./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:02:13,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:02:13,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:02:13,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:02:13,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:02:13,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:02:13,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:02:13,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:02:13,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:02:13,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:02:13,368 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:02:13,369 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:02:13,370 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:02:13,370 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:02:13,371 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:02:13,371 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:02:13,372 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:02:13,372 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:02:13,373 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:02:13,374 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:02:13,374 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:02:13,378 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:02:13,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:02:13,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:02:13,380 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:02:13,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:02:13,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:02:13,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:02:13,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:02:13,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:02:13,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:02:13,382 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:02:13,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:02:13,384 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:02:13,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:02:13,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:02:13,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:02:13,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:13,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:02:13,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:02:13,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:02:13,389 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:02:13,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:02:13,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:02:13,390 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:02:13,390 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:02:13,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:02:13,390 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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2023-11-25 00:02:13,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:02:13,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:02:13,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:02:13,760 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:02:13,761 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:02:13,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-25 00:02:16,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:17,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:17,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-25 00:02:17,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data/bb04b2bf1/18e49f3e1e5743be9a308f40b58890be/FLAG2e3af043b [2023-11-25 00:02:17,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data/bb04b2bf1/18e49f3e1e5743be9a308f40b58890be [2023-11-25 00:02:17,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:17,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:17,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:17,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:17,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:17,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8bf174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17, skipping insertion in model container [2023-11-25 00:02:17,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:17,421 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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-25 00:02:17,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:17,494 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:17,508 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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-25 00:02:17,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:17,610 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:17,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17 WrapperNode [2023-11-25 00:02:17,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:17,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:17,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:17,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:17,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,695 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 429 [2023-11-25 00:02:17,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:17,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:17,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:17,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:17,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:17,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:17,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:17,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:17,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (1/1) ... [2023-11-25 00:02:17,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:17,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:17,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:17,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-25 00:02:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:02:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-25 00:02:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:02:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-25 00:02:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:02:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:02:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:02:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:18,036 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:18,038 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:18,662 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:02:19,555 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:02:19,556 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:02:19,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:19 BoogieIcfgContainer [2023-11-25 00:02:19,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:02:19,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:02:19,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:02:19,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:02:19,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:17" (1/3) ... [2023-11-25 00:02:19,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c9b9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:19, skipping insertion in model container [2023-11-25 00:02:19,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:17" (2/3) ... [2023-11-25 00:02:19,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33c9b9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:19, skipping insertion in model container [2023-11-25 00:02:19,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:19" (3/3) ... [2023-11-25 00:02:19,573 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2023-11-25 00:02:19,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:02:19,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:02:19,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:02:19,672 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;@6675d935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:02:19,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:02:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-25 00:02:19,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:19,688 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:19,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:19,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1334574537, now seen corresponding path program 1 times [2023-11-25 00:02:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270763677] [2023-11-25 00:02:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:19,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:19,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:19,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773513573] [2023-11-25 00:02:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:19,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:19,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:19,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:19,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:02:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:02:20,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:02:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:02:21,462 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:02:21,465 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:02:21,466 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:02:21,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:21,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:21,684 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:02:21,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:02:21,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-25 00:02:21,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-25 00:02:21,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-25 00:02:21,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-25 00:02:21,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-25 00:02:21,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated [2023-11-25 00:02:21,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-25 00:02:21,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-25 00:02:21,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short51 could not be translated [2023-11-25 00:02:21,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-25 00:02:21,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-25 00:02:21,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated [2023-11-25 00:02:21,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-25 00:02:21,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-25 00:02:21,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-25 00:02:21,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short51 could not be translated [2023-11-25 00:02:21,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated [2023-11-25 00:02:21,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-25 00:02:21,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-25 00:02:21,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-25 00:02:21,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-25 00:02:21,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-25 00:02:21,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-25 00:02:21,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-25 00:02:21,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-25 00:02:21,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-25 00:02:21,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-25 00:02:21,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-25 00:02:21,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-25 00:02:21,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-25 00:02:21,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-25 00:02:21,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-25 00:02:21,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-25 00:02:21,742 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-25 00:02:21,742 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-25 00:02:21,743 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-25 00:02:21,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-25 00:02:21,755 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-25 00:02:21,755 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-25 00:02:21,756 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-25 00:02:21,756 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-25 00:02:21,757 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-25 00:02:21,758 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-25 00:02:21,758 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-25 00:02:21,759 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-11-25 00:02:21,760 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-11-25 00:02:21,760 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-25 00:02:21,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-25 00:02:21,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:02:21 BoogieIcfgContainer [2023-11-25 00:02:21,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:02:21,789 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:02:21,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:02:21,789 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:02:21,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:19" (3/4) ... [2023-11-25 00:02:21,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:02:21,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:02:21,802 INFO L158 Benchmark]: Toolchain (without parser) took 4596.76ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 113.2MB in the beginning and 84.6MB in the end (delta: 28.6MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,803 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:02:21,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.59ms. Allocated memory is still 153.1MB. Free memory was 113.2MB in the beginning and 98.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.58ms. Allocated memory is still 153.1MB. Free memory was 98.5MB in the beginning and 94.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,805 INFO L158 Benchmark]: Boogie Preprocessor took 78.97ms. Allocated memory is still 153.1MB. Free memory was 94.3MB in the beginning and 90.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,806 INFO L158 Benchmark]: RCFGBuilder took 1782.80ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 90.7MB in the beginning and 154.8MB in the end (delta: -64.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,806 INFO L158 Benchmark]: TraceAbstraction took 2226.42ms. Allocated memory is still 201.3MB. Free memory was 153.8MB in the beginning and 85.6MB in the end (delta: 68.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,807 INFO L158 Benchmark]: Witness Printer took 12.24ms. Allocated memory is still 201.3MB. Free memory was 85.6MB in the beginning and 84.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:02:21,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.59ms. Allocated memory is still 153.1MB. Free memory was 113.2MB in the beginning and 98.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.58ms. Allocated memory is still 153.1MB. Free memory was 98.5MB in the beginning and 94.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.97ms. Allocated memory is still 153.1MB. Free memory was 94.3MB in the beginning and 90.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1782.80ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 90.7MB in the beginning and 154.8MB in the end (delta: -64.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2226.42ms. Allocated memory is still 201.3MB. Free memory was 153.8MB in the beginning and 85.6MB in the end (delta: 68.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 12.24ms. Allocated memory is still 201.3MB. Free memory was 85.6MB in the beginning and 84.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 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 Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 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 someBinaryFLOATComparisonOperation at line 52, overapproximation of bitwiseOr at line 59, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 256 }; [L37] unsigned char last_1_unsigned_char_Array_0_2_ = 16; [L38] unsigned long int last_1_unsigned_long_int_Array_0_0_ = 256; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] CALL updateLastVariables() [L90] EXPR unsigned_char_Array_0[2] [L90] last_1_unsigned_char_Array_0_2_ = unsigned_char_Array_0[2] [L91] EXPR unsigned_long_int_Array_0[0] [L91] last_1_unsigned_long_int_Array_0_0_ = unsigned_long_int_Array_0[0] [L101] RET updateLastVariables() [L102] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L72] float_Array_0[0] = __VERIFIER_nondet_float() [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L73] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L74] float_Array_0[1] = __VERIFIER_nondet_float() [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L77] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L79] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L80] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L85] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L86] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L102] RET updateVariables() [L103] CALL step() [L42] EXPR signed_short_int_Array_0[0] [L42] signed short int stepLocal_3 = signed_short_int_Array_0[0]; [L43] unsigned long int stepLocal_2 = last_1_unsigned_long_int_Array_0_0_; [L44] COND FALSE !(last_1_unsigned_long_int_Array_0_0_ > stepLocal_3) [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR signed_short_int_Array_0[1] [L51] EXPR unsigned_char_Array_0[2] & signed_short_int_Array_0[1] [L51] EXPR unsigned_char_Array_0[0] [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR unsigned_char_Array_0[2] [L51] COND FALSE !((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) [L56] EXPR signed_short_int_Array_0[1] [L56] unsigned_long_int_Array_0[0] = signed_short_int_Array_0[1] [L58] EXPR unsigned_char_Array_0[2] [L58] unsigned char stepLocal_1 = unsigned_char_Array_0[2]; [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_long_int_Array_0[0] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L59] EXPR unsigned_long_int_Array_0[0] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L59] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) [L59] unsigned long int stepLocal_0 = unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))); [L60] EXPR unsigned_char_Array_0[2] [L60] COND FALSE !(stepLocal_0 != unsigned_char_Array_0[2]) [L65] float_Array_0[2] = 10.5f [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L94] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) [L94] EXPR float_Array_0[2] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) [L94-L95] return ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 1, TraceHistogramMax: 12, 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=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 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 [2023-11-25 00:02:21,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:02:24,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:02:24,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:02:24,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:02:24,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:02:24,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:02:24,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:02:24,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:02:24,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:02:24,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:02:24,582 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:02:24,582 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:02:24,583 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:02:24,585 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:02:24,586 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:02:24,586 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:02:24,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:02:24,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:02:24,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:02:24,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:02:24,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:02:24,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:02:24,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:02:24,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:02:24,592 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:02:24,593 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:02:24,593 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:02:24,594 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:02:24,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:02:24,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:02:24,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:02:24,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:02:24,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:02:24,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:02:24,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:24,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:02:24,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:02:24,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:02:24,600 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:02:24,601 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:02:24,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:02:24,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:02:24,602 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:02:24,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:02:24,603 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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2023-11-25 00:02:25,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:02:25,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:02:25,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:02:25,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:02:25,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:02:25,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-25 00:02:28,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:28,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:28,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2023-11-25 00:02:28,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data/9ecaa836b/2c5c636560244c23bab7be72e537db51/FLAG8bc8837bf [2023-11-25 00:02:28,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/data/9ecaa836b/2c5c636560244c23bab7be72e537db51 [2023-11-25 00:02:28,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:28,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:28,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:28,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:28,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:28,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:28" (1/1) ... [2023-11-25 00:02:28,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501b777f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:28, skipping insertion in model container [2023-11-25 00:02:28,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:28" (1/1) ... [2023-11-25 00:02:28,874 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:29,063 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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-25 00:02:29,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:29,141 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:29,153 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_3ba4683a-d762-4680-ae68-41a1b4ec2eab/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2023-11-25 00:02:29,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:29,285 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:29,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29 WrapperNode [2023-11-25 00:02:29,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:29,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:29,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:29,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:29,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,373 INFO L138 Inliner]: procedures = 36, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 390 [2023-11-25 00:02:29,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:29,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:29,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:29,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:29,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:29,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:29,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:29,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:29,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (1/1) ... [2023-11-25 00:02:29,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:29,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:29,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:29,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-25 00:02:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-25 00:02:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:02:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-25 00:02:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-25 00:02:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-25 00:02:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-25 00:02:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-25 00:02:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-25 00:02:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:02:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:02:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-25 00:02:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-25 00:02:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-25 00:02:29,714 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:29,716 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:31,191 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:02:31,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:02:31,235 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:02:31,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:31 BoogieIcfgContainer [2023-11-25 00:02:31,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:02:31,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:02:31,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:02:31,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:02:31,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:28" (1/3) ... [2023-11-25 00:02:31,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a5a431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:31, skipping insertion in model container [2023-11-25 00:02:31,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:29" (2/3) ... [2023-11-25 00:02:31,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a5a431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:31, skipping insertion in model container [2023-11-25 00:02:31,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:31" (3/3) ... [2023-11-25 00:02:31,244 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2023-11-25 00:02:31,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:02:31,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:02:31,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:02:31,327 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;@39a8f75a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:02:31,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:02:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:31,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-25 00:02:31,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:31,353 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:31,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:31,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1840276238, now seen corresponding path program 1 times [2023-11-25 00:02:31,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:31,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510736070] [2023-11-25 00:02:31,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:31,382 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 [2023-11-25 00:02:31,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:31,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:31,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:31,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:02:31,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-25 00:02:31,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:31,832 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:31,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510736070] [2023-11-25 00:02:31,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510736070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:31,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:31,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205261450] [2023-11-25 00:02:31,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:31,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:02:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:02:31,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:02:31,893 INFO L87 Difference]: Start difference. First operand has 85 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-25 00:02:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:31,953 INFO L93 Difference]: Finished difference Result 167 states and 264 transitions. [2023-11-25 00:02:31,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:02:31,956 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-11-25 00:02:31,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:31,965 INFO L225 Difference]: With dead ends: 167 [2023-11-25 00:02:31,965 INFO L226 Difference]: Without dead ends: 83 [2023-11-25 00:02:31,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:02:31,974 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:31,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:02:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-25 00:02:32,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-25 00:02:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 69 states have internal predecessors, (98), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:32,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 122 transitions. [2023-11-25 00:02:32,020 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 122 transitions. Word has length 98 [2023-11-25 00:02:32,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:32,021 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 122 transitions. [2023-11-25 00:02:32,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-25 00:02:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 122 transitions. [2023-11-25 00:02:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-25 00:02:32,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:32,027 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:32,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:32,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:32,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:32,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1929259934, now seen corresponding path program 1 times [2023-11-25 00:02:32,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:32,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41158796] [2023-11-25 00:02:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:32,235 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 [2023-11-25 00:02:32,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:32,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:32,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:32,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:02:32,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-25 00:02:32,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:32,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:32,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41158796] [2023-11-25 00:02:32,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41158796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:32,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:32,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:02:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549250731] [2023-11-25 00:02:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:32,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:32,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:32,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:32,593 INFO L87 Difference]: Start difference. First operand 83 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-25 00:02:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:32,752 INFO L93 Difference]: Finished difference Result 171 states and 252 transitions. [2023-11-25 00:02:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:02:32,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-11-25 00:02:32,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:32,755 INFO L225 Difference]: With dead ends: 171 [2023-11-25 00:02:32,755 INFO L226 Difference]: Without dead ends: 89 [2023-11-25 00:02:32,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:32,758 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:32,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:32,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-25 00:02:32,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2023-11-25 00:02:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2023-11-25 00:02:32,776 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 98 [2023-11-25 00:02:32,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:32,777 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2023-11-25 00:02:32,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-25 00:02:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-11-25 00:02:32,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-25 00:02:32,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:32,780 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:32,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:32,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:32,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:32,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash -486576416, now seen corresponding path program 1 times [2023-11-25 00:02:32,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:32,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060532204] [2023-11-25 00:02:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:32,995 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 [2023-11-25 00:02:32,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:32,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:33,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:33,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-25 00:02:33,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:33,395 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 19 treesize of output 1 [2023-11-25 00:02:33,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 44 [2023-11-25 00:02:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:33,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:33,528 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:33,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060532204] [2023-11-25 00:02:33,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060532204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:33,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:33,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:33,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251785387] [2023-11-25 00:02:33,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:33,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:33,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:33,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:33,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:33,533 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:35,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:35,579 INFO L93 Difference]: Finished difference Result 214 states and 312 transitions. [2023-11-25 00:02:35,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:02:35,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 98 [2023-11-25 00:02:35,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:35,584 INFO L225 Difference]: With dead ends: 214 [2023-11-25 00:02:35,584 INFO L226 Difference]: Without dead ends: 130 [2023-11-25 00:02:35,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:02:35,586 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 87 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:35,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 411 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-25 00:02:35,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-25 00:02:35,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 91. [2023-11-25 00:02:35,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 77 states have internal predecessors, (108), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 132 transitions. [2023-11-25 00:02:35,617 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 132 transitions. Word has length 98 [2023-11-25 00:02:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:35,618 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 132 transitions. [2023-11-25 00:02:35,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 132 transitions. [2023-11-25 00:02:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-25 00:02:35,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:35,622 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:35,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:35,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:35,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:35,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1453732003, now seen corresponding path program 1 times [2023-11-25 00:02:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:35,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18257896] [2023-11-25 00:02:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:35,833 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 [2023-11-25 00:02:35,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:35,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:35,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:36,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-25 00:02:36,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:36,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:36,289 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:36,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18257896] [2023-11-25 00:02:36,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18257896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:36,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:36,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:36,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582679954] [2023-11-25 00:02:36,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:36,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:36,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:36,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:36,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:36,292 INFO L87 Difference]: Start difference. First operand 91 states and 132 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:37,779 INFO L93 Difference]: Finished difference Result 215 states and 312 transitions. [2023-11-25 00:02:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:02:37,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 99 [2023-11-25 00:02:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:37,783 INFO L225 Difference]: With dead ends: 215 [2023-11-25 00:02:37,783 INFO L226 Difference]: Without dead ends: 125 [2023-11-25 00:02:37,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:02:37,785 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 76 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:37,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 245 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-25 00:02:37,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-25 00:02:37,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 96. [2023-11-25 00:02:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 82 states have internal predecessors, (115), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-11-25 00:02:37,797 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 99 [2023-11-25 00:02:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:37,798 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-11-25 00:02:37,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-11-25 00:02:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-25 00:02:37,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:37,801 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:37,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:38,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:38,006 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:38,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:38,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1846759013, now seen corresponding path program 1 times [2023-11-25 00:02:38,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:38,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420328824] [2023-11-25 00:02:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:38,008 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 [2023-11-25 00:02:38,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:38,010 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:38,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:38,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-25 00:02:38,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:38,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 26 [2023-11-25 00:02:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:38,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:38,652 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:38,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420328824] [2023-11-25 00:02:38,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420328824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:38,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:38,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-25 00:02:38,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333195918] [2023-11-25 00:02:38,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:38,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-25 00:02:38,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:38,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-25 00:02:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:02:38,656 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:41,075 INFO L93 Difference]: Finished difference Result 220 states and 318 transitions. [2023-11-25 00:02:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:02:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 99 [2023-11-25 00:02:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:41,078 INFO L225 Difference]: With dead ends: 220 [2023-11-25 00:02:41,078 INFO L226 Difference]: Without dead ends: 125 [2023-11-25 00:02:41,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:02:41,080 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 70 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:41,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 601 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-25 00:02:41,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-25 00:02:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 98. [2023-11-25 00:02:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-11-25 00:02:41,091 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 99 [2023-11-25 00:02:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:41,092 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-11-25 00:02:41,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-11-25 00:02:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-25 00:02:41,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:41,095 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:41,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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)] Ended with exit code 0 [2023-11-25 00:02:41,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:41,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:41,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:41,302 INFO L85 PathProgramCache]: Analyzing trace with hash 173868325, now seen corresponding path program 1 times [2023-11-25 00:02:41,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:41,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122907857] [2023-11-25 00:02:41,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:41,303 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 [2023-11-25 00:02:41,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:41,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:41,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-25 00:02:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:41,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-25 00:02:41,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:41,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:02:41,870 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 54 treesize of output 36 [2023-11-25 00:02:41,962 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:41,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:41,963 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:41,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122907857] [2023-11-25 00:02:41,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122907857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:41,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:41,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-25 00:02:41,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025803453] [2023-11-25 00:02:41,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:41,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-25 00:02:41,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:41,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-25 00:02:41,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:02:41,966 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:44,850 INFO L93 Difference]: Finished difference Result 248 states and 358 transitions. [2023-11-25 00:02:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:02:44,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 99 [2023-11-25 00:02:44,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:44,854 INFO L225 Difference]: With dead ends: 248 [2023-11-25 00:02:44,854 INFO L226 Difference]: Without dead ends: 151 [2023-11-25 00:02:44,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:02:44,856 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:44,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 540 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-25 00:02:44,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-25 00:02:44,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 100. [2023-11-25 00:02:44,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 144 transitions. [2023-11-25 00:02:44,868 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 144 transitions. Word has length 99 [2023-11-25 00:02:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:44,868 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 144 transitions. [2023-11-25 00:02:44,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 144 transitions. [2023-11-25 00:02:44,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-25 00:02:44,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:44,871 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:44,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:45,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:45,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:45,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 566895335, now seen corresponding path program 1 times [2023-11-25 00:02:45,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:45,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917845443] [2023-11-25 00:02:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:45,079 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 [2023-11-25 00:02:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:45,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:45,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-25 00:02:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:45,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-25 00:02:45,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:45,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:45,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:45,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917845443] [2023-11-25 00:02:45,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917845443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:45,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:45,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708304878] [2023-11-25 00:02:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:45,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:45,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:45,539 INFO L87 Difference]: Start difference. First operand 100 states and 144 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:47,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:47,654 INFO L93 Difference]: Finished difference Result 234 states and 335 transitions. [2023-11-25 00:02:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:02:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 99 [2023-11-25 00:02:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:47,658 INFO L225 Difference]: With dead ends: 234 [2023-11-25 00:02:47,658 INFO L226 Difference]: Without dead ends: 135 [2023-11-25 00:02:47,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-25 00:02:47,660 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:47,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 340 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-25 00:02:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-25 00:02:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 102. [2023-11-25 00:02:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.375) internal successors, (121), 88 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2023-11-25 00:02:47,674 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 99 [2023-11-25 00:02:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:47,675 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2023-11-25 00:02:47,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2023-11-25 00:02:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-25 00:02:47,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:47,678 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:47,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:47,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:47,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:47,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash 989048718, now seen corresponding path program 1 times [2023-11-25 00:02:47,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:47,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267058294] [2023-11-25 00:02:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:47,881 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 [2023-11-25 00:02:47,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:47,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:47,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (9)] Waiting until timeout for monitored process [2023-11-25 00:02:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:48,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:48,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:48,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:48,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267058294] [2023-11-25 00:02:48,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267058294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:48,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:48,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:48,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891381770] [2023-11-25 00:02:48,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:48,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:48,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:48,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:48,185 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:48,323 INFO L93 Difference]: Finished difference Result 220 states and 314 transitions. [2023-11-25 00:02:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:02:48,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 100 [2023-11-25 00:02:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:48,326 INFO L225 Difference]: With dead ends: 220 [2023-11-25 00:02:48,326 INFO L226 Difference]: Without dead ends: 119 [2023-11-25 00:02:48,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-25 00:02:48,328 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 53 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 478 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 [2023-11-25 00:02:48,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 478 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-25 00:02:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 103. [2023-11-25 00:02:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 89 states have (on average 1.3707865168539326) internal successors, (122), 89 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2023-11-25 00:02:48,337 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 100 [2023-11-25 00:02:48,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:48,337 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2023-11-25 00:02:48,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2023-11-25 00:02:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-25 00:02:48,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:48,340 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:48,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (9)] Ended with exit code 0 [2023-11-25 00:02:48,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:48,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:48,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:48,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1487731701, now seen corresponding path program 1 times [2023-11-25 00:02:48,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:48,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101626959] [2023-11-25 00:02:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:48,547 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 [2023-11-25 00:02:48,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:48,548 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:48,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (10)] Waiting until timeout for monitored process [2023-11-25 00:02:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:48,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:48,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:48,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:48,863 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:48,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101626959] [2023-11-25 00:02:48,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101626959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:48,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:48,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:02:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453628010] [2023-11-25 00:02:48,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:48,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:02:48,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:02:48,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:48,870 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:48,991 INFO L93 Difference]: Finished difference Result 214 states and 304 transitions. [2023-11-25 00:02:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:02:48,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 100 [2023-11-25 00:02:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:48,993 INFO L225 Difference]: With dead ends: 214 [2023-11-25 00:02:48,994 INFO L226 Difference]: Without dead ends: 112 [2023-11-25 00:02:48,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-25 00:02:48,995 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 44 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:48,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 438 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-25 00:02:49,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2023-11-25 00:02:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.358695652173913) internal successors, (125), 92 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:02:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 149 transitions. [2023-11-25 00:02:49,003 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 149 transitions. Word has length 100 [2023-11-25 00:02:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:49,004 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 149 transitions. [2023-11-25 00:02:49,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:02:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 149 transitions. [2023-11-25 00:02:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-25 00:02:49,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:49,006 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:02:49,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (10)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:49,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:02:49,212 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:02:49,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash 457158088, now seen corresponding path program 1 times [2023-11-25 00:02:49,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:02:49,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178867733] [2023-11-25 00:02:49,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:49,213 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 [2023-11-25 00:02:49,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:02:49,214 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:02:49,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (11)] Waiting until timeout for monitored process [2023-11-25 00:02:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:49,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-25 00:02:49,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:49,979 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 [2023-11-25 00:02:50,305 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 20 treesize of output 15 [2023-11-25 00:02:50,522 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 20 treesize of output 15 [2023-11-25 00:02:51,517 INFO L349 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2023-11-25 00:02:51,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2023-11-25 00:02:51,761 INFO L349 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2023-11-25 00:02:51,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2023-11-25 00:02:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 93 proven. 89 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-25 00:02:51,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:02:52,147 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:02:52,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178867733] [2023-11-25 00:02:52,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178867733] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:02:52,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [565534902] [2023-11-25 00:02:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:52,148 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:02:52,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:02:52,153 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:02:52,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-25 00:02:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:53,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-25 00:02:53,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:53,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-25 00:02:54,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-11-25 00:02:55,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2023-11-25 00:02:55,644 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 35 treesize of output 26 [2023-11-25 00:02:55,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2023-11-25 00:02:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 99 proven. 89 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-25 00:02:55,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:02:55,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [565534902] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:02:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764857325] [2023-11-25 00:02:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:55,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:55,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:55,915 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:55,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-25 00:02:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:56,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-25 00:02:56,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:57,248 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 19 treesize of output 19 [2023-11-25 00:02:57,752 INFO L349 Elim1Store]: treesize reduction 6, result has 77.8 percent of original size [2023-11-25 00:02:57,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 47 [2023-11-25 00:02:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:02:57,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:57,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764857325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:57,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:02:57,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 10] total 22 [2023-11-25 00:02:57,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861934439] [2023-11-25 00:02:57,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:57,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-25 00:02:57,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:02:57,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-25 00:02:57,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2023-11-25 00:02:57,912 INFO L87 Difference]: Start difference. First operand 106 states and 149 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:03:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:01,859 INFO L93 Difference]: Finished difference Result 258 states and 360 transitions. [2023-11-25 00:03:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-25 00:03:01,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-11-25 00:03:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:01,863 INFO L225 Difference]: With dead ends: 258 [2023-11-25 00:03:01,863 INFO L226 Difference]: Without dead ends: 153 [2023-11-25 00:03:01,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 321 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=117, Invalid=753, Unknown=0, NotChecked=0, Total=870 [2023-11-25 00:03:01,865 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 130 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:01,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 364 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2023-11-25 00:03:01,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-25 00:03:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 111. [2023-11-25 00:03:01,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 97 states have internal predecessors, (132), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:03:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 156 transitions. [2023-11-25 00:03:01,874 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 156 transitions. Word has length 101 [2023-11-25 00:03:01,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:01,875 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 156 transitions. [2023-11-25 00:03:01,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-25 00:03:01,876 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 156 transitions. [2023-11-25 00:03:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-25 00:03:01,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:01,877 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:01,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:02,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-11-25 00:03:02,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:02,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 [2023-11-25 00:03:02,495 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:03:02,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1131189814, now seen corresponding path program 1 times [2023-11-25 00:03:02,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:03:02,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320848349] [2023-11-25 00:03:02,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:02,497 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 [2023-11-25 00:03:02,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:03:02,498 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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) [2023-11-25 00:03:02,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ba4683a-d762-4680-ae68-41a1b4ec2eab/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 (14)] Waiting until timeout for monitored process [2023-11-25 00:03:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:02,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-25 00:03:02,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:03,819 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 [2023-11-25 00:03:04,048 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 [2023-11-25 00:03:04,440 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 35 treesize of output 31 [2023-11-25 00:03:04,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2023-11-25 00:03:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-25 00:03:04,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:04,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:03:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320848349] [2023-11-25 00:03:04,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320848349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:04,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:04,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-25 00:03:04,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831467355] [2023-11-25 00:03:04,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:04,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-25 00:03:04,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:03:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-25 00:03:04,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:03:04,751 INFO L87 Difference]: Start difference. First operand 111 states and 156 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)