./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fd0aba5d9be2820550e57012fb4e12f76fe291bb253443319d08539e5b2ba1a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:56,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:56,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:55:56,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:56,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:56,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:56,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:56,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:56,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:56,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:56,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:56,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:56,483 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:56,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:56,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:56,487 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:56,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:56,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:56,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:56,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:56,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:56,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:56,491 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:56,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:56,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:56,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:56,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:56,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:56,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:56,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:56,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:56,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:56,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:56,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:56,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:56,499 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:56,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:56,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:56,500 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:56,501 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_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fd0aba5d9be2820550e57012fb4e12f76fe291bb253443319d08539e5b2ba1a [2023-11-19 07:55:56,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:56,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:56,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:56,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:56,915 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:56,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/list-simple/sll2n_update_all.i [2023-11-19 07:56:00,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:01,054 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:01,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/sv-benchmarks/c/list-simple/sll2n_update_all.i [2023-11-19 07:56:01,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/data/5809ea48b/42a17a35048948708dc76611db85adc2/FLAG0ef708518 [2023-11-19 07:56:01,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/data/5809ea48b/42a17a35048948708dc76611db85adc2 [2023-11-19 07:56:01,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:01,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:01,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:01,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:01,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:01,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3542c69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01, skipping insertion in model container [2023-11-19 07:56:01,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,217 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:01,588 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_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/sv-benchmarks/c/list-simple/sll2n_update_all.i[24218,24231] [2023-11-19 07:56:01,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:01,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:01,658 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_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/sv-benchmarks/c/list-simple/sll2n_update_all.i[24218,24231] [2023-11-19 07:56:01,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:01,698 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:01,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01 WrapperNode [2023-11-19 07:56:01,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:01,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:01,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:01,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:01,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,761 INFO L138 Inliner]: procedures = 126, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-11-19 07:56:01,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:01,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:01,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:01,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:01,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:01,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:01,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:01,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:01,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (1/1) ... [2023-11-19 07:56:01,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:01,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:01,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:01,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:56:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:56:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:56:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:56:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:02,168 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:02,183 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:02,469 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:02,487 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:02,487 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:56:02,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:02 BoogieIcfgContainer [2023-11-19 07:56:02,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:02,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:02,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:02,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:02,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:01" (1/3) ... [2023-11-19 07:56:02,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b090be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:02, skipping insertion in model container [2023-11-19 07:56:02,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:01" (2/3) ... [2023-11-19 07:56:02,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b090be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:02, skipping insertion in model container [2023-11-19 07:56:02,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:02" (3/3) ... [2023-11-19 07:56:02,500 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_update_all.i [2023-11-19 07:56:02,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:02,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:56:02,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:02,606 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;@4ba989f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:02,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:56:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:56:02,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:02,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:02,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:02,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1517700322, now seen corresponding path program 1 times [2023-11-19 07:56:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:02,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499805746] [2023-11-19 07:56:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:02,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:03,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:03,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499805746] [2023-11-19 07:56:03,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499805746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:03,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:03,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:03,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340749702] [2023-11-19 07:56:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:03,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:03,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:03,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:03,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:03,089 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 29 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:03,134 INFO L93 Difference]: Finished difference Result 58 states and 84 transitions. [2023-11-19 07:56:03,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 07:56:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:03,147 INFO L225 Difference]: With dead ends: 58 [2023-11-19 07:56:03,147 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 07:56:03,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:03,154 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:03,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 65 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 07:56:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2023-11-19 07:56:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-11-19 07:56:03,192 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2023-11-19 07:56:03,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:03,193 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-11-19 07:56:03,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,194 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-19 07:56:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:56:03,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:03,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:03,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:03,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:03,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:03,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1110902602, now seen corresponding path program 1 times [2023-11-19 07:56:03,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:03,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745073422] [2023-11-19 07:56:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:03,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:03,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:03,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745073422] [2023-11-19 07:56:03,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745073422] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:03,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316329295] [2023-11-19 07:56:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:03,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:03,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:03,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:03,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:56:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:03,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:03,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:03,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:03,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316329295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:03,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:03,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-11-19 07:56:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906444244] [2023-11-19 07:56:03,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:03,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:56:03,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:56:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:03,764 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:03,792 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2023-11-19 07:56:03,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-19 07:56:03,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:03,794 INFO L225 Difference]: With dead ends: 45 [2023-11-19 07:56:03,795 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 07:56:03,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:03,797 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:03,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 07:56:03,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 07:56:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-11-19 07:56:03,806 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18 [2023-11-19 07:56:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:03,807 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-11-19 07:56:03,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-11-19 07:56:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:56:03,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:03,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:03,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:04,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:04,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:04,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash 266893854, now seen corresponding path program 2 times [2023-11-19 07:56:04,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:04,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637164618] [2023-11-19 07:56:04,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:04,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:04,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:04,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637164618] [2023-11-19 07:56:04,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637164618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:04,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:04,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:04,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887182803] [2023-11-19 07:56:04,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:04,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:04,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:04,304 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:04,356 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2023-11-19 07:56:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:04,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-19 07:56:04,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:04,361 INFO L225 Difference]: With dead ends: 51 [2023-11-19 07:56:04,362 INFO L226 Difference]: Without dead ends: 42 [2023-11-19 07:56:04,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:04,365 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 45 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:04,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 41 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:04,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-19 07:56:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2023-11-19 07:56:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-11-19 07:56:04,382 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 23 [2023-11-19 07:56:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:04,383 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-11-19 07:56:04,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,383 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-19 07:56:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:56:04,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:04,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:04,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:56:04,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:04,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1444962716, now seen corresponding path program 1 times [2023-11-19 07:56:04,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:04,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501487721] [2023-11-19 07:56:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:04,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:04,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:04,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501487721] [2023-11-19 07:56:04,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501487721] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:04,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542160322] [2023-11-19 07:56:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:04,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:04,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:04,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:04,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:56:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:56:04,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:05,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542160322] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:05,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:05,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-19 07:56:05,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249171891] [2023-11-19 07:56:05,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:05,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:56:05,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:05,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:56:05,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:56:05,193 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:05,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:05,285 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2023-11-19 07:56:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:05,286 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-19 07:56:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:05,287 INFO L225 Difference]: With dead ends: 53 [2023-11-19 07:56:05,287 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 07:56:05,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:56:05,289 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 63 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:05,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 64 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 07:56:05,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2023-11-19 07:56:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-11-19 07:56:05,310 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 28 [2023-11-19 07:56:05,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:05,310 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-11-19 07:56:05,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:05,311 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-19 07:56:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:56:05,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:05,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:05,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:05,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:05,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:05,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1623423198, now seen corresponding path program 2 times [2023-11-19 07:56:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:05,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480097957] [2023-11-19 07:56:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:05,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:05,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480097957] [2023-11-19 07:56:05,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480097957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774844424] [2023-11-19 07:56:05,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:05,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:05,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:05,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:05,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:56:05,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:56:05,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:05,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:05,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:05,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:06,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774844424] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:06,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:06,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-11-19 07:56:06,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685097790] [2023-11-19 07:56:06,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:06,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:56:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:56:06,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:06,023 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:06,102 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2023-11-19 07:56:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:06,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-11-19 07:56:06,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:06,107 INFO L225 Difference]: With dead ends: 58 [2023-11-19 07:56:06,108 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 07:56:06,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:06,114 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 43 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:06,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 96 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:06,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 07:56:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2023-11-19 07:56:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-19 07:56:06,141 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 33 [2023-11-19 07:56:06,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:06,148 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-19 07:56:06,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,149 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-19 07:56:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:56:06,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:06,152 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:06,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:06,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:06,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:06,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1284207405, now seen corresponding path program 1 times [2023-11-19 07:56:06,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:06,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472356026] [2023-11-19 07:56:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:06,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:07,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:07,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472356026] [2023-11-19 07:56:07,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472356026] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921653886] [2023-11-19 07:56:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:07,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:07,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:07,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:07,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:56:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:08,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 81 conjunts are in the unsatisfiable core [2023-11-19 07:56:08,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:08,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:56:08,286 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 07:56:08,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-19 07:56:08,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:56:08,670 INFO L378 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 26 treesize of output 14 [2023-11-19 07:56:08,679 INFO L378 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 11 treesize of output 7 [2023-11-19 07:56:08,843 INFO L378 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 20 treesize of output 8 [2023-11-19 07:56:08,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:56:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:09,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:09,412 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_354 (Array Int Int))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_354) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2023-11-19 07:56:09,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:56:09,444 INFO L378 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-11-19 07:56:09,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:56:09,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 51 [2023-11-19 07:56:09,470 INFO L378 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 18 treesize of output 16 [2023-11-19 07:56:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2023-11-19 07:56:10,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921653886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:10,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:10,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 19] total 51 [2023-11-19 07:56:10,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705716226] [2023-11-19 07:56:10,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:10,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-11-19 07:56:10,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:10,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-11-19 07:56:10,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2264, Unknown=23, NotChecked=96, Total=2550 [2023-11-19 07:56:10,015 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 51 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:12,005 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2023-11-19 07:56:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 07:56:12,006 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-19 07:56:12,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:12,007 INFO L225 Difference]: With dead ends: 82 [2023-11-19 07:56:12,007 INFO L226 Difference]: Without dead ends: 80 [2023-11-19 07:56:12,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1073 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=603, Invalid=4928, Unknown=23, NotChecked=146, Total=5700 [2023-11-19 07:56:12,011 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 455 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:12,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 332 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 705 Invalid, 0 Unknown, 87 Unchecked, 0.6s Time] [2023-11-19 07:56:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-19 07:56:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 53. [2023-11-19 07:56:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 52 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2023-11-19 07:56:12,023 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 34 [2023-11-19 07:56:12,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:12,023 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2023-11-19 07:56:12,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 51 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2023-11-19 07:56:12,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:56:12,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:12,025 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:12,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:12,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:12,242 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:12,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1207377995, now seen corresponding path program 1 times [2023-11-19 07:56:12,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:12,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920541738] [2023-11-19 07:56:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:12,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:12,340 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:56:12,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:12,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920541738] [2023-11-19 07:56:12,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920541738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:12,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:12,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:12,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509958212] [2023-11-19 07:56:12,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:12,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:12,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:12,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:12,343 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:12,379 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2023-11-19 07:56:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-19 07:56:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:12,381 INFO L225 Difference]: With dead ends: 69 [2023-11-19 07:56:12,381 INFO L226 Difference]: Without dead ends: 61 [2023-11-19 07:56:12,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:12,382 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:12,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 61 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-19 07:56:12,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2023-11-19 07:56:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2023-11-19 07:56:12,394 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 35 [2023-11-19 07:56:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:12,394 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2023-11-19 07:56:12,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-19 07:56:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:56:12,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:12,396 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:12,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:56:12,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:12,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash -641547586, now seen corresponding path program 2 times [2023-11-19 07:56:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:12,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963435665] [2023-11-19 07:56:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:12,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:12,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:12,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963435665] [2023-11-19 07:56:12,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963435665] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:12,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346899718] [2023-11-19 07:56:12,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:12,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:12,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:12,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:12,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:56:12,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:56:12,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:12,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:56:12,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:12,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:56:12,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346899718] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:12,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:12,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2023-11-19 07:56:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765155705] [2023-11-19 07:56:12,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:12,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:56:12,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:56:12,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:56:12,749 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:12,838 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2023-11-19 07:56:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:56:12,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-19 07:56:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:12,839 INFO L225 Difference]: With dead ends: 91 [2023-11-19 07:56:12,840 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 07:56:12,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:56:12,841 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 26 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:12,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 128 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 07:56:12,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2023-11-19 07:56:12,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 51 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2023-11-19 07:56:12,853 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 35 [2023-11-19 07:56:12,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:12,853 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2023-11-19 07:56:12,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2023-11-19 07:56:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 07:56:12,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:12,855 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:12,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:13,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:13,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:13,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:13,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2028742216, now seen corresponding path program 1 times [2023-11-19 07:56:13,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:13,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997529602] [2023-11-19 07:56:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:13,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:56:13,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:13,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997529602] [2023-11-19 07:56:13,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997529602] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:13,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974271340] [2023-11-19 07:56:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:13,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:13,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:13,212 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:13,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:56:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:13,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:13,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:56:13,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:56:13,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974271340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:13,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:13,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-11-19 07:56:13,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278318016] [2023-11-19 07:56:13,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:13,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:13,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:13,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:13,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:13,432 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:13,477 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2023-11-19 07:56:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-11-19 07:56:13,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:13,478 INFO L225 Difference]: With dead ends: 67 [2023-11-19 07:56:13,478 INFO L226 Difference]: Without dead ends: 59 [2023-11-19 07:56:13,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:13,481 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 21 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:13,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 99 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:13,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-19 07:56:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2023-11-19 07:56:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2023-11-19 07:56:13,502 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 40 [2023-11-19 07:56:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:13,504 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2023-11-19 07:56:13,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2023-11-19 07:56:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:56:13,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:13,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:13,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:13,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:13,731 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:13,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:13,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1585154848, now seen corresponding path program 1 times [2023-11-19 07:56:13,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:13,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676993812] [2023-11-19 07:56:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:13,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:15,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676993812] [2023-11-19 07:56:15,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676993812] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420515286] [2023-11-19 07:56:15,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:15,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:15,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:15,377 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:15,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:56:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:15,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 90 conjunts are in the unsatisfiable core [2023-11-19 07:56:15,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:15,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:56:15,753 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 07:56:15,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-19 07:56:15,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:56:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:56:16,071 INFO L378 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 26 treesize of output 14 [2023-11-19 07:56:16,326 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-19 07:56:16,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 73 [2023-11-19 07:56:16,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2023-11-19 07:56:16,338 INFO L378 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 40 treesize of output 23 [2023-11-19 07:56:16,718 INFO L378 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 39 treesize of output 21 [2023-11-19 07:56:16,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 [2023-11-19 07:56:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:16,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:17,100 INFO L378 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 86 treesize of output 64 [2023-11-19 07:56:17,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:56:17,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 43 [2023-11-19 07:56:17,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-19 07:56:17,520 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_693 (Array Int Int))) (or (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base| v_ArrVal_693) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (not (= (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_update_at_~head#1.base|) |c_ULTIMATE.start_sll_update_at_~head#1.offset| (select v_ArrVal_693 |c_ULTIMATE.start_sll_update_at_~head#1.offset|)) v_ArrVal_693)))) (= |c_ULTIMATE.start_main_~i~0#1| 0)) is different from false [2023-11-19 07:56:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-11-19 07:56:17,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420515286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:17,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:17,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 21] total 57 [2023-11-19 07:56:17,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468311936] [2023-11-19 07:56:17,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:17,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-11-19 07:56:17,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-11-19 07:56:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=2883, Unknown=20, NotChecked=108, Total=3192 [2023-11-19 07:56:17,943 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 57 states, 57 states have (on average 1.9824561403508771) internal successors, (113), 57 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:20,022 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2023-11-19 07:56:20,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-19 07:56:20,023 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.9824561403508771) internal successors, (113), 57 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-11-19 07:56:20,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:20,024 INFO L225 Difference]: With dead ends: 98 [2023-11-19 07:56:20,024 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:56:20,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=572, Invalid=5732, Unknown=20, NotChecked=156, Total=6480 [2023-11-19 07:56:20,029 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 284 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:20,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 430 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 916 Invalid, 0 Unknown, 82 Unchecked, 0.7s Time] [2023-11-19 07:56:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:56:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 67. [2023-11-19 07:56:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 66 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2023-11-19 07:56:20,045 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 41 [2023-11-19 07:56:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:20,045 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2023-11-19 07:56:20,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.9824561403508771) internal successors, (113), 57 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2023-11-19 07:56:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:56:20,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:20,047 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:20,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:20,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:20,261 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:20,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1350763507, now seen corresponding path program 3 times [2023-11-19 07:56:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140300421] [2023-11-19 07:56:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:20,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:56:20,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:20,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140300421] [2023-11-19 07:56:20,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140300421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:20,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608422891] [2023-11-19 07:56:20,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:56:20,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:20,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:20,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:20,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:56:20,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:56:20,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:20,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:20,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:56:20,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:20,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608422891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:20,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:56:20,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-11-19 07:56:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991863009] [2023-11-19 07:56:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:20,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:56:20,910 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:20,945 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2023-11-19 07:56:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:20,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-11-19 07:56:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:20,947 INFO L225 Difference]: With dead ends: 78 [2023-11-19 07:56:20,948 INFO L226 Difference]: Without dead ends: 43 [2023-11-19 07:56:20,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:56:20,950 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:20,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 71 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:20,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-19 07:56:20,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-19 07:56:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 42 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2023-11-19 07:56:20,967 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 41 [2023-11-19 07:56:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:20,967 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2023-11-19 07:56:20,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2023-11-19 07:56:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:56:20,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:20,968 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:20,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:21,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:56:21,169 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:21,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1946814136, now seen corresponding path program 2 times [2023-11-19 07:56:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:21,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885182699] [2023-11-19 07:56:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:21,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:56:21,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885182699] [2023-11-19 07:56:21,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885182699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527157135] [2023-11-19 07:56:21,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:21,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:21,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:21,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:21,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:56:21,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:56:21,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:21,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:56:21,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 07:56:21,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 07:56:21,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527157135] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:21,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2023-11-19 07:56:21,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943987140] [2023-11-19 07:56:21,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:56:21,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:56:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:21,643 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:21,716 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2023-11-19 07:56:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:56:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-19 07:56:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:21,717 INFO L225 Difference]: With dead ends: 43 [2023-11-19 07:56:21,717 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:56:21,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:56:21,719 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:21,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 63 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:21,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:56:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:56:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:56:21,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2023-11-19 07:56:21,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:21,721 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:56:21,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:56:21,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:56:21,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:56:21,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:21,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:56:21,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:56:22,435 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2023-11-19 07:56:22,435 INFO L899 garLoopResultBuilder]: For program point sll_get_data_at_returnLabel#1(lines 599 605) no Hoare annotation was computed. [2023-11-19 07:56:22,435 INFO L899 garLoopResultBuilder]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2023-11-19 07:56:22,435 INFO L895 garLoopResultBuilder]: At program point L622-3(lines 622 627) the Hoare annotation is: (let ((.cse5 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) 4))) (let ((.cse2 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse5))) (.cse3 (= (select (select |#memory_int| .cse5) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) 4)) 3)) (.cse0 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse1 (= (select |#valid| |ULTIMATE.start_node_create_#res#1.base|) 1)) (.cse4 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) 0) 2) .cse3 .cse0 .cse1 .cse4) (and .cse2 (= |ULTIMATE.start_main_~i~0#1| 1) .cse3 .cse0 .cse1 .cse4)))) [2023-11-19 07:56:22,436 INFO L899 garLoopResultBuilder]: For program point L622-4(lines 622 627) no Hoare annotation was computed. [2023-11-19 07:56:22,436 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 613 632) no Hoare annotation was computed. [2023-11-19 07:56:22,436 INFO L899 garLoopResultBuilder]: For program point L606(lines 606 612) no Hoare annotation was computed. [2023-11-19 07:56:22,436 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:56:22,436 INFO L895 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: (let ((.cse1 (= 3 |ULTIMATE.start_sll_update_at_~data#1|)) (.cse2 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse10 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_update_at_~head#1.base|) 4)) (.cse3 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) 0) 2)) (.cse4 (= |ULTIMATE.start_sll_create_#res#1.offset| 0)) (.cse5 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res#1.base|) 4) |ULTIMATE.start_sll_create_#res#1.base|))) (.cse9 (= |ULTIMATE.start_sll_update_at_~head#1.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse0 (= |ULTIMATE.start_sll_update_at_~head#1.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse7 (= (select |#valid| |ULTIMATE.start_node_create_#res#1.base|) 1)) (.cse8 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (= |ULTIMATE.start_sll_update_at_~head#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) 4)) (not .cse0) .cse1 .cse2 (<= |ULTIMATE.start_sll_update_at_~index#1| 0) .cse3 .cse4 (= |ULTIMATE.start_sll_update_at_~head#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) 4)) .cse5 .cse6 .cse7 .cse8) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse4 .cse5 (= 2 |ULTIMATE.start_sll_update_at_~data#1|) .cse9 .cse6 (= |ULTIMATE.start_sll_update_at_~index#1| 0) .cse0 (not (= |ULTIMATE.start_sll_update_at_~head#1.base| .cse10)) .cse7 .cse8) (and (= |ULTIMATE.start_sll_update_at_~index#1| 1) .cse1 .cse2 (not (= .cse10 |ULTIMATE.start_main_~s~0#1.base|)) .cse3 .cse4 .cse5 .cse9 .cse6 .cse0 .cse7 .cse8))) [2023-11-19 07:56:22,436 INFO L899 garLoopResultBuilder]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2023-11-19 07:56:22,436 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 626) no Hoare annotation was computed. [2023-11-19 07:56:22,437 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:56:22,437 INFO L895 garLoopResultBuilder]: At program point L600-2(lines 600 603) the Hoare annotation is: (let ((.cse10 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) 4))) (let ((.cse2 (select (select |#memory_int| |ULTIMATE.start_sll_get_data_at_~head#1.base|) |ULTIMATE.start_sll_get_data_at_~head#1.offset|)) (.cse0 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse10))) (.cse6 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse7 (= 3 |ULTIMATE.start_main_~expected~0#1|)) (.cse1 (= (select (select |#memory_int| .cse10) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) 4)) 3)) (.cse3 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse4 (= (select |#valid| |ULTIMATE.start_node_create_#res#1.base|) 1)) (.cse5 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (= 2 |ULTIMATE.start_main_~expected~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) 0) 2) .cse1 (= .cse2 2) .cse3 .cse4 .cse5 (= |ULTIMATE.start_sll_get_data_at_~index#1| 0)) (and (<= |ULTIMATE.start_sll_get_data_at_~index#1| 0) .cse0 .cse6 .cse7 .cse1 (= .cse2 3) .cse3 .cse4 .cse5) (let ((.cse9 (+ |ULTIMATE.start_sll_get_data_at_~head#1.offset| 4))) (let ((.cse8 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse9))) (and (= (select (select |#memory_int| .cse8) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse9)) 3) .cse0 .cse6 .cse7 .cse1 (not (= |ULTIMATE.start_sll_get_data_at_~head#1.base| .cse8)) .cse3 (= |ULTIMATE.start_sll_get_data_at_~index#1| 1) .cse4 .cse5)))))) [2023-11-19 07:56:22,437 INFO L899 garLoopResultBuilder]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2023-11-19 07:56:22,437 INFO L899 garLoopResultBuilder]: For program point L592(lines 592 598) no Hoare annotation was computed. [2023-11-19 07:56:22,437 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 578) no Hoare annotation was computed. [2023-11-19 07:56:22,437 INFO L899 garLoopResultBuilder]: For program point L576-1(lines 576 578) no Hoare annotation was computed. [2023-11-19 07:56:22,437 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2023-11-19 07:56:22,438 INFO L899 garLoopResultBuilder]: For program point L618-2(lines 618 621) no Hoare annotation was computed. [2023-11-19 07:56:22,438 INFO L899 garLoopResultBuilder]: For program point L585-2(lines 585 589) no Hoare annotation was computed. [2023-11-19 07:56:22,438 INFO L895 garLoopResultBuilder]: At program point L618-3(lines 618 621) the Hoare annotation is: (let ((.cse7 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|) 4))) (let ((.cse1 (= |ULTIMATE.start_sll_create_#res#1.offset| 0)) (.cse2 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res#1.base|) 4) |ULTIMATE.start_sll_create_#res#1.base|))) (.cse0 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse7))) (.cse6 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) 0) 2)) (.cse3 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse4 (= (select |#valid| |ULTIMATE.start_node_create_#res#1.base|) 1)) (.cse5 (= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 (= (select (select |#memory_int| .cse7) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) 4)) 3) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse3 .cse4 .cse5)))) [2023-11-19 07:56:22,438 INFO L895 garLoopResultBuilder]: At program point L585-3(lines 585 589) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1)) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (= (select |#valid| |ULTIMATE.start_node_create_#res#1.base|) 1))) (or (and .cse0 (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) .cse1 .cse2 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) |ULTIMATE.start_sll_create_~head~0#1.base|))) (and (= 2 |ULTIMATE.start_sll_create_~len#1|) .cse1) (and .cse0 (<= 1 |ULTIMATE.start_sll_create_~len#1|) .cse1 .cse2))) [2023-11-19 07:56:22,438 INFO L899 garLoopResultBuilder]: For program point L618-4(lines 618 621) no Hoare annotation was computed. [2023-11-19 07:56:22,438 INFO L899 garLoopResultBuilder]: For program point L585-4(lines 585 589) no Hoare annotation was computed. [2023-11-19 07:56:22,438 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:56:22,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2023-11-19 07:56:22,439 INFO L899 garLoopResultBuilder]: For program point node_create_returnLabel#1(lines 574 582) no Hoare annotation was computed. [2023-11-19 07:56:22,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:56:22,439 INFO L899 garLoopResultBuilder]: For program point sll_create_returnLabel#1(lines 583 591) no Hoare annotation was computed. [2023-11-19 07:56:22,439 INFO L899 garLoopResultBuilder]: For program point main_ERROR#1(lines 613 632) no Hoare annotation was computed. [2023-11-19 07:56:22,442 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1] [2023-11-19 07:56:22,445 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:56:22,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated [2023-11-19 07:56:22,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated [2023-11-19 07:56:22,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated [2023-11-19 07:56:22,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated [2023-11-19 07:56:22,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head~0!base][4] could not be translated [2023-11-19 07:56:22,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated [2023-11-19 07:56:22,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated [2023-11-19 07:56:22,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,468 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated [2023-11-19 07:56:22,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated [2023-11-19 07:56:22,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,469 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated [2023-11-19 07:56:22,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated [2023-11-19 07:56:22,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,472 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 07:56:22,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,473 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~expected~0 [2023-11-19 07:56:22,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated [2023-11-19 07:56:22,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated [2023-11-19 07:56:22,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~head!base][~head!offset] could not be translated [2023-11-19 07:56:22,474 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-19 07:56:22,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,475 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 07:56:22,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~expected~0 [2023-11-19 07:56:22,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated [2023-11-19 07:56:22,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~head!base][~head!offset] could not be translated [2023-11-19 07:56:22,476 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-19 07:56:22,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~head!base][~head!offset + 4]][#memory_$Pointer$.offset[~head!base][~head!offset + 4]] could not be translated [2023-11-19 07:56:22,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,477 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 07:56:22,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~expected~0 [2023-11-19 07:56:22,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated [2023-11-19 07:56:22,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head!base][~head!offset + 4] could not be translated [2023-11-19 07:56:22,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-19 07:56:22,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~s~0!base][4] could not be translated [2023-11-19 07:56:22,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 07:56:22,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated [2023-11-19 07:56:22,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated [2023-11-19 07:56:22,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated [2023-11-19 07:56:22,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-19 07:56:22,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 07:56:22,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated [2023-11-19 07:56:22,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-19 07:56:22,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head!base][4] could not be translated [2023-11-19 07:56:22,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 07:56:22,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head!base][4] could not be translated [2023-11-19 07:56:22,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated [2023-11-19 07:56:22,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated [2023-11-19 07:56:22,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-11-19 07:56:22,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-19 07:56:22,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s~0 [2023-11-19 07:56:22,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated [2023-11-19 07:56:22,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:56:22 BoogieIcfgContainer [2023-11-19 07:56:22,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:56:22,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:56:22,491 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:56:22,491 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:56:22,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:02" (3/4) ... [2023-11-19 07:56:22,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:56:22,504 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 07:56:22,504 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 07:56:22,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:56:22,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:56:22,609 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:56:22,610 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:56:22,610 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:56:22,611 INFO L158 Benchmark]: Toolchain (without parser) took 21489.29ms. Allocated memory was 153.1MB in the beginning and 283.1MB in the end (delta: 130.0MB). Free memory was 109.3MB in the beginning and 93.1MB in the end (delta: 16.2MB). Peak memory consumption was 148.9MB. Max. memory is 16.1GB. [2023-11-19 07:56:22,611 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:22,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.86ms. Allocated memory is still 153.1MB. Free memory was 109.3MB in the beginning and 91.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:56:22,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.93ms. Allocated memory is still 153.1MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:22,612 INFO L158 Benchmark]: Boogie Preprocessor took 59.24ms. Allocated memory is still 153.1MB. Free memory was 89.6MB in the beginning and 87.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:22,613 INFO L158 Benchmark]: RCFGBuilder took 668.02ms. Allocated memory is still 153.1MB. Free memory was 87.9MB in the beginning and 115.1MB in the end (delta: -27.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-11-19 07:56:22,613 INFO L158 Benchmark]: TraceAbstraction took 19997.53ms. Allocated memory was 153.1MB in the beginning and 283.1MB in the end (delta: 130.0MB). Free memory was 114.2MB in the beginning and 98.4MB in the end (delta: 15.9MB). Peak memory consumption was 147.6MB. Max. memory is 16.1GB. [2023-11-19 07:56:22,614 INFO L158 Benchmark]: Witness Printer took 119.56ms. Allocated memory is still 283.1MB. Free memory was 98.4MB in the beginning and 93.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:56:22,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.86ms. Allocated memory is still 153.1MB. Free memory was 109.3MB in the beginning and 91.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.93ms. Allocated memory is still 153.1MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.24ms. Allocated memory is still 153.1MB. Free memory was 89.6MB in the beginning and 87.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 668.02ms. Allocated memory is still 153.1MB. Free memory was 87.9MB in the beginning and 115.1MB in the end (delta: -27.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19997.53ms. Allocated memory was 153.1MB in the beginning and 283.1MB in the end (delta: 130.0MB). Free memory was 114.2MB in the beginning and 98.4MB in the end (delta: 15.9MB). Peak memory consumption was 147.6MB. Max. memory is 16.1GB. * Witness Printer took 119.56ms. Allocated memory is still 283.1MB. Free memory was 98.4MB in the beginning and 93.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~head!base][~head!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~head!base][~head!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~head!base][~head!offset + 4]][#memory_$Pointer$.offset[~head!base][~head!offset + 4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[#memory_$Pointer$.base[~s~0!base][4]][#memory_$Pointer$.offset[~s~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head!base][~head!offset + 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~s~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~head!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[#res!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#res!base] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 630]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 996 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 996 mSDsluCounter, 1516 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 169 IncrementalHoareTripleChecker+Unchecked, 1225 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1870 IncrementalHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 291 mSDtfsCounter, 1870 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 722 GetRequests, 499 SyntacticMatches, 17 SemanticMatches, 206 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2393 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=10, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 118 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 21 NumberOfFragments, 608 HoareAnnotationTreeSize, 6 FomulaSimplifications, 5074 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 105 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 695 NumberOfCodeBlocks, 694 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 937 ConstructedInterpolants, 12 QuantifiedInterpolants, 4480 SizeOfPredicates, 87 NumberOfNonLiveVariables, 2442 ConjunctsInSsa, 207 ConjunctsInUnsatCore, 29 InterpolantComputations, 4 PerfectInterpolantSequences, 339/482 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: ((((2 <= i) && (len == 2)) || ((i == 0) && (len == 2))) || ((i == 1) && (len == 2))) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((len == 2) || ((2 == len) && (len == 2))) || ((1 <= len) && (len == 2))) - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: ((((i == 0) && (len == 2)) || ((i == 1) && (len == 2))) || ((2 <= i) && (len == 2))) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: (((index == 0) || (index <= 0)) || (index == 1)) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: ((((3 == data) && (index <= 0)) || ((2 == data) && (index == 0))) || ((index == 1) && (3 == data))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:56:22,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ed6b9a-9fd8-44cc-9edc-3dffd2d119cc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE