./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b82a2feeff1bf45727428077ccadb7452462e1099276a8b897477a025c2c05e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:02:14,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:14,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:02:14,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:14,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:14,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:14,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:14,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:14,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:14,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:14,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:14,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:14,275 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:14,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:14,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:14,278 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:02:14,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:14,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:02:14,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:14,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:14,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:14,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:14,281 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:02:14,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:14,282 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:14,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:14,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:14,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:14,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:14,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:14,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:14,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:14,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:14,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:14,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:14,287 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:14,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:14,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:14,288 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:14,288 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_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b82a2feeff1bf45727428077ccadb7452462e1099276a8b897477a025c2c05e5 [2023-11-06 22:02:14,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:14,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:14,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:14,672 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:14,672 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:14,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-37.i [2023-11-06 22:02:17,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:18,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:18,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-37.i [2023-11-06 22:02:18,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/data/145c0d929/0e4a239c4c694d199e8418a9c3b272e9/FLAGf06b97008 [2023-11-06 22:02:18,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/data/145c0d929/0e4a239c4c694d199e8418a9c3b272e9 [2023-11-06 22:02:18,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:18,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:18,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:18,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:18,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:18,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:18,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1c37e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18, skipping insertion in model container [2023-11-06 22:02:18,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:18,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:18,653 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_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-37.i[916,929] [2023-11-06 22:02:18,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:18,783 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:18,804 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_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-37.i[916,929] [2023-11-06 22:02:18,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:18,882 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:18,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18 WrapperNode [2023-11-06 22:02:18,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:18,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:18,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:18,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:18,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:18,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:18,977 INFO L138 Inliner]: procedures = 29, calls = 164, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 458 [2023-11-06 22:02:18,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:18,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:18,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:18,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:18,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:18,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:19,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:19,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:19,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:19,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (1/1) ... [2023-11-06 22:02:19,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:19,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:19,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 22:02:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:02:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 22:02:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:02:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-06 22:02:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:02:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:02:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:19,360 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:19,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:20,022 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:20,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:20,032 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:02:20,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:20 BoogieIcfgContainer [2023-11-06 22:02:20,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:20,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:20,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:20,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:20,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:18" (1/3) ... [2023-11-06 22:02:20,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b46cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:20, skipping insertion in model container [2023-11-06 22:02:20,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:18" (2/3) ... [2023-11-06 22:02:20,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b46cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:20, skipping insertion in model container [2023-11-06 22:02:20,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:20" (3/3) ... [2023-11-06 22:02:20,047 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-37.i [2023-11-06 22:02:20,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:20,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:02:20,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:02:20,142 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=LoopsAndPotentialCycles, 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;@2cf9adc3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:02:20,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:02:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 86 states have internal predecessors, (122), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 22:02:20,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:20,177 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:20,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:20,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash -851348922, now seen corresponding path program 1 times [2023-11-06 22:02:20,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:20,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553364993] [2023-11-06 22:02:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:20,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:20,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:20,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553364993] [2023-11-06 22:02:20,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:02:20,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523752271] [2023-11-06 22:02:20,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:20,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:20,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:20,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:20,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:02:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:20,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:02:20,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-06 22:02:20,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:20,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523752271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:20,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:20,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:20,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591129742] [2023-11-06 22:02:21,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:21,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:02:21,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:21,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:02:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:02:21,042 INFO L87 Difference]: Start difference. First operand has 103 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 86 states have internal predecessors, (122), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:02:21,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:21,083 INFO L93 Difference]: Finished difference Result 199 states and 313 transitions. [2023-11-06 22:02:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:02:21,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2023-11-06 22:02:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:21,096 INFO L225 Difference]: With dead ends: 199 [2023-11-06 22:02:21,096 INFO L226 Difference]: Without dead ends: 99 [2023-11-06 22:02:21,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:02:21,105 INFO L413 NwaCegarLoop]: 145 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, 145 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 [2023-11-06 22:02:21,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:21,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-06 22:02:21,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-06 22:02:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 82 states have internal predecessors, (115), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 145 transitions. [2023-11-06 22:02:21,183 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 145 transitions. Word has length 124 [2023-11-06 22:02:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:21,183 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 145 transitions. [2023-11-06 22:02:21,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:02:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 145 transitions. [2023-11-06 22:02:21,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 22:02:21,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:21,190 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:21,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:02:21,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:02:21,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:21,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:21,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1371063400, now seen corresponding path program 1 times [2023-11-06 22:02:21,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:21,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515394012] [2023-11-06 22:02:21,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:21,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:21,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:21,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4436722] [2023-11-06 22:02:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:21,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:21,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:21,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:21,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:02:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:21,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:21,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:02:22,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:22,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:22,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515394012] [2023-11-06 22:02:22,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:22,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4436722] [2023-11-06 22:02:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4436722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:22,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:22,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:02:22,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876908043] [2023-11-06 22:02:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:22,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:22,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:22,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:22,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:22,067 INFO L87 Difference]: Start difference. First operand 99 states and 145 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:22,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:22,130 INFO L93 Difference]: Finished difference Result 203 states and 298 transitions. [2023-11-06 22:02:22,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:02:22,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-11-06 22:02:22,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:22,135 INFO L225 Difference]: With dead ends: 203 [2023-11-06 22:02:22,136 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 22:02:22,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:22,139 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 12 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:22,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 420 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:22,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 22:02:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2023-11-06 22:02:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2023-11-06 22:02:22,162 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 124 [2023-11-06 22:02:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:22,164 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2023-11-06 22:02:22,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2023-11-06 22:02:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 22:02:22,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:22,169 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:22,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:22,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:22,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:22,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:22,378 INFO L85 PathProgramCache]: Analyzing trace with hash 403943962, now seen corresponding path program 1 times [2023-11-06 22:02:22,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:22,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792361720] [2023-11-06 22:02:22,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:22,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:22,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:22,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297815609] [2023-11-06 22:02:22,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:22,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:22,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:22,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:22,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:02:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:22,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:22,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:02:22,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:22,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:22,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792361720] [2023-11-06 22:02:22,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:22,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297815609] [2023-11-06 22:02:22,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297815609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:22,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:22,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:02:22,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420530091] [2023-11-06 22:02:22,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:22,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:22,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:22,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:22,816 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:22,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:22,865 INFO L93 Difference]: Finished difference Result 203 states and 296 transitions. [2023-11-06 22:02:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:02:22,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-11-06 22:02:22,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:22,878 INFO L225 Difference]: With dead ends: 203 [2023-11-06 22:02:22,878 INFO L226 Difference]: Without dead ends: 105 [2023-11-06 22:02:22,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:22,881 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 3 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:22,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 419 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-06 22:02:22,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2023-11-06 22:02:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2023-11-06 22:02:22,921 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 124 [2023-11-06 22:02:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:22,923 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2023-11-06 22:02:22,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2023-11-06 22:02:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 22:02:22,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:22,931 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:22,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:23,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:23,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:23,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:23,142 INFO L85 PathProgramCache]: Analyzing trace with hash 405791004, now seen corresponding path program 1 times [2023-11-06 22:02:23,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:23,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140603625] [2023-11-06 22:02:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:23,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:23,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:23,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404057810] [2023-11-06 22:02:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:23,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:23,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:23,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:23,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:02:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:23,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-06 22:02:23,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:24,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:24,721 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:02:24,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:24,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:24,783 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:02:24,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:24,856 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-06 22:02:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:02:24,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:25,025 INFO L322 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2023-11-06 22:02:25,026 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 38 [2023-11-06 22:02:25,039 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-11-06 22:02:25,040 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 70 [2023-11-06 22:02:25,056 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:02:25,057 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 54 [2023-11-06 22:02:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:02:25,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:25,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140603625] [2023-11-06 22:02:25,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:25,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404057810] [2023-11-06 22:02:25,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404057810] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:25,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:25,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-06 22:02:25,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779434147] [2023-11-06 22:02:25,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:25,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:02:25,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:25,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:02:25,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=114, Unknown=7, NotChecked=0, Total=156 [2023-11-06 22:02:25,425 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:25,918 INFO L93 Difference]: Finished difference Result 205 states and 297 transitions. [2023-11-06 22:02:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:02:25,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-11-06 22:02:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:25,922 INFO L225 Difference]: With dead ends: 205 [2023-11-06 22:02:25,922 INFO L226 Difference]: Without dead ends: 105 [2023-11-06 22:02:25,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=176, Unknown=7, NotChecked=0, Total=240 [2023-11-06 22:02:25,925 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 273 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:25,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 343 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-06 22:02:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2023-11-06 22:02:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.372093023255814) internal successors, (118), 86 states have internal predecessors, (118), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 148 transitions. [2023-11-06 22:02:25,946 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 148 transitions. Word has length 124 [2023-11-06 22:02:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:25,947 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 148 transitions. [2023-11-06 22:02:25,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 148 transitions. [2023-11-06 22:02:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 22:02:25,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:25,951 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:25,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:26,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:26,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:26,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1387440455, now seen corresponding path program 1 times [2023-11-06 22:02:26,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:26,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368133769] [2023-11-06 22:02:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:26,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:26,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:26,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787995048] [2023-11-06 22:02:26,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:26,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:26,266 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:26,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:02:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:26,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:02:26,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:28,071 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:02:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:28,526 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:28,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:28,824 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:29,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:29,063 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:29,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:29,261 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:29,490 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-06 22:02:29,491 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2023-11-06 22:02:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:29,509 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-06 22:02:29,510 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2023-11-06 22:02:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 1 proven. 347 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-06 22:02:29,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:29,550 WARN L839 $PredicateComparison]: unable to prove that (forall ((~var_1_14_Pointer~0.offset Int) (v_ArrVal_570 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| c_~var_1_14_Pointer~0.base (store (select |c_#memory_int| c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset (select (select |c_#memory_int| c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) c_~var_1_16_Pointer~0.base v_ArrVal_570) c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 1))) is different from false [2023-11-06 22:02:29,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:29,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368133769] [2023-11-06 22:02:29,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:29,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787995048] [2023-11-06 22:02:29,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787995048] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:29,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:29,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-06 22:02:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512071483] [2023-11-06 22:02:29,568 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:02:29,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:02:29,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:29,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:02:29,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=119, Unknown=1, NotChecked=22, Total=182 [2023-11-06 22:02:29,571 INFO L87 Difference]: Start difference. First operand 103 states and 148 transitions. Second operand has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-06 22:02:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:30,568 INFO L93 Difference]: Finished difference Result 213 states and 302 transitions. [2023-11-06 22:02:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:02:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 127 [2023-11-06 22:02:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:30,571 INFO L225 Difference]: With dead ends: 213 [2023-11-06 22:02:30,571 INFO L226 Difference]: Without dead ends: 113 [2023-11-06 22:02:30,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=373, Unknown=1, NotChecked=42, Total=552 [2023-11-06 22:02:30,573 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 133 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:30,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 443 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:02:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-06 22:02:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2023-11-06 22:02:30,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 150 transitions. [2023-11-06 22:02:30,593 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 150 transitions. Word has length 127 [2023-11-06 22:02:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:30,594 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 150 transitions. [2023-11-06 22:02:30,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-06 22:02:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 150 transitions. [2023-11-06 22:02:30,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 22:02:30,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:30,597 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:30,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:30,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:30,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:30,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash 877967365, now seen corresponding path program 1 times [2023-11-06 22:02:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:30,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403081020] [2023-11-06 22:02:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:30,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:30,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689961759] [2023-11-06 22:02:30,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:30,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:30,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:30,866 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:30,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:02:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:31,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 22:02:31,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:32,631 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-06 22:02:32,633 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2023-11-06 22:02:32,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:32,661 INFO L322 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-06 22:02:32,661 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-11-06 22:02:32,672 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-06 22:02:32,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:32,759 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:32,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:32,790 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:32,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:32,830 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:32,857 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:32,892 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:02:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:02:32,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:32,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403081020] [2023-11-06 22:02:32,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689961759] [2023-11-06 22:02:32,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689961759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:32,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:32,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:02:32,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037416454] [2023-11-06 22:02:32,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:32,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:02:32,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:32,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:02:32,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:02:32,910 INFO L87 Difference]: Start difference. First operand 107 states and 150 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:33,382 INFO L93 Difference]: Finished difference Result 213 states and 299 transitions. [2023-11-06 22:02:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:02:33,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-11-06 22:02:33,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:33,385 INFO L225 Difference]: With dead ends: 213 [2023-11-06 22:02:33,385 INFO L226 Difference]: Without dead ends: 109 [2023-11-06 22:02:33,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:02:33,387 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 263 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:33,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 271 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:02:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-06 22:02:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2023-11-06 22:02:33,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2023-11-06 22:02:33,430 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 127 [2023-11-06 22:02:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:33,434 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2023-11-06 22:02:33,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:33,435 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2023-11-06 22:02:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 22:02:33,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:33,439 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:33,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:33,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:33,646 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:33,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash -401896313, now seen corresponding path program 1 times [2023-11-06 22:02:33,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:33,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326993032] [2023-11-06 22:02:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:33,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:33,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:33,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519233307] [2023-11-06 22:02:33,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:33,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:33,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:33,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:33,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:02:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:34,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-06 22:02:34,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:34,415 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:02:35,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:35,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:36,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:36,288 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:37,038 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 22:02:37,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:37,955 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:02:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:38,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:38,592 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:02:39,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,123 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:02:39,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,497 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:02:39,924 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2023-11-06 22:02:39,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:39,934 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2023-11-06 22:02:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:40,228 INFO L322 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2023-11-06 22:02:40,228 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 34 [2023-11-06 22:02:40,236 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-06 22:02:40,243 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-06 22:02:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 1 proven. 391 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 22:02:40,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:40,383 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_811 (Array Int Int)) (~var_1_14_Pointer~0.offset Int)) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_14_Pointer~0.base (store (select |c_#memory_int| c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset (select (select |c_#memory_int| c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) c_~var_1_16_Pointer~0.base v_ArrVal_811))) (< (select (select .cse0 c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) (mod (select (select .cse0 c_~var_1_2_Pointer~0.base) c_~var_1_2_Pointer~0.offset) 65536)))) is different from false [2023-11-06 22:02:40,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326993032] [2023-11-06 22:02:40,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519233307] [2023-11-06 22:02:40,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519233307] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:40,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:40,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-06 22:02:40,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754862316] [2023-11-06 22:02:40,398 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:02:40,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-06 22:02:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:40,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-06 22:02:40,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=526, Unknown=1, NotChecked=46, Total=650 [2023-11-06 22:02:40,400 INFO L87 Difference]: Start difference. First operand 107 states and 149 transitions. Second operand has 22 states, 20 states have (on average 3.95) internal successors, (79), 18 states have internal predecessors, (79), 9 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) [2023-11-06 22:02:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:43,312 INFO L93 Difference]: Finished difference Result 225 states and 307 transitions. [2023-11-06 22:02:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 22:02:43,324 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.95) internal successors, (79), 18 states have internal predecessors, (79), 9 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) Word has length 127 [2023-11-06 22:02:43,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:43,328 INFO L225 Difference]: With dead ends: 225 [2023-11-06 22:02:43,328 INFO L226 Difference]: Without dead ends: 121 [2023-11-06 22:02:43,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=314, Invalid=1411, Unknown=1, NotChecked=80, Total=1806 [2023-11-06 22:02:43,332 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 187 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:43,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 628 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 22:02:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-06 22:02:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 115. [2023-11-06 22:02:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.305263157894737) internal successors, (124), 95 states have internal predecessors, (124), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2023-11-06 22:02:43,372 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 127 [2023-11-06 22:02:43,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:43,373 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2023-11-06 22:02:43,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.95) internal successors, (79), 18 states have internal predecessors, (79), 9 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) [2023-11-06 22:02:43,373 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2023-11-06 22:02:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 22:02:43,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:43,375 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:43,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:43,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 22:02:43,583 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:43,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:43,584 INFO L85 PathProgramCache]: Analyzing trace with hash -339856699, now seen corresponding path program 1 times [2023-11-06 22:02:43,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:43,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229565354] [2023-11-06 22:02:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:43,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:43,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:43,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700126495] [2023-11-06 22:02:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:43,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:43,630 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:43,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:02:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:43,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-06 22:02:43,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:45,557 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-06 22:02:45,557 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2023-11-06 22:02:45,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:45,576 INFO L322 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-06 22:02:45,577 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-11-06 22:02:45,584 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-06 22:02:45,702 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-06 22:02:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:45,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:45,742 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-06 22:02:45,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:45,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:45,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-06 22:02:45,834 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-06 22:02:45,919 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-06 22:02:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:02:45,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229565354] [2023-11-06 22:02:45,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700126495] [2023-11-06 22:02:45,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700126495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:45,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:45,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:02:45,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164633917] [2023-11-06 22:02:45,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:45,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:02:45,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:02:45,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:02:45,947 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:46,550 INFO L93 Difference]: Finished difference Result 227 states and 305 transitions. [2023-11-06 22:02:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:02:46,551 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-11-06 22:02:46,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:46,553 INFO L225 Difference]: With dead ends: 227 [2023-11-06 22:02:46,553 INFO L226 Difference]: Without dead ends: 115 [2023-11-06 22:02:46,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:02:46,554 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 361 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:46,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 339 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-06 22:02:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-11-06 22:02:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 95 states have internal predecessors, (123), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2023-11-06 22:02:46,576 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 127 [2023-11-06 22:02:46,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:46,577 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2023-11-06 22:02:46,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2023-11-06 22:02:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 22:02:46,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:46,579 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:46,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:46,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:02:46,785 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:46,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1350973949, now seen corresponding path program 1 times [2023-11-06 22:02:46,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:46,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052375742] [2023-11-06 22:02:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:46,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:46,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:46,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594897011] [2023-11-06 22:02:46,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:46,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:46,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:46,832 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:46,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:02:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:47,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-06 22:02:47,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:48,267 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:02:48,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:48,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:48,302 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:02:48,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:48,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:48,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:02:48,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:48,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:48,382 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:02:48,472 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:02:48,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:48,671 INFO L322 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2023-11-06 22:02:48,672 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 46 [2023-11-06 22:02:48,696 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-11-06 22:02:48,697 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1122 treesize of output 1050 [2023-11-06 22:02:48,774 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:02:48,775 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1038 treesize of output 982 [2023-11-06 22:02:48,823 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:02:48,823 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 974 treesize of output 854 [2023-11-06 22:02:48,867 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:02:48,872 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 846 treesize of output 822 [2023-11-06 22:02:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:02:50,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:50,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052375742] [2023-11-06 22:02:50,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:50,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594897011] [2023-11-06 22:02:50,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594897011] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:50,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:50,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 18 [2023-11-06 22:02:50,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792626500] [2023-11-06 22:02:50,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:50,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:02:50,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:50,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:02:50,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=238, Unknown=11, NotChecked=0, Total=306 [2023-11-06 22:02:50,736 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:51,323 INFO L93 Difference]: Finished difference Result 229 states and 305 transitions. [2023-11-06 22:02:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:02:51,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2023-11-06 22:02:51,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:51,327 INFO L225 Difference]: With dead ends: 229 [2023-11-06 22:02:51,328 INFO L226 Difference]: Without dead ends: 117 [2023-11-06 22:02:51,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=353, Unknown=11, NotChecked=0, Total=462 [2023-11-06 22:02:51,329 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 449 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:51,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 423 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:02:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-06 22:02:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2023-11-06 22:02:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 95 states have internal predecessors, (122), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:02:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 152 transitions. [2023-11-06 22:02:51,353 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 152 transitions. Word has length 127 [2023-11-06 22:02:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:51,354 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 152 transitions. [2023-11-06 22:02:51,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:02:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 152 transitions. [2023-11-06 22:02:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:02:51,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:51,356 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:51,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:51,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 22:02:51,556 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:51,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:51,557 INFO L85 PathProgramCache]: Analyzing trace with hash 557360958, now seen corresponding path program 1 times [2023-11-06 22:02:51,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:51,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287701671] [2023-11-06 22:02:51,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:51,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:51,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089307696] [2023-11-06 22:02:51,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:51,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:51,604 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:51,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:02:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 90 conjunts are in the unsatisfiable core [2023-11-06 22:02:52,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:55,091 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:02:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:56,147 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:02:56,853 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:02:57,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:57,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:57,872 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-11-06 22:02:58,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:58,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:58,340 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-11-06 22:02:58,917 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-06 22:02:58,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:58,931 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 40 [2023-11-06 22:02:59,176 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2023-11-06 22:02:59,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,333 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2023-11-06 22:02:59,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,491 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2023-11-06 22:02:59,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:59,728 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-06 22:02:59,728 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 140 treesize of output 128 [2023-11-06 22:02:59,804 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-11-06 22:02:59,821 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-11-06 22:02:59,880 INFO L322 Elim1Store]: treesize reduction 56, result has 13.8 percent of original size [2023-11-06 22:02:59,880 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 104 [2023-11-06 22:02:59,946 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 17 [2023-11-06 22:03:01,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:01,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:01,544 INFO L322 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2023-11-06 22:03:01,545 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 410 treesize of output 218 [2023-11-06 22:03:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 32 proven. 335 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-06 22:03:01,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:02,462 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1172 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse2 (mod (+ (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= (mod (let ((.cse0 (store .cse1 c_~var_1_11_Pointer~0.base (store (select .cse1 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse2)))) (+ (select (select .cse0 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse0 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256) 127)) (< 127 .cse2))))) (forall ((v_ArrVal_1172 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse5 (mod (+ (select (select .cse4 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse4 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= 128 (mod (let ((.cse3 (store .cse4 c_~var_1_11_Pointer~0.base (store (select .cse4 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ (- 256) .cse5))))) (+ (select (select .cse3 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse3 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256))) (< .cse5 128))))) (forall ((v_ArrVal_1172 (Array Int Int))) (let ((.cse8 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse6 (mod (+ (select (select .cse8 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse8 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= .cse6 (mod (let ((.cse7 (store .cse8 c_~var_1_11_Pointer~0.base (store (select .cse8 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ (- 256) .cse6))))) (+ (select (select .cse7 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse7 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256))) (< .cse6 128))))) (forall ((v_ArrVal_1172 (Array Int Int))) (let ((.cse11 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse9 (mod (+ (select (select .cse11 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse11 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (< 127 .cse9) (forall ((~var_1_11_Pointer~0.offset Int)) (= (mod (let ((.cse10 (store .cse11 c_~var_1_11_Pointer~0.base (store (select .cse11 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse9)))) (+ (select (select .cse10 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse10 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256) .cse9))))))) is different from false [2023-11-06 22:03:02,633 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse2 (mod (+ (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= 128 (mod (let ((.cse0 (store .cse1 c_~var_1_11_Pointer~0.base (store (select .cse1 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ (- 256) .cse2))))) (+ (select (select .cse0 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse0 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256))) (< .cse2 128))))) (forall ((v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse4 (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse5 (mod (+ (select (select .cse4 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse4 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= (mod (let ((.cse3 (store .cse4 c_~var_1_11_Pointer~0.base (store (select .cse4 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse5)))) (+ (select (select .cse3 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse3 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256) 127)) (< 127 .cse5))))) (forall ((v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse6 (mod (+ (select (select .cse8 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse8 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= .cse6 (mod (let ((.cse7 (store .cse8 c_~var_1_11_Pointer~0.base (store (select .cse8 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse6)))) (+ (select (select .cse7 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse7 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256))) (< 127 .cse6))))) (forall ((v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse11 (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse9 (mod (+ (select (select .cse11 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse11 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= .cse9 (mod (let ((.cse10 (store .cse11 c_~var_1_11_Pointer~0.base (store (select .cse11 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ (- 256) .cse9))))) (+ (select (select .cse10 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse10 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256))) (< .cse9 128)))))) is different from false [2023-11-06 22:03:02,755 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_~var_1_7_Pointer~0.base)) (.cse4 (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (and (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse2 (store (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base (store .cse3 ~var_1_7_Pointer~0.offset .cse4)) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse0 (mod (+ (select (select .cse2 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse2 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= .cse0 (mod (let ((.cse1 (store .cse2 c_~var_1_11_Pointer~0.base (store (select .cse2 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse0)))) (+ (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256))) (< 127 .cse0))))) (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse7 (store (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base (store .cse3 ~var_1_7_Pointer~0.offset .cse4)) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse5 (mod (+ (select (select .cse7 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse7 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= .cse5 (mod (let ((.cse6 (store .cse7 c_~var_1_11_Pointer~0.base (store (select .cse7 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ .cse5 (- 256)))))) (+ (select (select .cse6 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse6 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256))) (< .cse5 128))))) (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse9 (store (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base (store .cse3 ~var_1_7_Pointer~0.offset .cse4)) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse10 (mod (+ (select (select .cse9 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse9 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= 128 (mod (let ((.cse8 (store .cse9 c_~var_1_11_Pointer~0.base (store (select .cse9 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ .cse10 (- 256)))))) (+ (select (select .cse8 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse8 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256))) (< .cse10 128))))) (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse12 (store (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base (store .cse3 ~var_1_7_Pointer~0.offset .cse4)) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse13 (mod (+ (select (select .cse12 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse12 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= (mod (let ((.cse11 (store .cse12 c_~var_1_11_Pointer~0.base (store (select .cse12 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse13)))) (+ (select (select .cse11 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse11 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256) 127)) (< 127 .cse13))))))) is different from false [2023-11-06 22:03:07,002 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| c_~var_1_14_Pointer~0.base)) (.cse5 (select (select |c_#memory_int| c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) (and (forall ((v_ArrVal_1168 (Array Int Int)) (~var_1_14_Pointer~0.offset Int)) (let ((.cse3 (store (store |c_#memory_int| c_~var_1_14_Pointer~0.base (store .cse4 ~var_1_14_Pointer~0.offset .cse5)) c_~var_1_16_Pointer~0.base v_ArrVal_1168))) (or (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse1 (store (store (store .cse3 c_~var_1_7_Pointer~0.base (store (select .cse3 c_~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset (select (select .cse3 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse2 (mod (+ (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= 128 (mod (let ((.cse0 (store .cse1 c_~var_1_11_Pointer~0.base (store (select .cse1 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ (- 256) .cse2))))) (+ (select (select .cse0 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse0 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256))) (< .cse2 128))))) (< (select (select .cse3 c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 0)))) (forall ((v_ArrVal_1168 (Array Int Int)) (~var_1_14_Pointer~0.offset Int)) (let ((.cse9 (store (store |c_#memory_int| c_~var_1_14_Pointer~0.base (store .cse4 ~var_1_14_Pointer~0.offset .cse5)) c_~var_1_16_Pointer~0.base v_ArrVal_1168))) (or (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse8 (store (store (store .cse9 c_~var_1_7_Pointer~0.base (store (select .cse9 c_~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset (select (select .cse9 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse6 (mod (+ (select (select .cse8 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse8 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= .cse6 (mod (let ((.cse7 (store .cse8 c_~var_1_11_Pointer~0.base (store (select .cse8 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse6)))) (+ (select (select .cse7 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse7 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256))) (< 127 .cse6))))) (< (select (select .cse9 c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 0)))) (forall ((v_ArrVal_1168 (Array Int Int)) (~var_1_14_Pointer~0.offset Int)) (let ((.cse13 (store (store |c_#memory_int| c_~var_1_14_Pointer~0.base (store .cse4 ~var_1_14_Pointer~0.offset .cse5)) c_~var_1_16_Pointer~0.base v_ArrVal_1168))) (or (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse11 (store (store (store .cse13 c_~var_1_7_Pointer~0.base (store (select .cse13 c_~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset (select (select .cse13 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse12 (mod (+ (select (select .cse11 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse11 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (<= (mod (let ((.cse10 (store .cse11 c_~var_1_11_Pointer~0.base (store (select .cse11 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset .cse12)))) (+ (select (select .cse10 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset) (select (select .cse10 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) 256) 127)) (< 127 .cse12))))) (< (select (select .cse13 c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 0)))) (forall ((v_ArrVal_1168 (Array Int Int)) (~var_1_14_Pointer~0.offset Int)) (let ((.cse17 (store (store |c_#memory_int| c_~var_1_14_Pointer~0.base (store .cse4 ~var_1_14_Pointer~0.offset .cse5)) c_~var_1_16_Pointer~0.base v_ArrVal_1168))) (or (forall ((~var_1_7_Pointer~0.offset Int) (v_ArrVal_1172 (Array Int Int)) (v_ArrVal_1171 (Array Int Int))) (let ((.cse15 (store (store (store .cse17 c_~var_1_7_Pointer~0.base (store (select .cse17 c_~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset (select (select .cse17 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) c_~var_1_15_Pointer~0.base v_ArrVal_1171) c_~var_1_1_Pointer~0.base v_ArrVal_1172))) (let ((.cse16 (mod (+ (select (select .cse15 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse15 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) 256))) (or (forall ((~var_1_11_Pointer~0.offset Int)) (= (mod (let ((.cse14 (store .cse15 c_~var_1_11_Pointer~0.base (store (select .cse15 c_~var_1_11_Pointer~0.base) ~var_1_11_Pointer~0.offset (+ (- 256) .cse16))))) (+ (select (select .cse14 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset) (select (select .cse14 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) 256) .cse16)) (< .cse16 128))))) (< (select (select .cse17 c_~var_1_14_Pointer~0.base) ~var_1_14_Pointer~0.offset) 0)))))) is different from false [2023-11-06 22:03:07,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:07,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287701671] [2023-11-06 22:03:07,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:07,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089307696] [2023-11-06 22:03:07,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089307696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:07,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:07,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2023-11-06 22:03:07,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266325041] [2023-11-06 22:03:07,311 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:07,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-06 22:03:07,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-06 22:03:07,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=926, Unknown=4, NotChecked=260, Total=1332 [2023-11-06 22:03:07,314 INFO L87 Difference]: Start difference. First operand 115 states and 152 transitions. Second operand has 29 states, 27 states have (on average 3.0) internal successors, (81), 24 states have internal predecessors, (81), 8 states have call successors, (15), 8 states have call predecessors, (15), 9 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-11-06 22:03:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:12,971 INFO L93 Difference]: Finished difference Result 337 states and 437 transitions. [2023-11-06 22:03:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-06 22:03:12,973 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 3.0) internal successors, (81), 24 states have internal predecessors, (81), 8 states have call successors, (15), 8 states have call predecessors, (15), 9 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 129 [2023-11-06 22:03:12,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:12,975 INFO L225 Difference]: With dead ends: 337 [2023-11-06 22:03:12,975 INFO L226 Difference]: Without dead ends: 225 [2023-11-06 22:03:12,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=625, Invalid=2927, Unknown=4, NotChecked=476, Total=4032 [2023-11-06 22:03:12,978 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1429 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:12,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1407 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-06 22:03:12,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-06 22:03:13,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 143. [2023-11-06 22:03:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 120 states have (on average 1.2666666666666666) internal successors, (152), 120 states have internal predecessors, (152), 15 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:03:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 182 transitions. [2023-11-06 22:03:13,003 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 182 transitions. Word has length 129 [2023-11-06 22:03:13,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:13,004 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 182 transitions. [2023-11-06 22:03:13,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 3.0) internal successors, (81), 24 states have internal predecessors, (81), 8 states have call successors, (15), 8 states have call predecessors, (15), 9 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-11-06 22:03:13,004 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 182 transitions. [2023-11-06 22:03:13,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-06 22:03:13,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:13,006 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:13,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:13,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:13,213 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:13,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:13,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1899551816, now seen corresponding path program 1 times [2023-11-06 22:03:13,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:13,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015758357] [2023-11-06 22:03:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:13,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:13,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:13,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605937259] [2023-11-06 22:03:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:13,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:13,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:13,252 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:13,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db103ce-3da0-4d4a-88bc-0c0a0c3b9e83/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:03:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:13,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-06 22:03:13,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:14,789 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-06 22:03:14,789 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 62 [2023-11-06 22:03:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:14,821 INFO L322 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2023-11-06 22:03:14,821 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 73 [2023-11-06 22:03:14,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-11-06 22:03:14,861 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-06 22:03:15,043 INFO L322 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2023-11-06 22:03:15,043 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2023-11-06 22:03:15,068 INFO L322 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-06 22:03:15,068 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2023-11-06 22:03:15,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,276 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2023-11-06 22:03:15,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,356 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-06 22:03:15,356 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 47 [2023-11-06 22:03:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,486 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:03:15,486 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2023-11-06 22:03:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:15,612 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:03:15,613 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2023-11-06 22:03:16,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:16,417 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:16,417 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 183 treesize of output 155 [2023-11-06 22:03:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:03:16,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:17,063 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1291 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse0 (mod (select (select .cse1 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse2 (select (select .cse1 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (< 32767 .cse0) (not (= (select (select .cse1 c_~var_1_15_Pointer~0.base) c_~var_1_15_Pointer~0.offset) .cse2)) (= .cse0 .cse2))))) (forall ((v_ArrVal_1291 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse3 (mod (select (select .cse5 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse4 (select (select .cse5 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (< .cse3 32768) (= .cse3 (+ 65536 .cse4)) (not (= (select (select .cse5 c_~var_1_15_Pointer~0.base) c_~var_1_15_Pointer~0.offset) .cse4)))))) (forall ((v_ArrVal_1291 (Array Int Int))) (let ((.cse8 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse6 (mod (select (select .cse8 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse7 (select (select .cse8 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (= .cse6 (+ 65536 .cse7)) (not (= (select (select .cse8 c_~var_1_15_Pointer~0.base) c_~var_1_15_Pointer~0.offset) .cse7)) (= .cse6 .cse7)))))) is different from false [2023-11-06 22:03:17,159 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse0 (mod (select (select .cse2 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse1 (select (select .cse2 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (= .cse0 (+ .cse1 65536)) (= .cse1 .cse0) (not (= .cse1 (select (select .cse2 c_~var_1_15_Pointer~0.base) c_~var_1_15_Pointer~0.offset))))))) (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse3 (mod (select (select .cse5 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse4 (select (select .cse5 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (< 32767 .cse3) (= .cse4 .cse3) (not (= .cse4 (select (select .cse5 c_~var_1_15_Pointer~0.base) c_~var_1_15_Pointer~0.offset))))))) (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse7 (select (select .cse8 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset)) (.cse6 (mod (select (select .cse8 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536))) (or (= .cse6 (+ .cse7 65536)) (not (= .cse7 (select (select .cse8 c_~var_1_15_Pointer~0.base) c_~var_1_15_Pointer~0.offset))) (< .cse6 32768)))))) is different from false [2023-11-06 22:03:17,258 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_~var_1_15_Pointer~0.base)) (.cse4 (select (select |c_#memory_int| c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (and (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int)) (~var_1_15_Pointer~0.offset Int)) (let ((.cse2 (store (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base (store .cse3 ~var_1_15_Pointer~0.offset .cse4)) c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse1 (select (select .cse2 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset)) (.cse0 (mod (select (select .cse2 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536))) (or (= .cse0 (+ 65536 .cse1)) (not (= (select (select .cse2 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) .cse1)) (< .cse0 32768))))) (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int)) (~var_1_15_Pointer~0.offset Int)) (let ((.cse7 (store (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base (store .cse3 ~var_1_15_Pointer~0.offset .cse4)) c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse5 (mod (select (select .cse7 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse6 (select (select .cse7 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (= .cse5 (+ 65536 .cse6)) (not (= (select (select .cse7 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) .cse6)) (= .cse5 .cse6))))) (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int)) (~var_1_15_Pointer~0.offset Int)) (let ((.cse9 (store (store (store |c_#memory_int| c_~var_1_15_Pointer~0.base (store .cse3 ~var_1_15_Pointer~0.offset .cse4)) c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse8 (mod (select (select .cse9 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse10 (select (select .cse9 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (< 32767 .cse8) (not (= (select (select .cse9 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset) .cse10)) (= .cse8 .cse10))))))) is different from false [2023-11-06 22:03:17,326 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int)) (v_ArrVal_1288 (Array Int Int)) (~var_1_15_Pointer~0.offset Int)) (let ((.cse2 (store (store (let ((.cse3 (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_1288))) (store .cse3 c_~var_1_15_Pointer~0.base (store (select .cse3 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset (select (select .cse3 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset)))) c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse1 (mod (select (select .cse2 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse0 (select (select .cse2 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (= (+ .cse0 65536) .cse1) (= .cse0 .cse1) (not (= .cse0 (select (select .cse2 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset))))))) (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int)) (v_ArrVal_1288 (Array Int Int)) (~var_1_15_Pointer~0.offset Int)) (let ((.cse6 (store (store (let ((.cse7 (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_1288))) (store .cse7 c_~var_1_15_Pointer~0.base (store (select .cse7 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset (select (select .cse7 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset)))) c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse4 (mod (select (select .cse6 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse5 (select (select .cse6 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (< 32767 .cse4) (= .cse5 .cse4) (not (= .cse5 (select (select .cse6 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset))))))) (forall ((v_ArrVal_1291 (Array Int Int)) (v_ArrVal_1290 (Array Int Int)) (v_ArrVal_1288 (Array Int Int)) (~var_1_15_Pointer~0.offset Int)) (let ((.cse10 (store (store (let ((.cse11 (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_1288))) (store .cse11 c_~var_1_15_Pointer~0.base (store (select .cse11 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset (select (select .cse11 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset)))) c_~var_1_1_Pointer~0.base v_ArrVal_1290) c_~var_1_11_Pointer~0.base v_ArrVal_1291))) (let ((.cse9 (mod (select (select .cse10 c_~var_1_14_Pointer~0.base) c_~var_1_14_Pointer~0.offset) 65536)) (.cse8 (select (select .cse10 c_~var_1_16_Pointer~0.base) c_~var_1_16_Pointer~0.offset))) (or (= (+ .cse8 65536) .cse9) (< .cse9 32768) (not (= .cse8 (select (select .cse10 c_~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)))))))) is different from false [2023-11-06 22:03:17,589 INFO L322 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2023-11-06 22:03:17,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1344 treesize of output 744 [2023-11-06 22:03:27,558 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:27,654 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 985338416 treesize of output 969542512 [2023-11-06 22:03:48,146 WARN L293 SmtUtils]: Spent 20.30s on a formula simplification. DAG size of input: 58357 DAG size of output: 4393 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-06 22:03:48,888 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:48,895 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102956 treesize of output 100805 [2023-11-06 22:03:51,394 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:51,401 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103416 treesize of output 101885 [2023-11-06 22:03:54,699 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:54,705 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101867 treesize of output 97344 [2023-11-06 22:03:57,741 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:57,746 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97319 treesize of output 96064 [2023-11-06 22:04:00,362 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:04:00,367 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96039 treesize of output 93504 [2023-11-06 22:04:03,141 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:04:03,147 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94945 treesize of output 94058 [2023-11-06 22:04:06,173 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:04:06,178 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94040 treesize of output 92735 [2023-11-06 22:04:09,259 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:04:09,266 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92710 treesize of output 90075 [2023-11-06 22:04:12,264 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:04:12,272 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91566 treesize of output 90679 [2023-11-06 22:04:27,598 WARN L293 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 4137 DAG size of output: 4268 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)