./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2274e339d27706db1309e66a8dc56713dc7b235e9296f50d0c5bcd9c8dae4a5d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:30,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:30,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:30,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:30,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:31,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:31,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:31,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:31,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:31,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:31,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:31,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:31,031 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:31,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:31,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:31,033 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:31,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:31,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:31,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:31,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:31,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:31,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:31,038 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:31,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:31,039 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:31,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:31,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:31,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:31,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:31,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:31,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:31,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:31,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:31,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:31,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:31,045 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:31,045 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:31,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:31,046 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:31,047 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_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2274e339d27706db1309e66a8dc56713dc7b235e9296f50d0c5bcd9c8dae4a5d [2023-11-12 02:15:31,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:31,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:31,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:31,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:31,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:31,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i [2023-11-12 02:15:34,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:35,027 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:35,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i [2023-11-12 02:15:35,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/data/4cebc9c60/a8e20345a1544cc1be3fdb465c27fb13/FLAGb334be22f [2023-11-12 02:15:35,059 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/data/4cebc9c60/a8e20345a1544cc1be3fdb465c27fb13 [2023-11-12 02:15:35,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:35,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:35,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:35,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:35,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:35,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a560b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35, skipping insertion in model container [2023-11-12 02:15:35,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,124 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:35,299 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_5c7952bd-f316-42f6-980e-d6db52bcfdb2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i[917,930] [2023-11-12 02:15:35,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:35,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:35,392 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_5c7952bd-f316-42f6-980e-d6db52bcfdb2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-40.i[917,930] [2023-11-12 02:15:35,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:35,453 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:35,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35 WrapperNode [2023-11-12 02:15:35,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:35,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:35,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:35,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:35,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,533 INFO L138 Inliner]: procedures = 29, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 431 [2023-11-12 02:15:35,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:35,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:35,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:35,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:35,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,588 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:35,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:35,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:35,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:35,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (1/1) ... [2023-11-12 02:15:35,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:35,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:35,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 02:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 02:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-12 02:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:15:35,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:35,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:35,903 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:35,906 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:36,458 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:36,467 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:36,467 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:15:36,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:36 BoogieIcfgContainer [2023-11-12 02:15:36,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:36,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:36,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:36,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:36,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:35" (1/3) ... [2023-11-12 02:15:36,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e0e538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:36, skipping insertion in model container [2023-11-12 02:15:36,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:35" (2/3) ... [2023-11-12 02:15:36,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e0e538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:36, skipping insertion in model container [2023-11-12 02:15:36,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:36" (3/3) ... [2023-11-12 02:15:36,479 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-40.i [2023-11-12 02:15:36,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:36,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:36,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:36,574 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b076cd3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:36,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:36,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 02:15:36,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:36,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:36,600 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:36,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:36,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash -854135564, now seen corresponding path program 1 times [2023-11-12 02:15:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:36,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141014951] [2023-11-12 02:15:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:36,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:37,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141014951] [2023-11-12 02:15:37,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:15:37,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931209017] [2023-11-12 02:15:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:37,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:37,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:37,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:37,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:15:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:37,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:15:37,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-11-12 02:15:37,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:37,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931209017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:37,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:37,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:15:37,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700094200] [2023-11-12 02:15:37,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:37,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:37,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:37,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:37,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:37,642 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 02:15:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:37,680 INFO L93 Difference]: Finished difference Result 215 states and 343 transitions. [2023-11-12 02:15:37,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:37,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2023-11-12 02:15:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:37,692 INFO L225 Difference]: With dead ends: 215 [2023-11-12 02:15:37,692 INFO L226 Difference]: Without dead ends: 107 [2023-11-12 02:15:37,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:37,700 INFO L413 NwaCegarLoop]: 158 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, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:37,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-12 02:15:37,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-12 02:15:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 02:15:37,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 158 transitions. [2023-11-12 02:15:37,755 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 158 transitions. Word has length 150 [2023-11-12 02:15:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:37,756 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 158 transitions. [2023-11-12 02:15:37,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 02:15:37,757 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 158 transitions. [2023-11-12 02:15:37,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:37,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:37,761 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:37,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:37,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:15:37,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:37,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:37,970 INFO L85 PathProgramCache]: Analyzing trace with hash 11151942, now seen corresponding path program 1 times [2023-11-12 02:15:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:37,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785330131] [2023-11-12 02:15:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:38,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:38,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785330131] [2023-11-12 02:15:38,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:15:38,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899530866] [2023-11-12 02:15:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:38,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:38,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:38,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:38,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:15:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:38,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:38,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-12 02:15:38,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:38,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899530866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:38,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:38,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:38,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553471558] [2023-11-12 02:15:38,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:38,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:38,596 INFO L87 Difference]: Start difference. First operand 107 states and 158 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 02:15:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:38,692 INFO L93 Difference]: Finished difference Result 217 states and 322 transitions. [2023-11-12 02:15:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:38,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2023-11-12 02:15:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:38,701 INFO L225 Difference]: With dead ends: 217 [2023-11-12 02:15:38,702 INFO L226 Difference]: Without dead ends: 113 [2023-11-12 02:15:38,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:38,708 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 10 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 462 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 [2023-11-12 02:15:38,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 462 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:38,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-12 02:15:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2023-11-12 02:15:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 02:15:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2023-11-12 02:15:38,740 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 150 [2023-11-12 02:15:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:38,743 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2023-11-12 02:15:38,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 02:15:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2023-11-12 02:15:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:38,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:38,756 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:38,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:38,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:38,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:38,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1950422716, now seen corresponding path program 1 times [2023-11-12 02:15:38,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:38,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454385164] [2023-11-12 02:15:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:38,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:39,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:39,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722761295] [2023-11-12 02:15:39,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:39,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:39,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:39,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:39,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:15:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:39,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:39,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-12 02:15:39,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:39,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454385164] [2023-11-12 02:15:39,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:39,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722761295] [2023-11-12 02:15:39,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722761295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:39,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:39,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:39,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906953796] [2023-11-12 02:15:39,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:39,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:39,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:39,456 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 02:15:39,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:39,498 INFO L93 Difference]: Finished difference Result 223 states and 328 transitions. [2023-11-12 02:15:39,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:39,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-11-12 02:15:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:39,501 INFO L225 Difference]: With dead ends: 223 [2023-11-12 02:15:39,502 INFO L226 Difference]: Without dead ends: 117 [2023-11-12 02:15:39,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:39,504 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 12 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 459 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 [2023-11-12 02:15:39,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 459 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-12 02:15:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 111. [2023-11-12 02:15:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 02:15:39,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2023-11-12 02:15:39,519 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 150 [2023-11-12 02:15:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:39,520 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2023-11-12 02:15:39,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 02:15:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2023-11-12 02:15:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:39,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:39,524 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:39,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:39,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:39,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:39,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash -175415354, now seen corresponding path program 1 times [2023-11-12 02:15:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:39,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439658057] [2023-11-12 02:15:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:39,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:39,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:39,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582266504] [2023-11-12 02:15:39,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:39,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:39,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:39,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:39,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:15:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:40,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-12 02:15:40,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:40,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:40,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439658057] [2023-11-12 02:15:40,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:40,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582266504] [2023-11-12 02:15:40,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582266504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:40,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:40,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:40,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411886549] [2023-11-12 02:15:40,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:40,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:40,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:40,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:40,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:40,190 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 02:15:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:40,244 INFO L93 Difference]: Finished difference Result 223 states and 326 transitions. [2023-11-12 02:15:40,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:40,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-11-12 02:15:40,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:40,247 INFO L225 Difference]: With dead ends: 223 [2023-11-12 02:15:40,248 INFO L226 Difference]: Without dead ends: 115 [2023-11-12 02:15:40,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:40,250 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 458 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 [2023-11-12 02:15:40,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 458 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-12 02:15:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2023-11-12 02:15:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 02:15:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 164 transitions. [2023-11-12 02:15:40,264 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 164 transitions. Word has length 150 [2023-11-12 02:15:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:40,265 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 164 transitions. [2023-11-12 02:15:40,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 02:15:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 164 transitions. [2023-11-12 02:15:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:40,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:40,268 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:40,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:40,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-12 02:15:40,477 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:40,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:40,478 INFO L85 PathProgramCache]: Analyzing trace with hash -173568312, now seen corresponding path program 1 times [2023-11-12 02:15:40,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:40,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537912294] [2023-11-12 02:15:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:40,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:40,559 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:40,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744542766] [2023-11-12 02:15:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:40,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:40,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:40,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:40,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:15:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:40,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:40,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-12 02:15:40,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:40,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:40,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537912294] [2023-11-12 02:15:40,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:40,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744542766] [2023-11-12 02:15:40,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744542766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:40,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:40,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:40,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472782691] [2023-11-12 02:15:40,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:40,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:40,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:40,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:40,894 INFO L87 Difference]: Start difference. First operand 113 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 02:15:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:40,940 INFO L93 Difference]: Finished difference Result 251 states and 366 transitions. [2023-11-12 02:15:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-11-12 02:15:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:40,947 INFO L225 Difference]: With dead ends: 251 [2023-11-12 02:15:40,947 INFO L226 Difference]: Without dead ends: 141 [2023-11-12 02:15:40,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:15:40,949 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 48 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 452 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 [2023-11-12 02:15:40,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 452 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-12 02:15:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 115. [2023-11-12 02:15:40,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 02:15:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2023-11-12 02:15:40,976 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 166 transitions. Word has length 150 [2023-11-12 02:15:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:40,977 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 166 transitions. [2023-11-12 02:15:40,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-12 02:15:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 166 transitions. [2023-11-12 02:15:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 02:15:40,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:40,979 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:40,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:41,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:41,192 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:41,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash 429648383, now seen corresponding path program 1 times [2023-11-12 02:15:41,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:41,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913929383] [2023-11-12 02:15:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:41,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:41,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:15:41,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474641551] [2023-11-12 02:15:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:41,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:41,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:41,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:15:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:41,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-12 02:15:41,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:46,690 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 [2023-11-12 02:15:47,977 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 [2023-11-12 02:15:49,222 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 34 treesize of output 25 [2023-11-12 02:15:49,987 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 34 treesize of output 25 [2023-11-12 02:15:50,974 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 34 treesize of output 25 [2023-11-12 02:15:52,030 INFO L322 Elim1Store]: treesize reduction 45, result has 28.6 percent of original size [2023-11-12 02:15:52,031 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 90 [2023-11-12 02:15:52,127 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2023-11-12 02:15:52,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:52,478 INFO L322 Elim1Store]: treesize reduction 424, result has 14.9 percent of original size [2023-11-12 02:15:52,479 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 120 treesize of output 264 [2023-11-12 02:15:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,225 INFO L322 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2023-11-12 02:15:55,226 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 112 [2023-11-12 02:15:55,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,456 INFO L322 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-12 02:15:55,457 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 139 treesize of output 112 [2023-11-12 02:15:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,645 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-12 02:15:55,645 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 103 [2023-11-12 02:15:55,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,687 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:15:55,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,698 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:15:55,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 34 [2023-11-12 02:15:55,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,757 INFO L322 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-12 02:15:55,757 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 87 treesize of output 62 [2023-11-12 02:15:55,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:55,815 INFO L322 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-12 02:15:55,816 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 96 treesize of output 71 [2023-11-12 02:15:56,804 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-11-12 02:15:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,049 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 46 treesize of output 38 [2023-11-12 02:15:57,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,235 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 55 treesize of output 41 [2023-11-12 02:15:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:15:57,605 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 52 [2023-11-12 02:15:57,677 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 312 proven. 160 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 02:15:57,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:58,621 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_687 Int) (v_ArrVal_680 Int) (~WrapperStruct00_var_1_16_Pointer~0.base Int) (~WrapperStruct00_var_1_16_Pointer~0.offset Int) (v_ArrVal_683 (Array Int Int))) (or (not (= v_ArrVal_683 (store (select |c_#memory_int| c_~WrapperStruct00_var_1_19_Pointer~0.base) c_~WrapperStruct00_var_1_19_Pointer~0.offset (select v_ArrVal_683 c_~WrapperStruct00_var_1_19_Pointer~0.offset)))) (let ((.cse0 (let ((.cse1 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_int| c_~WrapperStruct00_var_1_19_Pointer~0.base v_ArrVal_683))) (store .cse4 c_~WrapperStruct00_var_1_20_Pointer~0.base (store (select .cse4 c_~WrapperStruct00_var_1_20_Pointer~0.base) c_~WrapperStruct00_var_1_20_Pointer~0.offset (select (select .cse4 ~WrapperStruct00_var_1_16_Pointer~0.base) ~WrapperStruct00_var_1_16_Pointer~0.offset)))))) (store .cse3 c_~WrapperStruct00_var_1_21_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_21_Pointer~0.base) c_~WrapperStruct00_var_1_21_Pointer~0.offset v_ArrVal_680))))) (store .cse2 c_~WrapperStruct00_var_1_7_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_7_Pointer~0.base) c_~WrapperStruct00_var_1_7_Pointer~0.offset (+ (mod (select (select .cse2 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset) 256) (* (- 1) (mod (select (select .cse2 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 256)))))))) (store .cse1 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset v_ArrVal_687))))) (= (mod (+ (* 255 (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset)) (select (select .cse0 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset)) 256) (mod (select (select .cse0 c_~WrapperStruct00_var_1_7_Pointer~0.base) c_~WrapperStruct00_var_1_7_Pointer~0.offset) 256))))) is different from false [2023-11-12 02:15:58,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:58,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913929383] [2023-11-12 02:15:58,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:15:58,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474641551] [2023-11-12 02:15:58,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474641551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:58,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:58,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-12 02:15:58,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096387735] [2023-11-12 02:15:58,761 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:58,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-12 02:15:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:58,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-12 02:15:58,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=548, Unknown=1, NotChecked=48, Total=702 [2023-11-12 02:15:58,764 INFO L87 Difference]: Start difference. First operand 115 states and 166 transitions. Second operand has 20 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 states have internal predecessors, (76), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-12 02:16:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:02,586 INFO L93 Difference]: Finished difference Result 441 states and 629 transitions. [2023-11-12 02:16:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-12 02:16:02,589 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 states have internal predecessors, (76), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) Word has length 153 [2023-11-12 02:16:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:02,593 INFO L225 Difference]: With dead ends: 441 [2023-11-12 02:16:02,594 INFO L226 Difference]: Without dead ends: 329 [2023-11-12 02:16:02,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=420, Invalid=1745, Unknown=1, NotChecked=90, Total=2256 [2023-11-12 02:16:02,596 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 689 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:02,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 981 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:16:02,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-12 02:16:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 221. [2023-11-12 02:16:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 188 states have (on average 1.3936170212765957) internal successors, (262), 189 states have internal predecessors, (262), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-12 02:16:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 320 transitions. [2023-11-12 02:16:02,627 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 320 transitions. Word has length 153 [2023-11-12 02:16:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:02,628 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 320 transitions. [2023-11-12 02:16:02,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 states have internal predecessors, (76), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 4 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-12 02:16:02,628 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 320 transitions. [2023-11-12 02:16:02,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-12 02:16:02,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:02,631 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:02,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:02,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:16:02,844 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:16:02,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash -591419971, now seen corresponding path program 1 times [2023-11-12 02:16:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781778192] [2023-11-12 02:16:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:02,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:16:02,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559981166] [2023-11-12 02:16:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:02,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:16:02,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:02,886 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:16:02,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7952bd-f316-42f6-980e-d6db52bcfdb2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:16:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:03,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-12 02:16:03,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:03,689 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 [2023-11-12 02:16:04,590 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 [2023-11-12 02:16:05,616 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 [2023-11-12 02:16:07,356 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 33 treesize of output 24 [2023-11-12 02:16:09,237 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 41 treesize of output 35 [2023-11-12 02:16:10,268 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 41 treesize of output 35 [2023-11-12 02:16:11,223 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 41 treesize of output 35 [2023-11-12 02:16:12,024 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 41 treesize of output 35 [2023-11-12 02:16:13,120 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 41 treesize of output 35 [2023-11-12 02:16:14,348 INFO L322 Elim1Store]: treesize reduction 58, result has 23.7 percent of original size [2023-11-12 02:16:14,349 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 108 [2023-11-12 02:16:14,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,453 INFO L322 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2023-11-12 02:16:14,453 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 111 [2023-11-12 02:16:14,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:14,699 INFO L322 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2023-11-12 02:16:14,700 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 50 treesize of output 123 [2023-11-12 02:16:15,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:15,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:15,154 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 39 treesize of output 23 [2023-11-12 02:16:15,239 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 52 [2023-11-12 02:16:15,292 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 52 [2023-11-12 02:16:15,431 INFO L322 Elim1Store]: treesize reduction 32, result has 52.2 percent of original size [2023-11-12 02:16:15,432 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 172 treesize of output 158 [2023-11-12 02:16:16,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:16,417 INFO L322 Elim1Store]: treesize reduction 87, result has 23.0 percent of original size [2023-11-12 02:16:16,417 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 54 treesize of output 80 [2023-11-12 02:16:16,530 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 0 case distinctions, treesize of input 103 treesize of output 76 [2023-11-12 02:16:17,782 INFO L322 Elim1Store]: treesize reduction 88, result has 17.0 percent of original size [2023-11-12 02:16:17,782 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 182 treesize of output 182 [2023-11-12 02:16:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:17,926 INFO L322 Elim1Store]: treesize reduction 46, result has 39.5 percent of original size [2023-11-12 02:16:17,927 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 185 [2023-11-12 02:16:18,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:18,194 INFO L322 Elim1Store]: treesize reduction 181, result has 19.6 percent of original size [2023-11-12 02:16:18,195 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 67 treesize of output 197 [2023-11-12 02:16:19,199 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 61 treesize of output 30 [2023-11-12 02:16:19,297 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-12 02:16:19,297 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 15 [2023-11-12 02:16:19,442 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-12 02:16:19,443 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 38 [2023-11-12 02:16:19,544 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 29 [2023-11-12 02:16:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,566 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 43 treesize of output 25 [2023-11-12 02:16:19,624 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-11-12 02:16:19,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,634 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:16:19,637 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 12 [2023-11-12 02:16:19,772 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 213 [2023-11-12 02:16:19,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,831 INFO L322 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-12 02:16:19,832 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 51 treesize of output 31 [2023-11-12 02:16:19,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:19,878 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-12 02:16:19,878 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 48 treesize of output 37 [2023-11-12 02:16:20,503 INFO L322 Elim1Store]: treesize reduction 129, result has 12.2 percent of original size [2023-11-12 02:16:20,504 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 238 treesize of output 223 [2023-11-12 02:16:20,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,578 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:16:20,646 INFO L322 Elim1Store]: treesize reduction 46, result has 39.5 percent of original size [2023-11-12 02:16:20,646 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 14 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 239 [2023-11-12 02:16:20,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:20,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:21,100 INFO L322 Elim1Store]: treesize reduction 253, result has 15.7 percent of original size [2023-11-12 02:16:21,100 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 88 treesize of output 265