./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb0766965719962bb88d82eca60f2d4be80ff0b6b6f05c2a75f9469a0fc9b6e7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:09:56,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:09:57,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:09:57,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:09:57,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:09:57,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:09:57,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:09:57,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:09:57,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:09:57,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:09:57,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:09:57,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:09:57,124 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:09:57,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:09:57,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:09:57,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:09:57,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:09:57,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:09:57,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:09:57,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:09:57,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:09:57,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:09:57,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:09:57,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:09:57,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:09:57,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:09:57,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:09:57,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:09:57,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:09:57,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:09:57,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:09:57,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:09:57,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:09:57,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:09:57,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:09:57,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:09:57,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:09:57,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:09:57,138 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:09:57,139 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_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb0766965719962bb88d82eca60f2d4be80ff0b6b6f05c2a75f9469a0fc9b6e7 [2023-11-06 23:09:57,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:09:57,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:09:57,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:09:57,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:09:57,479 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:09:57,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i [2023-11-06 23:10:00,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:10:01,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:10:01,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i [2023-11-06 23:10:01,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/data/875dcafde/7c1b8219bd0d469c85fb8c60c0fa1df7/FLAG8014f6123 [2023-11-06 23:10:01,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/data/875dcafde/7c1b8219bd0d469c85fb8c60c0fa1df7 [2023-11-06 23:10:01,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:10:01,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:10:01,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:10:01,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:10:01,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:10:01,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d2e6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01, skipping insertion in model container [2023-11-06 23:10:01,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:10:01,420 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_62e85fe6-e361-4410-b565-1b739f2c5327/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i[917,930] [2023-11-06 23:10:01,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:10:01,522 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:10:01,541 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_62e85fe6-e361-4410-b565-1b739f2c5327/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i[917,930] [2023-11-06 23:10:01,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:10:01,622 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:10:01,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01 WrapperNode [2023-11-06 23:10:01,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:10:01,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:10:01,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:10:01,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:10:01,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,710 INFO L138 Inliner]: procedures = 29, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 432 [2023-11-06 23:10:01,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:10:01,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:10:01,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:10:01,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:10:01,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:10:01,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:10:01,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:10:01,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:10:01,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (1/1) ... [2023-11-06 23:10:01,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:10:01,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:01,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:10:01,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:10:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:10:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 23:10:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:10:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 23:10:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:10:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-06 23:10:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:10:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:10:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:10:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:10:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:10:02,030 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:10:02,032 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:10:02,857 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:10:02,867 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:10:02,868 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:10:02,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:02 BoogieIcfgContainer [2023-11-06 23:10:02,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:10:02,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:10:02,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:10:02,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:10:02,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:10:01" (1/3) ... [2023-11-06 23:10:02,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e50a4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:10:02, skipping insertion in model container [2023-11-06 23:10:02,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:01" (2/3) ... [2023-11-06 23:10:02,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e50a4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:10:02, skipping insertion in model container [2023-11-06 23:10:02,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:02" (3/3) ... [2023-11-06 23:10:02,886 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-37.i [2023-11-06 23:10:02,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:10:02,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:10:02,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:10:02,993 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e771aa0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:10:02,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:10:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 86 states have internal predecessors, (122), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 23:10:03,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:03,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:03,027 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:03,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:03,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:03,039 INFO L85 PathProgramCache]: Analyzing trace with hash -851348922, now seen corresponding path program 1 times [2023-11-06 23:10:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:03,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71306234] [2023-11-06 23:10:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:03,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71306234] [2023-11-06 23:10:03,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 23:10:03,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427430990] [2023-11-06 23:10:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:03,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:03,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:03,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:10:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 23:10:03,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-06 23:10:04,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:04,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427430990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:04,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:04,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:10:04,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964644418] [2023-11-06 23:10:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:04,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:10:04,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:04,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:10:04,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:10:04,106 INFO L87 Difference]: Start difference. First operand has 103 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 86 states have internal predecessors, (122), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 23:10:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:04,155 INFO L93 Difference]: Finished difference Result 199 states and 313 transitions. [2023-11-06 23:10:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:10:04,158 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2023-11-06 23:10:04,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:04,167 INFO L225 Difference]: With dead ends: 199 [2023-11-06 23:10:04,168 INFO L226 Difference]: Without dead ends: 99 [2023-11-06 23:10:04,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:10:04,177 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:04,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:10:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-06 23:10:04,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-06 23:10:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 82 states have internal predecessors, (115), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 23:10:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 145 transitions. [2023-11-06 23:10:04,238 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 145 transitions. Word has length 124 [2023-11-06 23:10:04,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:04,239 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 145 transitions. [2023-11-06 23:10:04,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 23:10:04,240 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 145 transitions. [2023-11-06 23:10:04,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:04,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:04,245 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:04,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:04,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 23:10:04,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:04,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:04,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1371063400, now seen corresponding path program 1 times [2023-11-06 23:10:04,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:04,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767928425] [2023-11-06 23:10:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:04,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:04,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:04,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186111774] [2023-11-06 23:10:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:04,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:04,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:04,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:04,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:10:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:04,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:10:04,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 23:10:05,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:05,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767928425] [2023-11-06 23:10:05,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:05,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186111774] [2023-11-06 23:10:05,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186111774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:05,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:05,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:10:05,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895877820] [2023-11-06 23:10:05,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:05,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:10:05,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:10:05,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:10:05,025 INFO L87 Difference]: Start difference. First operand 99 states and 145 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 23:10:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:05,113 INFO L93 Difference]: Finished difference Result 203 states and 298 transitions. [2023-11-06 23:10:05,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:05,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-11-06 23:10:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:05,118 INFO L225 Difference]: With dead ends: 203 [2023-11-06 23:10:05,118 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 23:10:05,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:05,122 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 12 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:05,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 420 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:10:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 23:10:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2023-11-06 23:10:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 23:10:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2023-11-06 23:10:05,142 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 124 [2023-11-06 23:10:05,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:05,145 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2023-11-06 23:10:05,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 23:10:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2023-11-06 23:10:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:05,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:05,149 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:05,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:05,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:05,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:05,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash 403943962, now seen corresponding path program 1 times [2023-11-06 23:10:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300051830] [2023-11-06 23:10:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:05,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:05,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:05,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241708108] [2023-11-06 23:10:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:05,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:05,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:05,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:05,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:10:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:05,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:10:05,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 23:10:05,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:10:05,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:05,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300051830] [2023-11-06 23:10:05,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:05,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241708108] [2023-11-06 23:10:05,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241708108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:05,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:05,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:10:05,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882443531] [2023-11-06 23:10:05,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:05,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:10:05,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:05,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:10:05,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:10:05,845 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 23:10:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:05,896 INFO L93 Difference]: Finished difference Result 203 states and 296 transitions. [2023-11-06 23:10:05,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:05,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-11-06 23:10:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:05,903 INFO L225 Difference]: With dead ends: 203 [2023-11-06 23:10:05,903 INFO L226 Difference]: Without dead ends: 105 [2023-11-06 23:10:05,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:05,910 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 3 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:05,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 419 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:10:05,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-06 23:10:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2023-11-06 23:10:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 23:10:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2023-11-06 23:10:05,942 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 124 [2023-11-06 23:10:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:05,944 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2023-11-06 23:10:05,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 23:10:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2023-11-06 23:10:05,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:05,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:05,950 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:05,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:06,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:06,159 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:06,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash 405791004, now seen corresponding path program 1 times [2023-11-06 23:10:06,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:06,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542041008] [2023-11-06 23:10:06,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:06,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:06,219 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:06,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314321067] [2023-11-06 23:10:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:06,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:06,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:06,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:06,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:10:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:06,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-06 23:10:06,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:07,702 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:08,233 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:10:08,615 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:10:08,979 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:10:09,210 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:10:09,489 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2023-11-06 23:10:09,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:09,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-06 23:10:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 168 proven. 122 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-06 23:10:09,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:10:09,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:09,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542041008] [2023-11-06 23:10:09,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:09,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314321067] [2023-11-06 23:10:09,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314321067] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:10:09,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:10:09,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-06 23:10:09,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700686113] [2023-11-06 23:10:09,661 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 23:10:09,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:10:09,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:10:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:10:09,664 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 23:10:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:10,593 INFO L93 Difference]: Finished difference Result 225 states and 322 transitions. [2023-11-06 23:10:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:10:10,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2023-11-06 23:10:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:10,598 INFO L225 Difference]: With dead ends: 225 [2023-11-06 23:10:10,599 INFO L226 Difference]: Without dead ends: 125 [2023-11-06 23:10:10,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-06 23:10:10,601 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 121 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:10,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 424 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:10:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-06 23:10:10,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2023-11-06 23:10:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 97 states have internal predecessors, (128), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 23:10:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 170 transitions. [2023-11-06 23:10:10,636 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 170 transitions. Word has length 124 [2023-11-06 23:10:10,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:10,637 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 170 transitions. [2023-11-06 23:10:10,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 23:10:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 170 transitions. [2023-11-06 23:10:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:10,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:10,648 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:10,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:10,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:10,858 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:10,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash 546339614, now seen corresponding path program 1 times [2023-11-06 23:10:10,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:10,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021837915] [2023-11-06 23:10:10,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:10,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:10,942 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853649298] [2023-11-06 23:10:10,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:10,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:10,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:10,945 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:10,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:10:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:11,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-06 23:10:11,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:11,554 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:12,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:10:13,326 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:10:14,107 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 23:10:15,073 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-11-06 23:10:15,889 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-11-06 23:10:16,631 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-11-06 23:10:17,208 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2023-11-06 23:10:17,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:17,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:17,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:17,948 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2023-11-06 23:10:18,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:18,265 INFO L322 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-06 23:10:18,266 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 24 [2023-11-06 23:10:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 140 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-06 23:10:18,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:10:18,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:18,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021837915] [2023-11-06 23:10:18,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:10:18,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853649298] [2023-11-06 23:10:18,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853649298] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:10:18,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:10:18,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-06 23:10:18,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659973855] [2023-11-06 23:10:18,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 23:10:18,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:10:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:18,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:10:18,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-06 23:10:18,785 INFO L87 Difference]: Start difference. First operand 120 states and 170 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 23:10:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:20,491 INFO L93 Difference]: Finished difference Result 246 states and 336 transitions. [2023-11-06 23:10:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 23:10:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2023-11-06 23:10:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:20,496 INFO L225 Difference]: With dead ends: 246 [2023-11-06 23:10:20,496 INFO L226 Difference]: Without dead ends: 142 [2023-11-06 23:10:20,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2023-11-06 23:10:20,498 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 111 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:20,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 506 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 23:10:20,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-06 23:10:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 115. [2023-11-06 23:10:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 23:10:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 156 transitions. [2023-11-06 23:10:20,536 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 156 transitions. Word has length 124 [2023-11-06 23:10:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:20,537 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 156 transitions. [2023-11-06 23:10:20,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-06 23:10:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 156 transitions. [2023-11-06 23:10:20,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 23:10:20,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:20,539 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:20,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:20,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:20,746 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:20,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:20,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1259098720, now seen corresponding path program 1 times [2023-11-06 23:10:20,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:20,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202694820] [2023-11-06 23:10:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:20,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:20,796 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:10:20,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462099580] [2023-11-06 23:10:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:20,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:10:20,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:20,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:10:20,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e85fe6-e361-4410-b565-1b739f2c5327/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 23:10:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:21,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-06 23:10:21,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:23,147 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:24,045 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:24,813 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:25,564 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:26,317 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:26,907 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:27,640 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:27,800 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:10:27,880 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 23:10:27,881 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 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 23:10:28,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,021 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 23:10:28,022 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 32 [2023-11-06 23:10:28,210 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-06 23:10:28,210 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 110 treesize of output 91 [2023-11-06 23:10:28,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,452 INFO L322 Elim1Store]: treesize reduction 212, result has 26.6 percent of original size [2023-11-06 23:10:28,453 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 74 treesize of output 166 [2023-11-06 23:10:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:10:28,978 INFO L322 Elim1Store]: treesize reduction 28, result has 39.1 percent of original size [2023-11-06 23:10:28,979 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 52 [2023-11-06 23:11:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:18,899 INFO L322 Elim1Store]: treesize reduction 306, result has 35.3 percent of original size [2023-11-06 23:11:18,900 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 74 treesize of output 248 [2023-11-06 23:11:19,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:19,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:19,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:19,851 INFO L322 Elim1Store]: treesize reduction 64, result has 35.4 percent of original size [2023-11-06 23:11:19,852 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 59 treesize of output 76