./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53cf1c89f0977ad1ca8f0cd80861a2586d1d5ed487af656b04baa58a1567d392 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:34,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:34,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:19:34,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:34,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:34,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:34,708 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:34,709 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:34,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:34,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:34,711 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:34,711 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:34,712 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:34,713 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:19:34,713 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:34,714 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:34,714 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:19:34,715 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:19:34,716 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:34,716 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:19:34,717 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:19:34,718 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:19:34,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:34,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:34,720 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:34,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:19:34,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:34,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:34,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:34,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:34,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:34,724 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:34,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:34,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:34,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:34,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:34,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:34,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:34,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:34,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:34,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:34,728 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:19:34,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:19:34,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:34,729 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:34,729 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:34,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:34,729 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53cf1c89f0977ad1ca8f0cd80861a2586d1d5ed487af656b04baa58a1567d392 [2023-11-24 23:19:35,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:35,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:35,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:35,061 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:35,062 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:35,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i [2023-11-24 23:19:38,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:38,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:38,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i [2023-11-24 23:19:38,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data/3836ed8f8/7c63c6b673e846feb6d105dcf8e45a9e/FLAG06785ec03 [2023-11-24 23:19:38,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data/3836ed8f8/7c63c6b673e846feb6d105dcf8e45a9e [2023-11-24 23:19:38,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:38,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:38,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:38,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:38,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:38,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:38,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b5210b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38, skipping insertion in model container [2023-11-24 23:19:38,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:38,627 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:38,777 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_0f0f4123-9458-4143-9459-2de25ecc4d90/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i[916,929] [2023-11-24 23:19:38,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:38,871 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:38,883 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_0f0f4123-9458-4143-9459-2de25ecc4d90/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i[916,929] [2023-11-24 23:19:38,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:38,941 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:38,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38 WrapperNode [2023-11-24 23:19:38,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:38,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:38,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:38,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:38,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:38,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,016 INFO L138 Inliner]: procedures = 29, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 355 [2023-11-24 23:19:39,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:39,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:39,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:39,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:39,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:39,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:39,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:39,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:39,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (1/1) ... [2023-11-24 23:19:39,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:39,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:39,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:39,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:19:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:19:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:19:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:19:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:19:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:19:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:19:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:19:39,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:39,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:39,358 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:39,362 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:39,936 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:40,458 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:40,459 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:19:40,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:40 BoogieIcfgContainer [2023-11-24 23:19:40,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:40,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:40,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:40,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:40,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:38" (1/3) ... [2023-11-24 23:19:40,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8edd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:40, skipping insertion in model container [2023-11-24 23:19:40,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:38" (2/3) ... [2023-11-24 23:19:40,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8edd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:40, skipping insertion in model container [2023-11-24 23:19:40,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:40" (3/3) ... [2023-11-24 23:19:40,495 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-46.i [2023-11-24 23:19:40,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:40,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:40,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:40,584 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=FINITE_AUTOMATA, 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;@7151cf4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:40,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:40,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 23:19:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 23:19:40,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:40,600 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:40,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:40,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1653591186, now seen corresponding path program 1 times [2023-11-24 23:19:40,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:40,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180389893] [2023-11-24 23:19:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:40,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:19:40,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771495222] [2023-11-24 23:19:40,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:40,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:19:40,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:40,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:19:40,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:19:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-24 23:19:41,756 WARN L124 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2023-11-24 23:19:41,759 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-11-24 23:19:41,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:19:41,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:19:41,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:19:41,974 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:19:41,977 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:19:42,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:19:42 BoogieIcfgContainer [2023-11-24 23:19:42,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:19:42,017 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:19:42,017 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:19:42,017 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:19:42,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:40" (3/4) ... [2023-11-24 23:19:42,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:19:42,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:19:42,023 INFO L158 Benchmark]: Toolchain (without parser) took 3451.19ms. Allocated memory was 121.6MB in the beginning and 174.1MB in the end (delta: 52.4MB). Free memory was 75.6MB in the beginning and 86.7MB in the end (delta: -11.1MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2023-11-24 23:19:42,023 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:42,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.57ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 60.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:19:42,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.22ms. Allocated memory is still 121.6MB. Free memory was 60.3MB in the beginning and 57.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:19:42,025 INFO L158 Benchmark]: Boogie Preprocessor took 80.88ms. Allocated memory is still 121.6MB. Free memory was 57.0MB in the beginning and 54.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:19:42,026 INFO L158 Benchmark]: RCFGBuilder took 1381.13ms. Allocated memory was 121.6MB in the beginning and 174.1MB in the end (delta: 52.4MB). Free memory was 54.2MB in the beginning and 137.0MB in the end (delta: -82.8MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2023-11-24 23:19:42,026 INFO L158 Benchmark]: TraceAbstraction took 1532.89ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 86.7MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-24 23:19:42,027 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 174.1MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:42,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.57ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 60.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.22ms. Allocated memory is still 121.6MB. Free memory was 60.3MB in the beginning and 57.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.88ms. Allocated memory is still 121.6MB. Free memory was 57.0MB in the beginning and 54.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1381.13ms. Allocated memory was 121.6MB in the beginning and 174.1MB in the end (delta: 52.4MB). Free memory was 54.2MB in the beginning and 137.0MB in the end (delta: -82.8MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1532.89ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 86.7MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 174.1MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of someBinaryDOUBLEComparisonOperation at line 61, overapproximation of bitwiseOr at line 79. Possible FailurePath: [L35] unsigned char isInitial = 0; [L36-L48] struct WrapperStruct00 WrapperStruct00 = { 1, 31.75, -8, 0, 0, 1, 1, -4, 32, -25, 4 }; [L49] unsigned char last_1_WrapperStruct00_var_1_1 = 1; [L50] signed short int last_1_WrapperStruct00_var_1_10 = -4; [L120] isInitial = 1 [L121] FCALL initially() [L122] COND TRUE 1 [L123] CALL updateLastVariables() [L112] EXPR WrapperStruct00.var_1_1 [L112] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L113] EXPR WrapperStruct00.var_1_10 [L113] last_1_WrapperStruct00_var_1_10 = WrapperStruct00.var_1_10 [L123] RET updateLastVariables() [L124] CALL updateVariables() [L89] WrapperStruct00.var_1_2 = __VERIFIER_nondet_double() [L90] EXPR WrapperStruct00.var_1_2 [L90] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L90] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) [L90] EXPR WrapperStruct00.var_1_2 [L90] EXPR WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F [L90] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) [L90] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) [L20] COND TRUE !cond [L90] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) [L91] WrapperStruct00.var_1_4 = __VERIFIER_nondet_char() [L92] EXPR WrapperStruct00.var_1_4 [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= -128) [L20] COND TRUE !cond [L92] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= -128) [L93] EXPR WrapperStruct00.var_1_4 [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) [L20] COND TRUE !cond [L93] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) [L94] EXPR WrapperStruct00.var_1_4 [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_4 != 0) [L20] COND TRUE !cond [L94] RET assume_abort_if_not(WrapperStruct00.var_1_4 != 0) [L95] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L96] EXPR WrapperStruct00.var_1_6 [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) [L20] COND TRUE !cond [L96] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) [L97] EXPR WrapperStruct00.var_1_6 [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 0) [L20] COND TRUE !cond [L97] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 0) [L98] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L99] EXPR WrapperStruct00.var_1_7 [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) [L20] COND TRUE !cond [L99] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) [L100] EXPR WrapperStruct00.var_1_7 [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 0) [L20] COND TRUE !cond [L100] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 0) [L101] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L102] EXPR WrapperStruct00.var_1_9 [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 1) [L20] COND TRUE !cond [L102] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 1) [L103] EXPR WrapperStruct00.var_1_9 [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) [L20] COND TRUE !cond [L103] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) [L104] WrapperStruct00.var_1_12 = __VERIFIER_nondet_short() [L105] EXPR WrapperStruct00.var_1_12 [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) [L20] COND TRUE !cond [L105] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) [L106] EXPR WrapperStruct00.var_1_12 [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32766) [L20] COND TRUE !cond [L106] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32766) [L107] WrapperStruct00.var_1_16 = __VERIFIER_nondet_char() [L108] EXPR WrapperStruct00.var_1_16 [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) [L20] COND TRUE !cond [L108] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) [L109] EXPR WrapperStruct00.var_1_16 [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) [L20] COND TRUE !cond [L109] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) [L124] RET updateVariables() [L125] CALL step() [L54] EXPR WrapperStruct00.var_1_12 [L54] EXPR WrapperStruct00.var_1_4 [L54] COND FALSE !(last_1_WrapperStruct00_var_1_10 <= (WrapperStruct00.var_1_12 / WrapperStruct00.var_1_4)) [L59] EXPR WrapperStruct00.var_1_4 [L59] EXPR WrapperStruct00.var_1_13 [L59] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13) [L59] EXPR WrapperStruct00.var_1_13 [L59] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13) [L59] signed long int stepLocal_1 = (((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13)); [L60] EXPR WrapperStruct00.var_1_13 [L60] EXPR WrapperStruct00.var_1_4 [L60] signed long int stepLocal_0 = WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4; [L61] EXPR WrapperStruct00.var_1_2 [L61] COND FALSE !((- WrapperStruct00.var_1_2) >= 16.75) [L76] WrapperStruct00.var_1_1 = 1 [L78] EXPR WrapperStruct00.var_1_13 [L78] signed char stepLocal_2 = WrapperStruct00.var_1_13; [L79] EXPR WrapperStruct00.var_1_13 [L79] EXPR WrapperStruct00.var_1_13 [L79] EXPR WrapperStruct00.var_1_13 | WrapperStruct00.var_1_13 [L79] EXPR WrapperStruct00.var_1_4 [L79] COND FALSE !(((WrapperStruct00.var_1_13 | WrapperStruct00.var_1_13) + WrapperStruct00.var_1_4) < stepLocal_2) [L82] WrapperStruct00.var_1_10 = 128 [L84] EXPR WrapperStruct00.var_1_4 [L84] COND TRUE 1 == WrapperStruct00.var_1_4 [L85] EXPR WrapperStruct00.var_1_9 [L85] WrapperStruct00.var_1_8 = WrapperStruct00.var_1_9 [L125] RET step() [L126] CALL, EXPR property() [L116] EXPR WrapperStruct00.var_1_2 [L116] EXPR ((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1)) [L116] EXPR WrapperStruct00.var_1_13 [L116] EXPR WrapperStruct00.var_1_4 [L116] EXPR WrapperStruct00.var_1_13 [L116] EXPR ((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7))) [L116] EXPR WrapperStruct00.var_1_4 [L116] EXPR WrapperStruct00.var_1_13 [L116] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13) [L116] EXPR WrapperStruct00.var_1_13 [L116] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13) [L116] EXPR (((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7))) [L116] EXPR WrapperStruct00.var_1_1 [L116] EXPR (((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7))) [L116] EXPR ((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7))) [L116] EXPR ((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1)) [L116] EXPR (((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1))) && ((1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1) [L116] EXPR WrapperStruct00.var_1_4 [L116] EXPR (1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1 [L116] EXPR WrapperStruct00.var_1_8 [L116] EXPR WrapperStruct00.var_1_9 [L116] EXPR (1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1 [L116] EXPR (((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1))) && ((1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1) [L116] EXPR ((((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1))) && ((1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1)) && ((((WrapperStruct00.var_1_13 | WrapperStruct00.var_1_13) + WrapperStruct00.var_1_4) < WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_10 == ((signed short int) (WrapperStruct00.var_1_12 - 256))) : (WrapperStruct00.var_1_10 == ((signed short int) 128))) [L116] EXPR (((((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1))) && ((1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1)) && ((((WrapperStruct00.var_1_13 | WrapperStruct00.var_1_13) + WrapperStruct00.var_1_4) < WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_10 == ((signed short int) (WrapperStruct00.var_1_12 - 256))) : (WrapperStruct00.var_1_10 == ((signed short int) 128)))) && ((last_1_WrapperStruct00_var_1_10 <= (WrapperStruct00.var_1_12 / WrapperStruct00.var_1_4)) ? (last_1_WrapperStruct00_var_1_1 ? (WrapperStruct00.var_1_13 == ((signed char) WrapperStruct00.var_1_16)) : 1) : 1) [L116-L117] return (((((- WrapperStruct00.var_1_2) >= 16.75) ? (((WrapperStruct00.var_1_13 / WrapperStruct00.var_1_4) >= WrapperStruct00.var_1_13) ? ((((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_13))) > -32) ? (WrapperStruct00.var_1_1 == ((unsigned char) 0)) : (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_6 || WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_1 == ((unsigned char) 1)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_7)))) : (WrapperStruct00.var_1_1 == ((unsigned char) 1))) && ((1 == WrapperStruct00.var_1_4) ? (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_9)) : 1)) && ((((WrapperStruct00.var_1_13 | WrapperStruct00.var_1_13) + WrapperStruct00.var_1_4) < WrapperStruct00.var_1_13) ? (WrapperStruct00.var_1_10 == ((signed short int) (WrapperStruct00.var_1_12 - 256))) : (WrapperStruct00.var_1_10 == ((signed short int) 128)))) && ((last_1_WrapperStruct00_var_1_10 <= (WrapperStruct00.var_1_12 / WrapperStruct00.var_1_4)) ? (last_1_WrapperStruct00_var_1_1 ? (WrapperStruct00.var_1_13 == ((signed char) WrapperStruct00.var_1_16)) : 1) : 1) ; [L126] RET, EXPR property() [L126] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:19:42,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53cf1c89f0977ad1ca8f0cd80861a2586d1d5ed487af656b04baa58a1567d392 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:44,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:44,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:19:44,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:44,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:44,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:44,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:44,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:44,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:44,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:44,951 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:44,951 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:44,952 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:44,953 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:44,954 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:44,954 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:44,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:44,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:44,956 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:44,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:44,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:44,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:44,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:44,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:44,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:19:44,960 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:19:44,960 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:19:44,960 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:44,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:44,961 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:44,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:44,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:19:44,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:44,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:44,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:44,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:44,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:44,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:44,965 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:19:44,966 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:19:44,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:44,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:44,966 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:44,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:44,967 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53cf1c89f0977ad1ca8f0cd80861a2586d1d5ed487af656b04baa58a1567d392 [2023-11-24 23:19:45,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:45,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:45,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:45,398 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:45,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:45,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i [2023-11-24 23:19:48,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:48,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:48,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i [2023-11-24 23:19:48,791 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data/89adb1baf/4648d0f964ba48178d36f5d371b130bd/FLAG973d36b6f [2023-11-24 23:19:48,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/data/89adb1baf/4648d0f964ba48178d36f5d371b130bd [2023-11-24 23:19:48,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:48,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:48,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:48,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:48,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:48,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:48" (1/1) ... [2023-11-24 23:19:48,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d7c4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:48, skipping insertion in model container [2023-11-24 23:19:48,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:48" (1/1) ... [2023-11-24 23:19:48,846 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:49,000 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_0f0f4123-9458-4143-9459-2de25ecc4d90/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i[916,929] [2023-11-24 23:19:49,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:49,085 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:49,098 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_0f0f4123-9458-4143-9459-2de25ecc4d90/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-46.i[916,929] [2023-11-24 23:19:49,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:49,165 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:49,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49 WrapperNode [2023-11-24 23:19:49,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:49,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:49,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:49,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:49,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,275 INFO L138 Inliner]: procedures = 33, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 331 [2023-11-24 23:19:49,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:49,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:49,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:49,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:49,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:49,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:49,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:49,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:49,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (1/1) ... [2023-11-24 23:19:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:49,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:49,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:49,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-24 23:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-24 23:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:19:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-24 23:19:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:19:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-24 23:19:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-24 23:19:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:19:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:19:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:19:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-24 23:19:49,671 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:49,674 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:50,433 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:50,484 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:50,484 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:19:50,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:50 BoogieIcfgContainer [2023-11-24 23:19:50,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:50,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:50,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:50,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:50,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:48" (1/3) ... [2023-11-24 23:19:50,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1832f409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:50, skipping insertion in model container [2023-11-24 23:19:50,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:49" (2/3) ... [2023-11-24 23:19:50,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1832f409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:50, skipping insertion in model container [2023-11-24 23:19:50,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:50" (3/3) ... [2023-11-24 23:19:50,521 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-46.i [2023-11-24 23:19:50,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:50,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:50,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:50,598 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=FINITE_AUTOMATA, 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;@4b8fda84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:50,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 70 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 23:19:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-24 23:19:50,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:50,618 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:50,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:50,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1795336234, now seen corresponding path program 1 times [2023-11-24 23:19:50,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:19:50,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040803471] [2023-11-24 23:19:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:50,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:19:50,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:19:50,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:19:50,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:19:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:50,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:19:50,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-24 23:19:51,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:19:51,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:19:51,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040803471] [2023-11-24 23:19:51,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040803471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:51,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:51,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:19:51,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515656969] [2023-11-24 23:19:51,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:51,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:19:51,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:19:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:19:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:19:51,060 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 70 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-24 23:19:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:51,113 INFO L93 Difference]: Finished difference Result 169 states and 268 transitions. [2023-11-24 23:19:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:19:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2023-11-24 23:19:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:51,125 INFO L225 Difference]: With dead ends: 169 [2023-11-24 23:19:51,125 INFO L226 Difference]: Without dead ends: 84 [2023-11-24 23:19:51,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:19:51,132 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:51,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:19:51,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-24 23:19:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-24 23:19:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 23:19:51,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2023-11-24 23:19:51,184 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 109 [2023-11-24 23:19:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:51,185 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2023-11-24 23:19:51,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-24 23:19:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2023-11-24 23:19:51,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-24 23:19:51,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:51,190 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:51,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:19:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:19:51,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:51,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:51,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1813199118, now seen corresponding path program 1 times [2023-11-24 23:19:51,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:19:51,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098237203] [2023-11-24 23:19:51,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:51,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:19:51,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:19:51,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:19:51,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:19:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:51,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:19:51,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:51,829 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 12 treesize of output 8 [2023-11-24 23:19:51,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:19:51,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2023-11-24 23:19:51,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:19:51,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 34 [2023-11-24 23:19:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-24 23:19:52,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:19:52,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:19:52,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098237203] [2023-11-24 23:19:52,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098237203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:52,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:52,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:19:52,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198932842] [2023-11-24 23:19:52,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:52,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:19:52,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:19:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:19:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:19:52,018 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:19:53,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:53,649 INFO L93 Difference]: Finished difference Result 342 states and 499 transitions. [2023-11-24 23:19:53,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 23:19:53,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2023-11-24 23:19:53,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:53,655 INFO L225 Difference]: With dead ends: 342 [2023-11-24 23:19:53,655 INFO L226 Difference]: Without dead ends: 259 [2023-11-24 23:19:53,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:19:53,661 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 273 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:53,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 394 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:19:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-24 23:19:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 153. [2023-11-24 23:19:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 126 states have (on average 1.380952380952381) internal successors, (174), 127 states have internal predecessors, (174), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-24 23:19:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 222 transitions. [2023-11-24 23:19:53,728 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 222 transitions. Word has length 109 [2023-11-24 23:19:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:53,732 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 222 transitions. [2023-11-24 23:19:53,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:19:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 222 transitions. [2023-11-24 23:19:53,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 23:19:53,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:53,744 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:53,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-24 23:19:53,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:19:53,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:53,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:53,954 INFO L85 PathProgramCache]: Analyzing trace with hash -258648301, now seen corresponding path program 1 times [2023-11-24 23:19:53,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:19:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530100714] [2023-11-24 23:19:53,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:53,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:19:53,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:19:53,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:19:54,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:19:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:54,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:19:54,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:54,373 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 23 treesize of output 11 [2023-11-24 23:19:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-24 23:19:54,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:19:54,728 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:19:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530100714] [2023-11-24 23:19:54,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530100714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:54,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:54,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:19:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004251002] [2023-11-24 23:19:54,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:54,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:19:54,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:19:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:19:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:19:54,731 INFO L87 Difference]: Start difference. First operand 153 states and 222 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:19:59,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:59,756 INFO L93 Difference]: Finished difference Result 439 states and 631 transitions. [2023-11-24 23:19:59,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:19:59,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-11-24 23:19:59,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:59,762 INFO L225 Difference]: With dead ends: 439 [2023-11-24 23:19:59,762 INFO L226 Difference]: Without dead ends: 287 [2023-11-24 23:19:59,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:19:59,765 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 101 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:59,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 338 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-24 23:19:59,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-24 23:19:59,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 237. [2023-11-24 23:19:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 206 states have (on average 1.3932038834951457) internal successors, (287), 209 states have internal predecessors, (287), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-24 23:19:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 339 transitions. [2023-11-24 23:19:59,797 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 339 transitions. Word has length 111 [2023-11-24 23:19:59,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:59,798 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 339 transitions. [2023-11-24 23:19:59,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:19:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 339 transitions. [2023-11-24 23:19:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 23:19:59,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:59,801 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:59,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:20:00,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:00,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:00,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:00,009 INFO L85 PathProgramCache]: Analyzing trace with hash 421410069, now seen corresponding path program 1 times [2023-11-24 23:20:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:00,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218570514] [2023-11-24 23:20:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:00,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:00,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:00,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:20:00,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 23:20:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:00,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:20:00,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-24 23:20:00,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:00,360 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218570514] [2023-11-24 23:20:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218570514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:00,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:00,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:20:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387440230] [2023-11-24 23:20:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:00,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:20:00,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:00,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:20:00,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:20:00,363 INFO L87 Difference]: Start difference. First operand 237 states and 339 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:20:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:00,478 INFO L93 Difference]: Finished difference Result 519 states and 743 transitions. [2023-11-24 23:20:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:20:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-11-24 23:20:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:00,483 INFO L225 Difference]: With dead ends: 519 [2023-11-24 23:20:00,483 INFO L226 Difference]: Without dead ends: 283 [2023-11-24 23:20:00,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:20:00,485 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 36 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:00,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 469 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:20:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-24 23:20:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 247. [2023-11-24 23:20:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 216 states have (on average 1.375) internal successors, (297), 219 states have internal predecessors, (297), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-24 23:20:00,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 349 transitions. [2023-11-24 23:20:00,530 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 349 transitions. Word has length 111 [2023-11-24 23:20:00,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:00,531 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 349 transitions. [2023-11-24 23:20:00,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:20:00,531 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 349 transitions. [2023-11-24 23:20:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 23:20:00,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:00,534 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:00,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:20:00,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:00,735 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:00,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 752468949, now seen corresponding path program 1 times [2023-11-24 23:20:00,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:00,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917619901] [2023-11-24 23:20:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:00,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:00,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:20:00,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:20:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:01,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 23:20:01,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:01,127 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 31 treesize of output 34 [2023-11-24 23:20:03,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:03,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2023-11-24 23:20:04,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:04,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2023-11-24 23:20:04,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:04,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2023-11-24 23:20:05,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:05,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2023-11-24 23:20:05,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:05,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2023-11-24 23:20:06,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:06,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2023-11-24 23:20:07,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:07,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 95 treesize of output 86 [2023-11-24 23:20:07,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:07,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 105 treesize of output 110 [2023-11-24 23:20:07,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:07,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 111 treesize of output 45 [2023-11-24 23:20:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-24 23:20:07,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:07,918 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:07,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917619901] [2023-11-24 23:20:07,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917619901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:07,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:07,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:20:07,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289273769] [2023-11-24 23:20:07,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:07,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:20:07,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:20:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=64, Unknown=1, NotChecked=0, Total=110 [2023-11-24 23:20:07,922 INFO L87 Difference]: Start difference. First operand 247 states and 349 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-24 23:20:11,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:11,939 INFO L93 Difference]: Finished difference Result 894 states and 1258 transitions. [2023-11-24 23:20:11,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 23:20:11,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 111 [2023-11-24 23:20:11,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:11,946 INFO L225 Difference]: With dead ends: 894 [2023-11-24 23:20:11,946 INFO L226 Difference]: Without dead ends: 648 [2023-11-24 23:20:11,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=74, Invalid=107, Unknown=1, NotChecked=0, Total=182 [2023-11-24 23:20:11,948 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 508 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:11,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 457 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-24 23:20:11,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-11-24 23:20:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 508. [2023-11-24 23:20:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 447 states have (on average 1.378076062639821) internal successors, (616), 453 states have internal predecessors, (616), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 46 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-24 23:20:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 720 transitions. [2023-11-24 23:20:12,024 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 720 transitions. Word has length 111 [2023-11-24 23:20:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 720 transitions. [2023-11-24 23:20:12,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-24 23:20:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 720 transitions. [2023-11-24 23:20:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 23:20:12,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:12,028 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:12,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:20:12,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:12,235 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:12,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1473644035, now seen corresponding path program 1 times [2023-11-24 23:20:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:12,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491100282] [2023-11-24 23:20:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:12,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:12,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:12,240 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:20:12,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 23:20:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:12,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-24 23:20:12,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:12,550 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 25 treesize of output 10 [2023-11-24 23:20:14,560 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_24| (_ BitVec 64))) (= (select (select |c_#memory_int| |c_~#WrapperStruct00~0.base|) (bvadd |c_~#WrapperStruct00~0.offset| (_ bv5 32))) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_24|))) is different from true [2023-11-24 23:20:14,608 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 25 treesize of output 24 [2023-11-24 23:20:14,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:14,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2023-11-24 23:20:14,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:14,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2023-11-24 23:20:15,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:15,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2023-11-24 23:20:15,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:15,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2023-11-24 23:20:15,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:15,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2023-11-24 23:20:16,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:16,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 80 [2023-11-24 23:20:16,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:16,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 120 treesize of output 104 [2023-11-24 23:20:16,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:16,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 167 treesize of output 59 [2023-11-24 23:20:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 52 not checked. [2023-11-24 23:20:16,748 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:20:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-24 23:20:19,133 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:19,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491100282] [2023-11-24 23:20:19,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491100282] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-24 23:20:19,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:20:19,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-11-24 23:20:19,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581181033] [2023-11-24 23:20:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:19,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:20:19,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:19,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:20:19,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=91, Unknown=2, NotChecked=20, Total=156 [2023-11-24 23:20:19,136 INFO L87 Difference]: Start difference. First operand 508 states and 720 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:20:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:22,219 INFO L93 Difference]: Finished difference Result 1403 states and 1981 transitions. [2023-11-24 23:20:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:20:22,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-11-24 23:20:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:22,227 INFO L225 Difference]: With dead ends: 1403 [2023-11-24 23:20:22,228 INFO L226 Difference]: Without dead ends: 896 [2023-11-24 23:20:22,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=48, Invalid=109, Unknown=3, NotChecked=22, Total=182 [2023-11-24 23:20:22,230 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 127 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:22,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 324 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 23:20:22,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-24 23:20:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 528. [2023-11-24 23:20:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 467 states have (on average 1.3640256959314776) internal successors, (637), 473 states have internal predecessors, (637), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 46 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-24 23:20:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 741 transitions. [2023-11-24 23:20:22,291 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 741 transitions. Word has length 111 [2023-11-24 23:20:22,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:22,292 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 741 transitions. [2023-11-24 23:20:22,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-24 23:20:22,293 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 741 transitions. [2023-11-24 23:20:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-24 23:20:22,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:22,295 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:22,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 23:20:22,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:22,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:22,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:22,508 INFO L85 PathProgramCache]: Analyzing trace with hash -65179501, now seen corresponding path program 1 times [2023-11-24 23:20:22,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:22,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061194975] [2023-11-24 23:20:22,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:22,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:20:22,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:22,510 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:20:22,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0f4123-9458-4143-9459-2de25ecc4d90/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-24 23:20:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:22,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 23:20:22,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:22,837 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 36 treesize of output 24 [2023-11-24 23:20:24,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:24,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2023-11-24 23:20:25,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:25,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2023-11-24 23:20:25,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:25,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2023-11-24 23:20:25,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:25,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2023-11-24 23:20:26,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:26,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2023-11-24 23:20:26,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:26,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 89 [2023-11-24 23:20:27,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:27,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 92 [2023-11-24 23:20:28,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:28,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 135 treesize of output 122 [2023-11-24 23:20:28,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:20:28,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 58 [2023-11-24 23:20:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-24 23:20:28,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:28,404 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:28,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061194975] [2023-11-24 23:20:28,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061194975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:28,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:28,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 23:20:28,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965723808] [2023-11-24 23:20:28,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:28,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:20:28,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:28,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:20:28,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=75, Unknown=1, NotChecked=0, Total=132 [2023-11-24 23:20:28,406 INFO L87 Difference]: Start difference. First operand 528 states and 741 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 6 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14)