./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:59:25,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:59:25,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:59:25,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:59:25,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:59:25,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:59:25,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:59:25,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:59:25,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:59:25,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:59:25,725 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:59:25,726 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:59:25,726 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:59:25,727 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:59:25,727 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:59:25,728 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:59:25,728 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:59:25,729 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:59:25,730 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:59:25,730 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:59:25,731 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:59:25,737 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:59:25,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:59:25,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:59:25,739 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:59:25,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:59:25,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:59:25,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:59:25,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:59:25,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:59:25,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:59:25,742 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:59:25,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:59:25,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:59:25,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:59:25,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:59:25,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:59:25,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:25,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:59:25,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:59:25,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:59:25,746 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:59:25,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:59:25,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:59:25,746 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:59:25,747 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:59:25,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:59:25,747 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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d [2023-11-24 23:59:26,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:59:26,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:59:26,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:59:26,079 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:59:26,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:59:26,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-11-24 23:59:29,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:59:29,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:59:29,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-11-24 23:59:29,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data/734dda9bf/ba39005f36284c4889b6676519943397/FLAGbea86a2bd [2023-11-24 23:59:29,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data/734dda9bf/ba39005f36284c4889b6676519943397 [2023-11-24 23:59:29,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:59:29,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:59:29,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:29,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:59:29,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:59:29,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:29,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768606e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29, skipping insertion in model container [2023-11-24 23:59:29,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:29,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:29,697 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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-11-24 23:59:29,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:29,803 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:59:29,820 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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-11-24 23:59:29,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:29,910 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:59:29,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29 WrapperNode [2023-11-24 23:59:29,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:29,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:29,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:59:29,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:59:29,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:29,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,001 INFO L138 Inliner]: procedures = 29, calls = 144, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 416 [2023-11-24 23:59:30,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:30,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:59:30,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:59:30,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:59:30,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:59:30,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:59:30,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:59:30,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:59:30,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:30,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:59:30,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:59:30,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:59:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:59:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:59:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:59:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:59:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:59:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:59:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:59:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:59:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:59:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:59:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:59:30,284 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:59:30,286 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:59:30,796 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:31,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:31,539 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:59:31,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:31 BoogieIcfgContainer [2023-11-24 23:59:31,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:31,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:31,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:31,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:31,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:59:29" (1/3) ... [2023-11-24 23:59:31,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2dccd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:31, skipping insertion in model container [2023-11-24 23:59:31,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29" (2/3) ... [2023-11-24 23:59:31,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2dccd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:31, skipping insertion in model container [2023-11-24 23:59:31,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:31" (3/3) ... [2023-11-24 23:59:31,557 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-47.i [2023-11-24 23:59:31,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:31,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:59:31,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:31,667 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;@5ac779df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:31,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:59:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 23:59:31,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:31,686 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 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 23:59:31,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:31,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1986173239, now seen corresponding path program 1 times [2023-11-24 23:59:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961877302] [2023-11-24 23:59:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:59:33,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:59:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:59:34,431 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:59:34,433 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:59:34,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:59:34,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:59:34,441 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:59:34,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:59:34,533 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-24 23:59:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-24 23:59:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-24 23:59:34,534 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-24 23:59:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-24 23:59:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-24 23:59:34,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:59:34,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-24 23:59:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-24 23:59:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:59:34,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-24 23:59:34,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-24 23:59:34,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-24 23:59:34,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-24 23:59:34,551 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-24 23:59:34,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-24 23:59:34,559 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:59:34,563 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:59:34,564 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:59:34,566 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:59:34,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:59:34,571 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:59:34,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:59:34,573 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:59:34,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-24 23:59:34,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-24 23:59:34,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-24 23:59:34,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-24 23:59:34,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-24 23:59:34,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-24 23:59:34,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:59:34 BoogieIcfgContainer [2023-11-24 23:59:34,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:59:34,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:59:34,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:59:34,606 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:59:34,607 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:31" (3/4) ... [2023-11-24 23:59:34,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:59:34,610 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:59:34,611 INFO L158 Benchmark]: Toolchain (without parser) took 5159.85ms. Allocated memory was 151.0MB in the beginning and 249.6MB in the end (delta: 98.6MB). Free memory was 107.8MB in the beginning and 103.3MB in the end (delta: 4.5MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. [2023-11-24 23:59:34,612 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:59:34,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.69ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 94.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:59:34,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.78ms. Allocated memory is still 151.0MB. Free memory was 94.1MB in the beginning and 91.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:59:34,614 INFO L158 Benchmark]: Boogie Preprocessor took 49.28ms. Allocated memory is still 151.0MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:59:34,615 INFO L158 Benchmark]: RCFGBuilder took 1489.56ms. Allocated memory is still 151.0MB. Free memory was 89.0MB in the beginning and 68.9MB in the end (delta: 20.1MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2023-11-24 23:59:34,615 INFO L158 Benchmark]: TraceAbstraction took 3059.89ms. Allocated memory was 151.0MB in the beginning and 249.6MB in the end (delta: 98.6MB). Free memory was 68.9MB in the beginning and 103.3MB in the end (delta: -34.4MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2023-11-24 23:59:34,616 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 249.6MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:59:34,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.69ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 94.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.78ms. Allocated memory is still 151.0MB. Free memory was 94.1MB in the beginning and 91.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.28ms. Allocated memory is still 151.0MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1489.56ms. Allocated memory is still 151.0MB. Free memory was 89.0MB in the beginning and 68.9MB in the end (delta: 20.1MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3059.89ms. Allocated memory was 151.0MB in the beginning and 249.6MB in the end (delta: 98.6MB). Free memory was 68.9MB in the beginning and 103.3MB in the end (delta: -34.4MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 249.6MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 62. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double* var_1_1_Pointer = &(var_1_1); [L24] double var_1_8 = 3.5; [L25] double* var_1_8_Pointer = &(var_1_8); [L26] signed char var_1_9 = 16; [L27] signed char* var_1_9_Pointer = &(var_1_9); [L28] signed char var_1_10 = 16; [L29] signed char* var_1_10_Pointer = &(var_1_10); [L30] signed char var_1_11 = 4; [L31] signed char* var_1_11_Pointer = &(var_1_11); [L32] signed long int var_1_12 = 8; [L33] signed long int* var_1_12_Pointer = &(var_1_12); [L34] unsigned char var_1_13 = 1; [L35] unsigned char* var_1_13_Pointer = &(var_1_13); [L36] unsigned char var_1_14 = 1; [L37] unsigned char* var_1_14_Pointer = &(var_1_14); [L38] double var_1_15 = 3.8; [L39] double* var_1_15_Pointer = &(var_1_15); [L40] signed long int last_1_var_1_12 = 8; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L87] EXPR \read(var_1_12) [L87] last_1_var_1_12 = var_1_12 [L97] RET updateLastVariables() [L98] CALL updateVariables() [L71] var_1_8 = __VERIFIER_nondet_double() [L72] EXPR \read(var_1_8) [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F [L72] EXPR \read(var_1_8) [L72] EXPR var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F [L72] EXPR (var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L72] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L74] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L75] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L76] var_1_11 = __VERIFIER_nondet_char() [L77] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L77] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L78] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] EXPR \read(var_1_13) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L81] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] EXPR \read(var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] EXPR \read(var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L84] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L98] RET updateVariables() [L99] CALL step() [L44] COND FALSE !(-4 > last_1_var_1_12) [L49] EXPR \read(*var_1_10_Pointer) [L49] (*(var_1_9_Pointer)) = (*(var_1_10_Pointer)) [L51] EXPR \read(*var_1_13_Pointer) [L51] unsigned char stepLocal_0 = ! (*(var_1_13_Pointer)); [L52] stepLocal_0 || (*(var_1_14_Pointer)) [L52] COND TRUE stepLocal_0 || (*(var_1_14_Pointer)) [L53] EXPR \read(*var_1_14_Pointer) [L53] COND FALSE !(! (*(var_1_14_Pointer))) [L56] EXPR \read(*var_1_9_Pointer) [L56] (*(var_1_12_Pointer)) = (*(var_1_9_Pointer)) [L59] EXPR \read(*var_1_8_Pointer) [L59] (*(var_1_15_Pointer)) = (*(var_1_8_Pointer)) [L60] EXPR \read(*var_1_15_Pointer) [L60] EXPR \read(*var_1_15_Pointer) [L60] COND TRUE (*(var_1_15_Pointer)) <= (*(var_1_15_Pointer)) [L61] EXPR \read(*var_1_12_Pointer) [L61] EXPR \read(*var_1_12_Pointer) [L61] EXPR \read(*var_1_12_Pointer) [L61] EXPR \read(*var_1_9_Pointer) [L61] COND TRUE ((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer))) [L62] EXPR \read(*var_1_8_Pointer) [L62] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L62] EXPR \read(*var_1_8_Pointer) [L62] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L62] (*(var_1_1_Pointer)) = (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR \read(*var_1_15_Pointer) [L90] EXPR \read(*var_1_15_Pointer) [L90] EXPR ((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_9_Pointer) [L90] EXPR (((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1 [L90] EXPR \read(*var_1_1_Pointer) [L90] EXPR \read(*var_1_8_Pointer) [L90] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L90] EXPR \read(*var_1_8_Pointer) [L90] EXPR (((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))) [L90] EXPR (((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1 [L90] EXPR ((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1) [L90] EXPR (((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer))))) [L90] EXPR ((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1) [L90] EXPR (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) [L90-L91] return (((((*(var_1_15_Pointer)) <= (*(var_1_15_Pointer))) ? ((((*(var_1_12_Pointer)) + (*(var_1_12_Pointer))) >= ((*(var_1_12_Pointer)) + (*(var_1_9_Pointer)))) ? ((*(var_1_1_Pointer)) == ((double) (((((*(var_1_8_Pointer))) < 0 ) ? -((*(var_1_8_Pointer))) : ((*(var_1_8_Pointer))))))) : 1) : (((*(var_1_12_Pointer)) > (*(var_1_9_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_8_Pointer)))) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? ((*(var_1_9_Pointer)) == ((signed char) (((((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) < 0 ) ? -((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))) : ((*(var_1_10_Pointer)) + (*(var_1_11_Pointer))))))) : 1) : ((*(var_1_9_Pointer)) == ((signed char) (*(var_1_10_Pointer)))))) && (((! (*(var_1_13_Pointer))) || (*(var_1_14_Pointer))) ? ((! (*(var_1_14_Pointer))) ? ((*(var_1_12_Pointer)) == ((signed long int) ((((((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) < 0 ) ? -(((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))) : (((((*(var_1_9_Pointer))) < ((*(var_1_9_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_9_Pointer))))))))) : ((*(var_1_12_Pointer)) == ((signed long int) (*(var_1_9_Pointer))))) : 1)) && ((*(var_1_15_Pointer)) == ((double) (*(var_1_8_Pointer)))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=8, var_1_10={7:0}, var_1_10_Pointer={7:0}, var_1_11={8:0}, var_1_11_Pointer={8:0}, var_1_12={9:0}, var_1_12_Pointer={9:0}, var_1_13={10:0}, var_1_13_Pointer={10:0}, var_1_14={11:0}, var_1_14_Pointer={11:0}, var_1_15={12:0}, var_1_15_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_8={5:0}, var_1_8_Pointer={5:0}, var_1_9={6:0}, var_1_9_Pointer={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 1, TraceHistogramMax: 9, 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=27occurred 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, 1.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 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 23:59:34,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:59:37,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:59:37,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:59:37,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:59:37,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:59:37,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:59:37,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:59:37,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:59:37,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:59:37,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:59:37,458 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:59:37,459 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:59:37,459 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:59:37,461 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:59:37,461 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:59:37,462 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:59:37,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:59:37,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:59:37,464 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:59:37,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:59:37,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:59:37,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:59:37,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:59:37,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:59:37,467 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:59:37,468 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:59:37,468 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:59:37,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:59:37,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:59:37,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:59:37,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:59:37,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:59:37,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:59:37,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:59:37,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:37,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:59:37,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:59:37,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:59:37,473 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:59:37,474 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:59:37,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:59:37,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:59:37,475 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:59:37,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:59:37,476 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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804ea379911faa50c100b1ca218961e1e4eb6bc8f92c2960862a083a6d1b879d [2023-11-24 23:59:37,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:59:37,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:59:37,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:59:37,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:59:37,900 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:59:37,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-11-24 23:59:41,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:59:41,359 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:59:41,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i [2023-11-24 23:59:41,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data/3ebe1282b/aae9fa5b36ba4d0e8163707dcdad0fd4/FLAG2a5c84145 [2023-11-24 23:59:41,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/data/3ebe1282b/aae9fa5b36ba4d0e8163707dcdad0fd4 [2023-11-24 23:59:41,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:59:41,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:59:41,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:41,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:59:41,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:59:41,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:41,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668f963e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41, skipping insertion in model container [2023-11-24 23:59:41,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:41,460 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:41,678 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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-11-24 23:59:41,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:41,805 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:59:41,824 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_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-47.i[916,929] [2023-11-24 23:59:41,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:41,890 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:59:41,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41 WrapperNode [2023-11-24 23:59:41,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:41,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:41,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:59:41,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:59:41,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:41,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,002 INFO L138 Inliner]: procedures = 33, calls = 144, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 414 [2023-11-24 23:59:42,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:42,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:59:42,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:59:42,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:59:42,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:59:42,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:59:42,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:59:42,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:59:42,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (1/1) ... [2023-11-24 23:59:42,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:42,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:59:42,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:59:42,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:59:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:59:42,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-24 23:59:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-24 23:59:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:59:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:59:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 23:59:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-24 23:59:42,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:59:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:59:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:59:42,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:59:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:59:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:59:42,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:59:42,433 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:59:42,436 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:59:43,180 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:43,282 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:43,282 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:59:43,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:43 BoogieIcfgContainer [2023-11-24 23:59:43,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:43,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:43,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:43,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:43,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:59:41" (1/3) ... [2023-11-24 23:59:43,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f98387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:43, skipping insertion in model container [2023-11-24 23:59:43,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:41" (2/3) ... [2023-11-24 23:59:43,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f98387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:43, skipping insertion in model container [2023-11-24 23:59:43,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:43" (3/3) ... [2023-11-24 23:59:43,301 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-47.i [2023-11-24 23:59:43,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:43,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:59:43,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:43,375 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;@25fba861, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:43,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:59:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:43,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:43,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:43,391 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:43,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:43,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:43,397 INFO L85 PathProgramCache]: Analyzing trace with hash -384607571, now seen corresponding path program 1 times [2023-11-24 23:59:43,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:43,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098037381] [2023-11-24 23:59:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:43,412 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 23:59:43,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:43,416 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:43,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:43,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:43,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:43,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:43,895 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:43,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098037381] [2023-11-24 23:59:43,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098037381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:43,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419612885] [2023-11-24 23:59:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:43,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:43,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:43,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:43,937 INFO L87 Difference]: Start difference. First operand has 89 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:46,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:59:46,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:46,172 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2023-11-24 23:59:46,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:46,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:46,187 INFO L225 Difference]: With dead ends: 201 [2023-11-24 23:59:46,187 INFO L226 Difference]: Without dead ends: 113 [2023-11-24 23:59:46,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:46,198 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 90 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:46,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 523 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 23:59:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-24 23:59:46,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2023-11-24 23:59:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 132 transitions. [2023-11-24 23:59:46,267 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 132 transitions. Word has length 79 [2023-11-24 23:59:46,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:46,271 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 132 transitions. [2023-11-24 23:59:46,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2023-11-24 23:59:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:46,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:46,277 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:46,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:46,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:46,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:46,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash 218336763, now seen corresponding path program 1 times [2023-11-24 23:59:46,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:46,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010398753] [2023-11-24 23:59:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:46,483 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 23:59:46,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:46,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:46,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:46,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:46,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:46,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:46,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:46,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010398753] [2023-11-24 23:59:46,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010398753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:46,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:46,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185478614] [2023-11-24 23:59:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:46,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:46,865 INFO L87 Difference]: Start difference. First operand 90 states and 132 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:46,989 INFO L93 Difference]: Finished difference Result 188 states and 275 transitions. [2023-11-24 23:59:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:59:46,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:46,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:46,992 INFO L225 Difference]: With dead ends: 188 [2023-11-24 23:59:46,992 INFO L226 Difference]: Without dead ends: 99 [2023-11-24 23:59:46,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:46,995 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:46,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 476 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:59:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-24 23:59:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2023-11-24 23:59:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-11-24 23:59:47,006 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 79 [2023-11-24 23:59:47,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:47,007 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-11-24 23:59:47,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-11-24 23:59:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:47,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:47,010 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:47,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:47,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:47,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:47,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:47,219 INFO L85 PathProgramCache]: Analyzing trace with hash 218396345, now seen corresponding path program 1 times [2023-11-24 23:59:47,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:47,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670991908] [2023-11-24 23:59:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:47,223 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 23:59:47,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:47,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:47,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:47,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:59:47,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:47,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:47,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2023-11-24 23:59:47,777 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:47,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:47,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:47,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670991908] [2023-11-24 23:59:47,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670991908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:47,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:47,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:47,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493544603] [2023-11-24 23:59:47,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:47,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:47,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:47,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:47,781 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:49,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:49,008 INFO L93 Difference]: Finished difference Result 292 states and 419 transitions. [2023-11-24 23:59:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:49,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:49,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:49,016 INFO L225 Difference]: With dead ends: 292 [2023-11-24 23:59:49,016 INFO L226 Difference]: Without dead ends: 199 [2023-11-24 23:59:49,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:49,019 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 135 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:49,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 369 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 23:59:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-24 23:59:49,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 97. [2023-11-24 23:59:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 86 states have internal predecessors, (122), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2023-11-24 23:59:49,035 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 79 [2023-11-24 23:59:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:49,035 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2023-11-24 23:59:49,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:49,036 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2023-11-24 23:59:49,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:49,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:49,038 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:49,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,246 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:49,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:49,247 INFO L85 PathProgramCache]: Analyzing trace with hash 919460923, now seen corresponding path program 1 times [2023-11-24 23:59:49,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:49,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766356111] [2023-11-24 23:59:49,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:49,248 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 23:59:49,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:49,256 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:49,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:49,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:49,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:49,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766356111] [2023-11-24 23:59:49,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766356111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:49,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:49,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:49,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747511165] [2023-11-24 23:59:49,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:49,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:49,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:49,537 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:49,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:49,660 INFO L93 Difference]: Finished difference Result 221 states and 320 transitions. [2023-11-24 23:59:49,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:49,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:49,663 INFO L225 Difference]: With dead ends: 221 [2023-11-24 23:59:49,663 INFO L226 Difference]: Without dead ends: 125 [2023-11-24 23:59:49,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 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 23:59:49,665 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 81 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:49,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 534 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:59:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-24 23:59:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 98. [2023-11-24 23:59:49,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:49,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-11-24 23:59:49,680 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 79 [2023-11-24 23:59:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:49,681 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-11-24 23:59:49,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:49,681 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-11-24 23:59:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:49,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:49,684 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:49,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,893 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:49,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1229513595, now seen corresponding path program 1 times [2023-11-24 23:59:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849455699] [2023-11-24 23:59:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:49,895 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 23:59:49,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:49,896 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:49,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/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 23:59:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:50,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-24 23:59:50,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:50,619 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 8 treesize of output 1 [2023-11-24 23:59:51,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-11-24 23:59:52,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-11-24 23:59:53,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-11-24 23:59:53,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-11-24 23:59:54,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2023-11-24 23:59:54,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:54,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 62 [2023-11-24 23:59:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-24 23:59:54,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:59:54,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:54,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849455699] [2023-11-24 23:59:54,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849455699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:59:54,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [350744120] [2023-11-24 23:59:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:54,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:59:54,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:59:55,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:59:55,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:59:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:56,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-24 23:59:56,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:56,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-11-24 23:59:58,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:00,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:01,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:02,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:02,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:03,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 94 [2023-11-25 00:00:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-25 00:00:04,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:00:05,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [350744120] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:00:05,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460702075] [2023-11-25 00:00:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:05,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:00:05,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:00:05,508 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:00:05,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc262ad-68cd-4fc1-af11-83812dbdc8b2/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-25 00:00:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:05,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-25 00:00:05,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:06,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-11-25 00:00:07,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:08,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:08,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:09,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:10,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 82 [2023-11-25 00:00:10,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 102 [2023-11-25 00:00:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-25 00:00:11,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:00:11,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460702075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:00:11,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:00:11,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-25 00:00:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175666199] [2023-11-25 00:00:11,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-25 00:00:11,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-25 00:00:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:00:11,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-25 00:00:11,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=914, Unknown=20, NotChecked=0, Total=1122 [2023-11-25 00:00:11,718 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 25 states, 25 states have (on average 3.44) internal successors, (86), 24 states have internal predecessors, (86), 10 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18)