58:04,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:04" (3/3) ... [2023-11-19 07:58:04,990 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-35.i [2023-11-19 07:58:05,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:05,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:58:05,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:05,108 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;@1e6191f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:05,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:58:05,114 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) [2023-11-19 07:58:05,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-19 07:58:05,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:05,171 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] [2023-11-19 07:58:05,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:05,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1664640065, now seen corresponding path program 1 times [2023-11-19 07:58:05,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:05,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647064620] [2023-11-19 07:58:05,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:05,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:05,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:05,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647064620] [2023-11-19 07:58:05,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:58:05,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560990660] [2023-11-19 07:58:05,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:05,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:05,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:05,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:05,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:58:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:05,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:58:05,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2023-11-19 07:58:06,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:06,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560990660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:06,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:06,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:06,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145557932] [2023-11-19 07:58:06,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:06,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:58:06,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:06,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:58:06,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:58:06,107 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) [2023-11-19 07:58:06,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:06,160 INFO L93 Difference]: Finished difference Result 303 states and 558 transitions. [2023-11-19 07:58:06,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:58:06,163 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 [2023-11-19 07:58:06,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:06,173 INFO L225 Difference]: With dead ends: 303 [2023-11-19 07:58:06,173 INFO L226 Difference]: Without dead ends: 151 [2023-11-19 07:58:06,179 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 [2023-11-19 07:58:06,183 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 [2023-11-19 07:58:06,184 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] [2023-11-19 07:58:06,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-19 07:58:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-19 07:58:06,251 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) [2023-11-19 07:58:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 245 transitions. [2023-11-19 07:58:06,257 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 245 transitions. Word has length 368 [2023-11-19 07:58:06,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:06,258 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 245 transitions. [2023-11-19 07:58:06,258 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) [2023-11-19 07:58:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 245 transitions. [2023-11-19 07:58:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-19 07:58:06,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:06,268 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] [2023-11-19 07:58:06,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:06,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:06,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:06,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:06,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1923110471, now seen corresponding path program 1 times [2023-11-19 07:58:06,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:06,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450055388] [2023-11-19 07:58:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:06,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:06,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:06,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472493287] [2023-11-19 07:58:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:06,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:06,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:06,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:06,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:58:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:07,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:07,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-19 07:58:07,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:07,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:07,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450055388] [2023-11-19 07:58:07,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:07,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472493287] [2023-11-19 07:58:07,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472493287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:07,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:07,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729273794] [2023-11-19 07:58:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:07,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:07,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:07,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:07,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:07,090 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) [2023-11-19 07:58:07,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:07,135 INFO L93 Difference]: Finished difference Result 299 states and 487 transitions. [2023-11-19 07:58:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:07,137 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 [2023-11-19 07:58:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:07,143 INFO L225 Difference]: With dead ends: 299 [2023-11-19 07:58:07,143 INFO L226 Difference]: Without dead ends: 151 [2023-11-19 07:58:07,145 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 [2023-11-19 07:58:07,146 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 [2023-11-19 07:58:07,147 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] [2023-11-19 07:58:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-19 07:58:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-19 07:58:07,176 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) [2023-11-19 07:58:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 244 transitions. [2023-11-19 07:58:07,179 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 244 transitions. Word has length 368 [2023-11-19 07:58:07,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:07,183 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 244 transitions. [2023-11-19 07:58:07,183 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) [2023-11-19 07:58:07,184 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 244 transitions. [2023-11-19 07:58:07,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-19 07:58:07,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:07,194 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] [2023-11-19 07:58:07,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:07,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:07,409 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:07,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:07,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2121576405, now seen corresponding path program 1 times [2023-11-19 07:58:07,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:07,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303026426] [2023-11-19 07:58:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:07,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:07,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:07,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530709264] [2023-11-19 07:58:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:07,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:07,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:07,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:07,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:58:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:07,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:07,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:07,887 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-19 07:58:07,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:07,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:07,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303026426] [2023-11-19 07:58:07,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:07,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530709264] [2023-11-19 07:58:07,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530709264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:07,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:07,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882657760] [2023-11-19 07:58:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:07,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:07,899 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) [2023-11-19 07:58:07,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:07,986 INFO L93 Difference]: Finished difference Result 384 states and 621 transitions. [2023-11-19 07:58:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:07,988 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 [2023-11-19 07:58:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:07,998 INFO L225 Difference]: With dead ends: 384 [2023-11-19 07:58:07,998 INFO L226 Difference]: Without dead ends: 236 [2023-11-19 07:58:08,001 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 [2023-11-19 07:58:08,004 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 [2023-11-19 07:58:08,008 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] [2023-11-19 07:58:08,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-19 07:58:08,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2023-11-19 07:58:08,044 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) [2023-11-19 07:58:08,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 376 transitions. [2023-11-19 07:58:08,047 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 376 transitions. Word has length 369 [2023-11-19 07:58:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:08,055 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 376 transitions. [2023-11-19 07:58:08,055 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) [2023-11-19 07:58:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 376 transitions. [2023-11-19 07:58:08,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-19 07:58:08,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:08,066 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] [2023-11-19 07:58:08,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 07:58:08,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:08,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:08,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:08,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1987562899, now seen corresponding path program 1 times [2023-11-19 07:58:08,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:08,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654804800] [2023-11-19 07:58:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:08,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:08,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:08,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384008019] [2023-11-19 07:58:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:08,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:08,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:58:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:08,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:58:08,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3599 proven. 87 refuted. 0 times theorem prover too weak. 3394 trivial. 0 not checked. [2023-11-19 07:58:09,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:09,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 90 proven. 87 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2023-11-19 07:58:09,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:09,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654804800] [2023-11-19 07:58:09,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:09,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384008019] [2023-11-19 07:58:09,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384008019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:09,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:09,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 07:58:09,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931851514] [2023-11-19 07:58:09,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:09,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:58:09,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:09,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:58:09,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:09,422 INFO L87 Difference]: Start difference. First operand 233 states and 376 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) [2023-11-19 07:58:10,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:10,039 INFO L93 Difference]: Finished difference Result 473 states and 760 transitions. [2023-11-19 07:58:10,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:58:10,040 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 [2023-11-19 07:58:10,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:10,050 INFO L225 Difference]: With dead ends: 473 [2023-11-19 07:58:10,050 INFO L226 Difference]: Without dead ends: 243 [2023-11-19 07:58:10,052 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 [2023-11-19 07:58:10,059 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 138 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:10,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 730 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:58:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-19 07:58:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 239. [2023-11-19 07:58:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 155 states have (on average 1.4258064516129032) internal successors, (221), 156 states have internal predecessors, (221), 80 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-19 07:58:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 381 transitions. [2023-11-19 07:58:10,129 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 381 transitions. Word has length 369 [2023-11-19 07:58:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:10,130 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 381 transitions. [2023-11-19 07:58:10,130 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) [2023-11-19 07:58:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 381 transitions. [2023-11-19 07:58:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-19 07:58:10,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:10,134 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] [2023-11-19 07:58:10,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:10,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:10,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:10,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash -602900538, now seen corresponding path program 1 times [2023-11-19 07:58:10,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:10,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336364594] [2023-11-19 07:58:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:10,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:10,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107115835] [2023-11-19 07:58:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:10,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:10,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:10,438 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:10,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:58:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:10,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:58:10,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3579 proven. 81 refuted. 0 times theorem prover too weak. 3420 trivial. 0 not checked. [2023-11-19 07:58:10,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 96 proven. 81 refuted. 0 times theorem prover too weak. 6903 trivial. 0 not checked. [2023-11-19 07:58:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336364594] [2023-11-19 07:58:11,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:11,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107115835] [2023-11-19 07:58:11,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107115835] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:11,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:11,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 07:58:11,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431303744] [2023-11-19 07:58:11,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:11,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:58:11,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:11,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:58:11,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:11,302 INFO L87 Difference]: Start difference. First operand 239 states and 381 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) [2023-11-19 07:58:11,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:11,892 INFO L93 Difference]: Finished difference Result 483 states and 766 transitions. [2023-11-19 07:58:11,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:58:11,893 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 [2023-11-19 07:58:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:11,896 INFO L225 Difference]: With dead ends: 483 [2023-11-19 07:58:11,897 INFO L226 Difference]: Without dead ends: 247 [2023-11-19 07:58:11,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:58:11,899 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 235 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:11,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 687 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:58:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-19 07:58:11,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 241. [2023-11-19 07:58:11,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 156 states have (on average 1.3974358974358974) internal successors, (218), 157 states have internal predecessors, (218), 80 states have call successors, (80), 4 states have call predecessors, (80), 4 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-19 07:58:11,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 378 transitions. [2023-11-19 07:58:11,937 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 378 transitions. Word has length 370 [2023-11-19 07:58:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:11,938 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 378 transitions. [2023-11-19 07:58:11,938 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) [2023-11-19 07:58:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 378 transitions. [2023-11-19 07:58:11,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-19 07:58:11,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:11,942 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] [2023-11-19 07:58:11,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:12,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:12,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:12,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1112373628, now seen corresponding path program 1 times [2023-11-19 07:58:12,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:12,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685563379] [2023-11-19 07:58:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:12,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:12,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188921752] [2023-11-19 07:58:12,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:12,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:12,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:12,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:12,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:58:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:12,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:58:12,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 3740 proven. 165 refuted. 0 times theorem prover too weak. 3175 trivial. 0 not checked. [2023-11-19 07:58:13,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 183 proven. 168 refuted. 0 times theorem prover too weak. 6729 trivial. 0 not checked. [2023-11-19 07:58:13,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:13,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685563379] [2023-11-19 07:58:13,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:13,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188921752] [2023-11-19 07:58:13,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188921752] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:13,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:13,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-19 07:58:13,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528711357] [2023-11-19 07:58:13,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:13,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 07:58:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 07:58:13,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:58:13,941 INFO L87 Difference]: Start difference. First operand 241 states and 378 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) [2023-11-19 07:58:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:14,777 INFO L93 Difference]: Finished difference Result 487 states and 760 transitions. [2023-11-19 07:58:14,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:58:14,781 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 [2023-11-19 07:58:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:14,783 INFO L225 Difference]: With dead ends: 487 [2023-11-19 07:58:14,784 INFO L226 Difference]: Without dead ends: 249 [2023-11-19 07:58:14,785 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 [2023-11-19 07:58:14,786 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 426 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:14,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 685 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:58:14,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-19 07:58:14,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 243. [2023-11-19 07:58:14,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 157 states have (on average 1.3821656050955413) internal successors, (217), 158 states have internal predecessors, (217), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-19 07:58:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 377 transitions. [2023-11-19 07:58:14,824 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 377 transitions. Word has length 370 [2023-11-19 07:58:14,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:14,826 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 377 transitions. [2023-11-19 07:58:14,826 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) [2023-11-19 07:58:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 377 transitions. [2023-11-19 07:58:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-19 07:58:14,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:14,830 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] [2023-11-19 07:58:14,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:15,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:15,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:15,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:15,049 INFO L85 PathProgramCache]: Analyzing trace with hash 128051590, now seen corresponding path program 1 times [2023-11-19 07:58:15,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:15,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372597123] [2023-11-19 07:58:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:15,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:15,111 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932826418] [2023-11-19 07:58:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:15,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:15,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:15,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:15,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:58:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:15,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:15,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-19 07:58:15,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:15,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:15,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372597123] [2023-11-19 07:58:15,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932826418] [2023-11-19 07:58:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932826418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:15,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820368552] [2023-11-19 07:58:15,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:15,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:15,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:15,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:15,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:15,479 INFO L87 Difference]: Start difference. First operand 243 states and 377 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) [2023-11-19 07:58:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:15,842 INFO L93 Difference]: Finished difference Result 789 states and 1218 transitions. [2023-11-19 07:58:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:15,843 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 [2023-11-19 07:58:15,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:15,848 INFO L225 Difference]: With dead ends: 789 [2023-11-19 07:58:15,848 INFO L226 Difference]: Without dead ends: 549 [2023-11-19 07:58:15,850 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 [2023-11-19 07:58:15,851 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 308 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:15,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 764 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:58:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-19 07:58:15,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 329. [2023-11-19 07:58:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 227 states have (on average 1.3876651982378854) internal successors, (315), 230 states have internal predecessors, (315), 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) [2023-11-19 07:58:15,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 503 transitions. [2023-11-19 07:58:15,904 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 503 transitions. Word has length 371 [2023-11-19 07:58:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:15,905 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 503 transitions. [2023-11-19 07:58:15,905 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) [2023-11-19 07:58:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 503 transitions. [2023-11-19 07:58:15,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-19 07:58:15,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:15,909 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] [2023-11-19 07:58:15,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:16,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:58:16,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:16,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash 386217028, now seen corresponding path program 1 times [2023-11-19 07:58:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:16,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313695728] [2023-11-19 07:58:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:16,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:16,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:16,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804092611] [2023-11-19 07:58:16,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:16,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:16,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:16,203 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:16,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:58:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:16,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:58:16,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-19 07:58:17,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:17,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:17,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313695728] [2023-11-19 07:58:17,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:17,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804092611] [2023-11-19 07:58:17,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804092611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:17,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:17,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:17,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517511274] [2023-11-19 07:58:17,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:17,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:17,014 INFO L87 Difference]: Start difference. First operand 329 states and 503 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) [2023-11-19 07:58:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:17,290 INFO L93 Difference]: Finished difference Result 1043 states and 1590 transitions. [2023-11-19 07:58:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:17,291 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 [2023-11-19 07:58:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:17,297 INFO L225 Difference]: With dead ends: 1043 [2023-11-19 07:58:17,297 INFO L226 Difference]: Without dead ends: 717 [2023-11-19 07:58:17,299 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 [2023-11-19 07:58:17,301 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 181 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:17,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 718 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:58:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-19 07:58:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 653. [2023-11-19 07:58:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 450 states have (on average 1.3866666666666667) internal successors, (624), 456 states have internal predecessors, (624), 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) [2023-11-19 07:58:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1000 transitions. [2023-11-19 07:58:17,427 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1000 transitions. Word has length 371 [2023-11-19 07:58:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:17,428 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 1000 transitions. [2023-11-19 07:58:17,429 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) [2023-11-19 07:58:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1000 transitions. [2023-11-19 07:58:17,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-19 07:58:17,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:17,432 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] [2023-11-19 07:58:17,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:17,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:58:17,657 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:17,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1302726714, now seen corresponding path program 1 times [2023-11-19 07:58:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:17,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83142294] [2023-11-19 07:58:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:17,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:17,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258656972] [2023-11-19 07:58:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:17,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:17,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:17,726 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:17,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:58:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:18,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 07:58:18,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 1707 proven. 153 refuted. 0 times theorem prover too weak. 5220 trivial. 0 not checked. [2023-11-19 07:58:18,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2023-11-19 07:58:19,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:19,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83142294] [2023-11-19 07:58:19,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:19,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258656972] [2023-11-19 07:58:19,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258656972] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:19,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:19,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-19 07:58:19,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128967526] [2023-11-19 07:58:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:19,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:58:19,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:19,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:58:19,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:58:19,100 INFO L87 Difference]: Start difference. First operand 653 states and 1000 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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) [2023-11-19 07:58:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:20,349 INFO L93 Difference]: Finished difference Result 1747 states and 2606 transitions. [2023-11-19 07:58:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:58:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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 [2023-11-19 07:58:20,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:20,362 INFO L225 Difference]: With dead ends: 1747 [2023-11-19 07:58:20,362 INFO L226 Difference]: Without dead ends: 1421 [2023-11-19 07:58:20,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:58:20,366 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 534 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:20,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1513 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:58:20,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2023-11-19 07:58:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 713. [2023-11-19 07:58:20,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 510 states have (on average 1.411764705882353) internal successors, (720), 516 states have internal predecessors, (720), 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) [2023-11-19 07:58:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1096 transitions. [2023-11-19 07:58:20,537 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1096 transitions. Word has length 371 [2023-11-19 07:58:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:20,538 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 1096 transitions. [2023-11-19 07:58:20,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 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) [2023-11-19 07:58:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1096 transitions. [2023-11-19 07:58:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-19 07:58:20,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:20,542 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] [2023-11-19 07:58:20,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:20,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:20,750 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:20,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash -622668344, now seen corresponding path program 1 times [2023-11-19 07:58:20,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:20,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046366024] [2023-11-19 07:58:20,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:20,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:20,806 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:20,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367853105] [2023-11-19 07:58:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:20,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:20,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:20,807 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:20,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_518e1712-ce5c-4630-8f6e-d1c425f9021c/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:58:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:21,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:58:21,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:21,845 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 1667 proven. 39 refuted. 0 times theorem prover too weak. 5374 trivial. 0 not checked. [2023-11-19 07:58:21,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:41,446 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse19 (mod c_~var_1_52~0 256)) (.cse18 (mod c_~var_1_51~0 256))) (let ((.cse8 (< c_~var_1_35~0 2)) (.cse3 (< .cse19 (+ .cse18 1))) (.cse2 (< 1 c_~var_1_35~0)) (.cse1 (+ .cse18 (* (- 1) .cse19))) (.cse0 (mod c_~var_1_50~0 256))) (and (or (forall ((v_z_51 Int)) (or (< 255 v_z_51) (< c_~var_1_35~0 (+ (div (mod v_z_51 .cse0) .cse1) 2)) (< v_z_51 0))) .cse2) (or .cse3 (and (forall ((v_z_7 Int)) (let ((.cse4 (mod v_z_7 .cse0))) (let ((.cse5 (div .cse4 .cse1))) (or (< 0 (+ .cse4 1)) (< 1 .cse5) (= (mod .cse4 .cse1) 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 .cse0))) (or (< 0 (+ .cse6 1)) (= (mod .cse6 .cse1) 0) (< 255 v_z_7) (< v_z_7 0) (< c_~var_1_35~0 (div .cse6 .cse1))))) .cse2))) (or (forall ((v_z_14 Int)) (let ((.cse7 (mod v_z_14 .cse0))) (or (< .cse7 0) (< 0 (div .cse7 .cse1)) (< 255 v_z_14) (< v_z_14 0)))) .cse8) (forall ((v_z_60 Int)) (let ((.cse10 (mod v_z_60 .cse0))) (let ((.cse9 (div .cse10 .cse1))) (or (< c_~var_1_35~0 (+ .cse9 2)) (< 255 v_z_60) (< 0 .cse9) (< v_z_60 0) (= .cse9 0) (not (= (mod .cse10 .cse1) 0)))))) (or (forall ((v_z_67 Int)) (let ((.cse11 (mod v_z_67 .cse0))) (or (not (= (mod .cse11 .cse1) 0)) (< 255 v_z_67) (< c_~var_1_35~0 (+ 2 (div .cse11 .cse1))) (< v_z_67 0)))) .cse2) (forall ((v_z_14 Int)) (let ((.cse12 (mod v_z_14 .cse0))) (let ((.cse13 (div .cse12 .cse1))) (or (< .cse12 0) (< 0 .cse13) (< 255 v_z_14) (< c_~var_1_35~0 (+ .cse13 1)) (< v_z_14 0))))) (or .cse8 (and (forall ((v_z_82 Int)) (let ((.cse14 (mod v_z_82 .cse0))) (or (< .cse14 0) (< 0 (+ (div .cse14 .cse1) 1)) (< 255 v_z_82) (< v_z_82 0)))) (or (forall ((v_z_84 Int)) (let ((.cse16 (mod v_z_84 .cse0))) (let ((.cse15 (div .cse16 .cse1))) (or (= .cse15 1) (not (= (mod .cse16 .cse1) 0)) (< 1 .cse15) (< v_z_84 0) (< 255 v_z_84))))) .cse3) (or (forall ((v_z_87 Int)) (let ((.cse17 (mod v_z_87 .cse0))) (or (< 0 (div .cse17 .cse1)) (< 255 v_z_87) (< v_z_87 0) (not (= (mod .cse17 .cse1) 0))))) .cse3) (or (< .cse18 .cse19) (forall ((v_z_82 Int)) (let ((.cse20 (mod v_z_82 .cse0))) (let ((.cse21 (div .cse20 .cse1))) (or (< .cse20 0) (= .cse21 0) (< 0 .cse21) (< 255 v_z_82) (< v_z_82 0)))))) (or (forall ((v_z_82 Int)) (or (< (mod v_z_82 .cse0) 0) (< 255 v_z_82) (< v_z_82 0))) .cse3) (forall ((v_z_87 Int)) (let ((.cse23 (mod v_z_87 .cse0))) (let ((.cse22 (div .cse23 .cse1))) (or (< 0 .cse22) (< 255 v_z_87) (< v_z_87 0) (not (= (mod .cse23 .cse1) 0)) (= .cse22 0))))) (or .cse3 (forall ((v_z_79 Int)) (let ((.cse24 (div (mod v_z_79 .cse0) .cse1))) (or (< v_z_79 0) (< 1 .cse24) (< 255 v_z_79) (= .cse24 1))))) (or (forall ((v_z_81 Int)) (or (< v_z_81 0) (< 255 v_z_81) (< 0 (div (mod v_z_81 .cse0) .cse1)))) .cse3) (forall ((v_z_81 Int)) (let ((.cse25 (div (mod v_z_81 .cse0) .cse1))) (or (< v_z_81 0) (= 0 .cse25) (< 255 v_z_81) (< 0 .cse25)))))) (or .cse3 (and (forall ((v_z_74 Int)) (let ((.cse26 (div (mod v_z_74 .cse0) .cse1))) (or (< v_z_74 0) (< 1 .cse26) (< c_~var_1_35~0 (+ .cse26 2)) (< 255 v_z_74) (= .cse26 1)))) (or .cse2 (forall ((v_z_72 Int)) (or (< v_z_72 0) (< c_~var_1_35~0 (+ (div (mod v_z_72 .cse0) .cse1) 2)) (< 255 v_z_72)))))) (or (forall ((v_z_53 Int)) (or (< v_z_53 0) (< 255 v_z_53) (< c_~var_1_35~0 (+ 2 (div (mod v_z_53 .cse0) .cse1))))) .cse2) (or (and (forall ((v_z_54 Int)) (let ((.cse27 (div (mod v_z_54 .cse0) .cse1))) (or (< 1 .cse27) (< 255 v_z_54) (< c_~var_1_35~0 (+ 2 .cse27)) (< v_z_54 0) (= .cse27 1)))) (or (forall ((v_z_54 Int)) (or (< 255 v_z_54) (< c_~var_1_35~0 (+ 2 (div (mod v_z_54 .cse0) .cse1))) (< v_z_54 0))) .cse2)) .cse3) (forall ((v_z_26 Int)) (let ((.cse29 (mod v_z_26 .cse0))) (let ((.cse28 (div .cse29 .cse1))) (or (< v_z_26 0) (< 0 .cse28) (not (= (mod .cse29 .cse1) 0)) (< c_~var_1_35~0 (+ .cse28 1)) (< 255 v_z_26))))) (or (forall ((v_z_14 Int)) (let ((.cse30 (div (mod v_z_14 .cse0) .cse1))) (or (< 0 .cse30) (< 255 v_z_14) (< c_~var_1_35~0 (+ .cse30 1)) (< v_z_14 0)))) .cse3) (or (forall ((v_z_9 Int)) (let ((.cse31 (mod v_z_9 .cse0))) (or (< v_z_9 0) (< c_~var_1_35~0 (+ 2 (div .cse31 .cse1))) (< 0 (+ .cse31 1)) (= (mod .cse31 .cse1) 0) (< 255 v_z_9)))) .cse2) (or (forall ((v_z_28 Int)) (let ((.cse32 (mod v_z_28 .cse0))) (or (not (= (mod .cse32 .cse1) 0)) (< v_z_28 0) (< 255 v_z_28) (< c_~var_1_35~0 (+ (div .cse32 .cse1) 1))))) .cse2) (or (and (forall ((v_z_44 Int)) (let ((.cse34 (mod v_z_44 .cse0))) (let ((.cse33 (div .cse34 .cse1))) (or (< v_z_44 0) (< 0 .cse33) (< c_~var_1_35~0 .cse33) (< 255 v_z_44) (= .cse33 c_~var_1_35~0) (not (= (mod .cse34 .cse1) 0)))))) (or (forall ((v_z_38 Int)) (let ((.cse35 (div (mod v_z_38 .cse0) .cse1))) (or (< 255 v_z_38) (< v_z_38 0) (< c_~var_1_35~0 .cse35) (= .cse35 c_~var_1_35~0)))) .cse2) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< (mod v_z_38 .cse0) 0) (< v_z_38 0))) .cse8) (or (forall ((v_z_40 Int)) (let ((.cse36 (div (mod v_z_40 .cse0) .cse1))) (or (= c_~var_1_35~0 .cse36) (< c_~var_1_35~0 .cse36) (< v_z_40 0) (< 255 v_z_40)))) .cse2) (or (forall ((v_z_44 Int)) (let ((.cse37 (mod v_z_44 .cse0))) (or (< v_z_44 0) (< 0 (div .cse37 .cse1)) (< 255 v_z_44) (not (= (mod .cse37 .cse1) 0))))) .cse8) (forall ((v_z_38 Int)) (let ((.cse38 (mod v_z_38 .cse0))) (let ((.cse39 (div .cse38 .cse1))) (or (< 255 v_z_38) (< .cse38 0) (< v_z_38 0) (< c_~var_1_35~0 .cse39) (= .cse39 c_~var_1_35~0))))) (or .cse8 (forall ((v_z_32 Int)) (let ((.cse40 (div (mod v_z_32 .cse0) .cse1))) (or (= .cse40 1) (< 1 .cse40) (< v_z_32 0) (< 255 v_z_32))))) (or (forall ((v_z_35 Int)) (let ((.cse41 (div (mod v_z_35 .cse0) .cse1))) (or (< 255 v_z_35) (< v_z_35 0) (= .cse41 c_~var_1_35~0) (< c_~var_1_35~0 .cse41)))) .cse2) (or (forall ((v_z_47 Int)) (let ((.cse43 (mod v_z_47 .cse0))) (let ((.cse42 (div .cse43 .cse1))) (or (< c_~var_1_35~0 .cse42) (= .cse42 c_~var_1_35~0) (not (= 0 (mod .cse43 .cse1))) (< v_z_47 0) (< 255 v_z_47))))) .cse2) (forall ((v_z_32 Int)) (let ((.cse44 (div (mod v_z_32 .cse0) .cse1))) (or (= .cse44 1) (= .cse44 c_~var_1_35~0) (< 1 .cse44) (< v_z_32 0) (< 255 v_z_32) (< c_~var_1_35~0 .cse44))))) .cse3) (or (and (forall ((v_z_19 Int)) (let ((.cse45 (mod v_z_19 .cse0))) (or (< v_z_19 0) (< 0 (div .cse45 .cse1)) (not (= (mod .cse45 .cse1) 0)) (< 255 v_z_19)))) (or (forall ((v_z_17 Int)) (let ((.cse46 (mod v_z_17 .cse0))) (or (< 255 v_z_17) (not (= (mod .cse46 .cse1) 0)) (< v_z_17 0) (< 0 (div .cse46 .cse1))))) .cse3)) .cse8) (or (forall ((v_z_60 Int)) (let ((.cse48 (mod v_z_60 .cse0))) (let ((.cse47 (div .cse48 .cse1))) (or (< c_~var_1_35~0 (+ .cse47 2)) (< 255 v_z_60) (< 0 .cse47) (< v_z_60 0) (not (= (mod .cse48 .cse1) 0)))))) .cse3) (or (forall ((v_z_77 Int)) (let ((.cse49 (div (mod v_z_77 .cse0) .cse1))) (or (< c_~var_1_35~0 (+ .cse49 2)) (< 255 v_z_77) (< v_z_77 0) (< 0 .cse49)))) .cse3) (or (forall ((v_z_9 Int)) (let ((.cse51 (mod v_z_9 .cse0))) (let ((.cse50 (div .cse51 .cse1))) (or (< v_z_9 0) (< c_~var_1_35~0 (+ 2 .cse50)) (< 0 (+ .cse51 1)) (= (mod .cse51 .cse1) 0) (< 1 .cse50) (< 255 v_z_9))))) .cse3) (or (forall ((v_z_63 Int)) (let ((.cse52 (mod v_z_63 .cse0))) (let ((.cse53 (div .cse52 .cse1))) (or (not (= (mod .cse52 .cse1) 0)) (= .cse53 1) (< 255 v_z_63) (< c_~var_1_35~0 (+ 2 .cse53)) (< v_z_63 0) (< 1 .cse53))))) .cse3) (or (forall ((v_z_25 Int)) (let ((.cse55 (mod v_z_25 .cse0))) (let ((.cse54 (div .cse55 .cse1))) (or (< 0 .cse54) (not (= (mod .cse55 .cse1) 0)) (< c_~var_1_35~0 (+ .cse54 1)) (< 255 v_z_25) (< v_z_25 0))))) .cse3) (or .cse8 (and (or .cse3 (forall ((v_z_12 Int)) (let ((.cse56 (mod v_z_12 .cse0))) (or (< 255 v_z_12) (< v_z_12 0) (< 0 (+ .cse56 1)) (< 1 (div .cse56 .cse1)) (= (mod .cse56 .cse1) 0))))) (forall ((v_z_12 Int)) (let ((.cse57 (mod v_z_12 .cse0))) (or (< 255 v_z_12) (< 0 (+ (div .cse57 .cse1) 1)) (< v_z_12 0) (< 0 (+ .cse57 1)) (= (mod .cse57 .cse1) 0)))))) (forall ((v_z_54 Int)) (let ((.cse59 (mod v_z_54 .cse0))) (let ((.cse58 (div .cse59 .cse1))) (or (< 255 v_z_54) (< 0 (+ .cse58 1)) (< .cse59 0) (< c_~var_1_35~0 (+ 2 .cse58)) (< v_z_54 0))))) (forall ((v_z_77 Int)) (let ((.cse60 (div (mod v_z_77 .cse0) .cse1))) (or (< c_~var_1_35~0 (+ .cse60 2)) (= .cse60 0) (< 255 v_z_77) (< v_z_77 0) (< 0 .cse60)))) (or (and (or .cse3 (forall ((v_z_14 Int)) (or (< 255 v_z_14) (< c_~var_1_35~0 (+ (div (mod v_z_14 .cse0) .cse1) 1)) (< v_z_14 0)))) (forall ((v_z_14 Int)) (let ((.cse61 (mod v_z_14 .cse0))) (or (< .cse61 0) (< 255 v_z_14) (< c_~var_1_35~0 (+ (div .cse61 .cse1) 1)) (< v_z_14 0))))) .cse2) (forall ((v_z_9 Int)) (let ((.cse63 (mod v_z_9 .cse0))) (let ((.cse62 (div .cse63 .cse1))) (or (< 0 (+ .cse62 1)) (< v_z_9 0) (< c_~var_1_35~0 (+ 2 .cse62)) (< 0 (+ .cse63 1)) (= (mod .cse63 .cse1) 0) (< 255 v_z_9)))))))) is different from false [2023-11-19 07:58:43,500 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse19 (mod c_~var_1_52~0 256)) (.cse18 (mod c_~var_1_51~0 256))) (let ((.cse8 (< c_~var_1_35~0 2)) (.cse3 (< .cse19 (+ .cse18 1))) (.cse2 (< 1 c_~var_1_35~0)) (.cse1 (+ .cse18 (* (- 1) .cse19))) (.cse0 (mod c_~var_1_50~0 256))) (and (or (forall ((v_z_51 Int)) (or (< 255 v_z_51) (< c_~var_1_35~0 (+ (div (mod v_z_51 .cse0) .cse1) 2)) (< v_z_51 0))) .cse2) (or .cse3 (and (forall ((v_z_7 Int)) (let ((.cse4 (mod v_z_7 .cse0))) (let ((.cse5 (div .cse4 .cse1))) (or (< 0 (+ .cse4 1)) (< 1 .cse5) (= (mod .cse4 .cse1) 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 .cse0))) (or (< 0 (+ .cse6 1)) (= (mod .cse6 .cse1) 0) (< 255 v_z_7) (< v_z_7 0) (< c_~var_1_35~0 (div .cse6 .cse1))))) .cse2))) (or (forall ((v_z_14 Int)) (let ((.cse7 (mod v_z_14 .cse0))) (or (< .cse7 0) (< 0 (div .cse7 .cse1)) (< 255 v_z_14) (< v_z_14 0)))) .cse8) (forall ((v_z_60 Int)) (let ((.cse10 (mod v_z_60 .cse0))) (let ((.cse9 (div .cse10 .cse1))) (or (< c_~var_1_35~0 (+ .cse9 2)) (< 255 v_z_60) (< 0 .cse9) (< v_z_60 0) (= .cse9 0) (not (= (mod .cse10 .cse1) 0)))))) (or (forall ((v_z_67 Int)) (let ((.cse11 (mod v_z_67 .cse0))) (or (not (= (mod .cse11 .cse1) 0)) (< 255 v_z_67) (< c_~var_1_35~0 (+ 2 (div .cse11 .cse1))) (< v_z_67 0)))) .cse2) (forall ((v_z_14 Int)) (let ((.cse12 (mod v_z_14 .cse0))) (let ((.cse13 (div .cse12 .cse1))) (or (< .cse12 0) (< 0 .cse13) (< 255 v_z_14) (< c_~var_1_35~0 (+ .cse13 1)) (< v_z_14 0))))) (or .cse8 (and (forall ((v_z_82 Int)) (let ((.cse14 (mod v_z_82 .cse0))) (or (< .cse14 0) (< 0 (+ (div .cse14 .cse1) 1)) (< 255 v_z_82) (< v_z_82 0)))) (or (forall ((v_z_84 Int)) (let ((.cse16 (mod v_z_84 .cse0))) (let ((.cse15 (div .cse16 .cse1))) (or (= .cse15 1) (not (= (mod .cse16 .cse1) 0)) (< 1 .cse15) (< v_z_84 0) (< 255 v_z_84))))) .cse3) (or (forall ((v_z_87 Int)) (let ((.cse17 (mod v_z_87 .cse0))) (or (< 0 (div .cse17 .cse1)) (< 255 v_z_87) (< v_z_87 0) (not (= (mod .cse17 .cse1) 0))))) .cse3) (or (< .cse18 .cse19) (forall ((v_z_82 Int)) (let ((.cse20 (mod v_z_82 .cse0))) (let ((.cse21 (div .cse20 .cse1))) (or (< .cse20 0) (= .cse21 0) (< 0 .cse21) (< 255 v_z_82) (< v_z_82 0)))))) (or (forall ((v_z_82 Int)) (or (< (mod v_z_82 .cse0) 0) (< 255 v_z_82) (< v_z_82 0))) .cse3) (forall ((v_z_87 Int)) (let ((.cse23 (mod v_z_87 .cse0))) (let ((.cse22 (div .cse23 .cse1))) (or (< 0 .cse22) (< 255 v_z_87) (< v_z_87 0) (not (= (mod .cse23 .cse1) 0)) (= .cse22 0))))) (or .cse3 (forall ((v_z_79 Int)) (let ((.cse24 (div (mod v_z_79 .cse0) .cse1))) (or (< v_z_79 0) (< 1 .cse24) (< 255 v_z_79) (= .cse24 1))))) (or (forall ((v_z_81 Int)) (or (< v_z_81 0) (< 255 v_z_81) (< 0 (div (mod v_z_81 .cse0) .cse1)))) .cse3) (forall ((v_z_81 Int)) (let ((.cse25 (div (mod v_z_81 .cse0) .cse1))) (or (< v_z_81 0) (= 0 .cse25) (< 255 v_z_81) (< 0 .cse25)))))) (or .cse3 (and (forall ((v_z_74 Int)) (let ((.cse26 (div (mod v_z_74 .cse0) .cse1))) (or (< v_z_74 0) (< 1 .cse26) (< c_~var_1_35~0 (+ .cse26 2)) (< 255 v_z_74) (= .cse26 1)))) (or .cse2 (forall ((v_z_72 Int)) (or (< v_z_72 0) (< c_~var_1_35~0 (+ (div (mod v_z_72 .cse0) .cse1) 2)) (< 255 v_z_72)))))) (or (forall ((v_z_53 Int)) (or (< v_z_53 0) (< 255 v_z_53) (< c_~var_1_35~0 (+ 2 (div (mod v_z_53 .cse0) .cse1))))) .cse2) (or (and (forall ((v_z_54 Int)) (let ((.cse27 (div (mod v_z_54 .cse0) .cse1))) (or (< 1 .cse27) (< 255 v_z_54) (< c_~var_1_35~0 (+ 2 .cse27)) (< v_z_54 0) (= .cse27 1)))) (or (forall ((v_z_54 Int)) (or (< 255 v_z_54) (< c_~var_1_35~0 (+ 2 (div (mod v_z_54 .cse0) .cse1))) (< v_z_54 0))) .cse2)) .cse3) (forall ((v_z_26 Int)) (let ((.cse29 (mod v_z_26 .cse0))) (let ((.cse28 (div .cse29 .cse1))) (or (< v_z_26 0) (< 0 .cse28) (not (= (mod .cse29 .cse1) 0)) (< c_~var_1_35~0 (+ .cse28 1)) (< 255 v_z_26))))) (or (forall ((v_z_14 Int)) (let ((.cse30 (div (mod v_z_14 .cse0) .cse1))) (or (< 0 .cse30) (< 255 v_z_14) (< c_~var_1_35~0 (+ .cse30 1)) (< v_z_14 0)))) .cse3) (or (forall ((v_z_9 Int)) (let ((.cse31 (mod v_z_9 .cse0))) (or (< v_z_9 0) (< c_~var_1_35~0 (+ 2 (div .cse31 .cse1))) (< 0 (+ .cse31 1)) (= (mod .cse31 .cse1) 0) (< 255 v_z_9)))) .cse2) (or (forall ((v_z_28 Int)) (let ((.cse32 (mod v_z_28 .cse0))) (or (not (= (mod .cse32 .cse1) 0)) (< v_z_28 0) (< 255 v_z_28) (< c_~var_1_35~0 (+ (div .cse32 .cse1) 1))))) .cse2) (or (and (forall ((v_z_44 Int)) (let ((.cse34 (mod v_z_44 .cse0))) (let ((.cse33 (div .cse34 .cse1))) (or (< v_z_44 0) (< 0 .cse33) (< c_~var_1_35~0 .cse33) (< 255 v_z_44) (= .cse33 c_~var_1_35~0) (not (= (mod .cse34 .cse1) 0)))))) (or (forall ((v_z_38 Int)) (let ((.cse35 (div (mod v_z_38 .cse0) .cse1))) (or (< 255 v_z_38) (< v_z_38 0) (< c_~var_1_35~0 .cse35) (= .cse35 c_~var_1_35~0)))) .cse2) (or (forall ((v_z_38 Int)) (or (< 255 v_z_38) (< (mod v_z_38 .cse0) 0) (< v_z_38 0))) .cse8) (or (forall ((v_z_40 Int)) (let ((.cse36 (div (mod v_z_40 .cse0) .cse1))) (or (= c_~var_1_35~0 .cse36) (< c_~var_1_35~0 .cse36) (< v_z_40 0) (< 255 v_z_40)))) .cse2) (or (forall ((v_z_44 Int)) (let ((.cse37 (mod v_z_44 .cse0))) (or (< v_z_44 0) (< 0 (div .cse37 .cse1)) (< 255 v_z_44) (not (= (mod .cse37 .cse1) 0))))) .cse8) (forall ((v_z_38 Int)) (let ((.cse38 (mod v_z_38 .cse0))) (let ((.cse39 (div .cse38 .cse1))) (or (< 255 v_z_38) (< .cse38 0) (< v_z_38 0) (< c_~var_1_35~0 .cse39) (= .cse39 c_~var_1_35~0))))) (or .cse8 (forall ((v_z_32 Int)) (let ((.cse40 (div (mod v_z_32 .cse0) .cse1))) (or (= .cse40 1) (< 1 .cse40) (< v_z_32 0) (< 255 v_z_32))))) (or (forall ((v_z_35 Int)) (let ((.cse41 (div (mod v_z_35 .cse0) .cse1))) (or (< 255 v_z_35) (< v_z_35 0) (= .cse41 c_~var_1_35~0) (< c_~var_1_35~0 .cse41)))) .cse2) (or (forall ((v_z_47 Int)) (let ((.cse43 (mod v_z_47 .cse0))) (let ((.cse42 (div .cse43 .cse1))) (or (< c_~var_1_35~0 .cse42) (= .cse42 c_~var_1_35~0) (not (= 0 (mod .cse43 .cse1))) (< v_z_47 0) (< 255 v_z_47))))) .cse2) (forall ((v_z_32 Int)) (let ((.cse44 (div (mod v_z_32 .cse0) .cse1))) (or (= .cse44 1) (= .cse44 c_~var_1_35~0) (< 1 .cse44) (< v_z_32 0) (< 255 v_z_32) (< c_~var_1_35~0 .cse44))))) .cse3) (or (and (forall ((v_z_19 Int)) (let ((.cse45 (mod v_z_19 .cse0))) (or (< v_z_19 0) (< 0 (div .cse45 .cse1)) (not (= (mod .cse45 .cse1) 0)) (< 255 v_z_19)))) (or (forall ((v_z_17 Int)) (let ((.cse46 (mod v_z_17 .cse0))) (or (< 255 v_z_17) (not (= (mod .cse46 .cse1) 0)) (< v_z_17 0) (< 0 (div .cse46 .cse1))))) .cse3)) .cse8) (or (forall ((v_z_60 Int)) (let ((.cse48 (mod v_z_60 .cse0))) (let ((.cse47 (div .cse48 .cse1))) (or (< c_~var_1_35~0 (+ .cse47 2)) (< 255 v_z_60) (< 0 .cse47) (< v_z_60 0) (not (= (mod .cse48 .cse1) 0)))))) .cse3) (or (forall ((v_z_77 Int)) (let ((.cse49 (div (mod v_z_77 .cse0) .cse1))) (or (< c_~var_1_35~0 (+ .cse49 2)) (< 255 v_z_77) (< v_z_77 0) (< 0 .cse49)))) .cse3) (or (forall ((v_z_9 Int)) (let ((.cse51 (mod v_z_9 .cse0))) (let ((.cse50 (div .cse51 .cse1))) (or (< v_z_9 0) (< c_~var_1_35~0 (+ 2 .cse50)) (< 0 (+ .cse51 1)) (= (mod .cse51 .cse1) 0) (< 1 .cse50) (< 255 v_z_9))))) .cse3) (or (forall ((v_z_63 Int)) (let ((.cse52 (mod v_z_63 .cse0))) (let ((.cse53 (div .cse52 .cse1))) (or (not (= (mod .cse52 .cse1) 0)) (= .cse53 1) (< 255 v_z_63) (< c_~var_1_35~0 (+ 2 .cse53)) (< v_z_63 0) (< 1 .cse53))))) .cse3) (or (forall ((v_z_25 Int)) (let ((.cse55 (mod v_z_25 .cse0))) (let ((.cse54 (div .cse55 .cse1))) (or (< 0 .cse54) (not (= (mod .cse55 .cse1) 0)) (< c_~var_1_35~0 (+ .cse54 1)) (< 255 v_z_25) (< v_z_25 0))))) .cse3) (or .cse8 (and (or .cse3 (forall ((v_z_12 Int)) (let ((.cse56 (mod v_z_12 .cse0))) (or (< 255 v_z_12) (< v_z_12 0) (< 0 (+ .cse56 1)) (< 1 (div .cse56 .cse1)) (= (mod .cse56 .cse1) 0))))) (forall ((v_z_12 Int)) (let ((.cse57 (mod v_z_12 .cse0))) (or (< 255 v_z_12) (< 0 (+ (div .cse57 .cse1) 1)) (< v_z_12 0) (< 0 (+ .cse57 1)) (= (mod .cse57 .cse1) 0)))))) (forall ((v_z_54 Int)) (let ((.cse59 (mod v_z_54 .cse0))) (let ((.cse58 (div .cse59 .cse1))) (or (< 255 v_z_54) (< 0 (+ .cse58 1)) (< .cse59 0) (< c_~var_1_35~0 (+ 2 .cse58)) (< v_z_54 0))))) (forall ((v_z_77 Int)) (let ((.cse60 (div (mod v_z_77 .cse0) .cse1))) (or (< c_~var_1_35~0 (+ .cse60 2)) (= .cse60 0) (< 255 v_z_77) (< v_z_77 0) (< 0 .cse60)))) (or (and (or .cse3 (forall ((v_z_14 Int)) (or (< 255 v_z_14) (< c_~var_1_35~0 (+ (div (mod v_z_14 .cse0) .cse1) 1)) (< v_z_14 0)))) (forall ((v_z_14 Int)) (let ((.cse61 (mod v_z_14 .cse0))) (or (< .cse61 0) (< 255 v_z_14) (< c_~var_1_35~0 (+ (div .cse61 .cse1) 1)) (< v_z_14 0))))) .cse2) (forall ((v_z_9 Int)) (let ((.cse63 (mod v_z_9 .cse0))) (let ((.cse62 (div .cse63 .cse1))) (or (< 0 (+ .cse62 1)) (< v_z_9 0) (< c_~var_1_35~0 (+ 2 .cse62)) (< 0 (+ .cse63 1)) (= (mod .cse63 .cse1) 0) (< 255 v_z_9)))))))) is different from true