./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:14:01,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:14:01,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:14:01,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:14:01,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:14:01,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:14:01,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:14:01,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:14:01,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:14:01,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:14:01,982 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:14:01,983 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:14:01,984 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:14:01,984 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:14:01,985 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:14:01,985 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:14:01,986 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:14:01,986 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:14:01,987 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:14:01,987 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:14:01,988 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:14:01,989 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:14:01,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:14:01,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:14:01,990 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:14:01,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:14:01,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:14:01,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:14:01,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:14:01,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:14:01,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:14:01,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:14:01,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:14:01,994 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:14:01,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:14:01,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:14:02,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:14:02,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:14:02,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:14:02,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:14:02,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:14:02,003 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:14:02,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:14:02,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:14:02,004 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:14:02,005 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:14:02,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:14:02,005 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_c00494e0-23b1-43da-9b89-41dcb5a3589a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2023-11-24 23:14:02,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:14:02,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:14:02,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:14:02,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:14:02,358 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:14:02,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-24 23:14:05,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:14:05,767 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:14:05,768 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-24 23:14:05,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data/884320643/89161e7553e548b1b97492152cdfd155/FLAGf60dd83de [2023-11-24 23:14:05,801 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data/884320643/89161e7553e548b1b97492152cdfd155 [2023-11-24 23:14:05,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:14:05,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:14:05,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:14:05,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:14:05,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:14:05,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:14:05" (1/1) ... [2023-11-24 23:14:05,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c40a5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:05, skipping insertion in model container [2023-11-24 23:14:05,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:14:05" (1/1) ... [2023-11-24 23:14:05,868 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:14:06,051 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_c00494e0-23b1-43da-9b89-41dcb5a3589a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-24 23:14:06,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:14:06,194 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:14:06,204 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_c00494e0-23b1-43da-9b89-41dcb5a3589a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-24 23:14:06,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:14:06,294 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:14:06,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06 WrapperNode [2023-11-24 23:14:06,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:14:06,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:14:06,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:14:06,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:14:06,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,379 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2023-11-24 23:14:06,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:14:06,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:14:06,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:14:06,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:14:06,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:14:06,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:14:06,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:14:06,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:14:06,541 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (1/1) ... [2023-11-24 23:14:06,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:14:06,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:06,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:14:06,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:14:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:14:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:14:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:14:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:14:06,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:14:06,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:14:06,772 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:14:06,774 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:14:07,368 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:14:07,889 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:14:07,890 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:14:07,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:07 BoogieIcfgContainer [2023-11-24 23:14:07,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:14:07,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:14:07,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:14:07,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:14:07,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:14:05" (1/3) ... [2023-11-24 23:14:07,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7ee347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:14:07, skipping insertion in model container [2023-11-24 23:14:07,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:06" (2/3) ... [2023-11-24 23:14:07,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7ee347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:14:07, skipping insertion in model container [2023-11-24 23:14:07,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:07" (3/3) ... [2023-11-24 23:14:07,909 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-24 23:14:07,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:14:07,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:14:07,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:14:08,006 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;@10f51209, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:14:08,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:14:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-24 23:14:08,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-24 23:14:08,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:08,028 INFO L195 NwaCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:08,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:08,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1869448620, now seen corresponding path program 1 times [2023-11-24 23:14:08,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:14:08,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215885767] [2023-11-24 23:14:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:08,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:14:08,313 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:14:08,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339192114] [2023-11-24 23:14:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:08,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:08,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:08,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:14:08,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:14:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:14:08,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:14:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:14:09,146 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:14:09,148 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:14:09,150 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:14:09,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-24 23:14:09,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:09,365 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:14:09,369 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:14:09,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:14:09 BoogieIcfgContainer [2023-11-24 23:14:09,503 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:14:09,503 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:14:09,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:14:09,504 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:14:09,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:07" (3/4) ... [2023-11-24 23:14:09,507 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:14:09,508 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:14:09,510 INFO L158 Benchmark]: Toolchain (without parser) took 3704.21ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 133.3MB in the beginning and 83.8MB in the end (delta: 49.5MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2023-11-24 23:14:09,511 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:14:09,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.24ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 115.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:14:09,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.82ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 110.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:14:09,513 INFO L158 Benchmark]: Boogie Preprocessor took 150.11ms. Allocated memory is still 165.7MB. Free memory was 110.8MB in the beginning and 131.4MB in the end (delta: -20.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:14:09,514 INFO L158 Benchmark]: RCFGBuilder took 1360.39ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 131.4MB in the beginning and 143.6MB in the end (delta: -12.2MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2023-11-24 23:14:09,514 INFO L158 Benchmark]: TraceAbstraction took 1605.85ms. Allocated memory is still 199.2MB. Free memory was 142.5MB in the beginning and 83.8MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-24 23:14:09,515 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 199.2MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:14:09,518 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.24ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 115.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.82ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 110.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 150.11ms. Allocated memory is still 165.7MB. Free memory was 110.8MB in the beginning and 131.4MB in the end (delta: -20.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1360.39ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 131.4MB in the beginning and 143.6MB in the end (delta: -12.2MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1605.85ms. Allocated memory is still 199.2MB. Free memory was 142.5MB in the beginning and 83.8MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 199.2MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 205, overapproximation of shiftLeft at line 131, overapproximation of someBinaryArithmeticFLOAToperation at line 132. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 1; [L23] unsigned short int var_1_3 = 36007; [L24] unsigned short int var_1_5 = 32; [L25] unsigned short int var_1_6 = 128; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 1; [L28] unsigned long int var_1_10 = 128; [L29] unsigned short int var_1_11 = 1; [L30] signed char var_1_12 = 50; [L31] signed char var_1_13 = -10; [L32] signed char var_1_14 = 1; [L33] signed char var_1_15 = 0; [L34] signed char var_1_16 = -5; [L35] signed short int var_1_17 = -32; [L36] unsigned short int var_1_19 = 10; [L37] signed char var_1_20 = 2; [L38] signed char var_1_22 = 16; [L39] float var_1_23 = 3.225; [L40] unsigned char var_1_24 = 128; [L41] float var_1_25 = 127.875; [L42] float var_1_26 = 7.6; [L43] unsigned char var_1_27 = 1; [L44] unsigned char var_1_28 = 0; [L45] signed char var_1_29 = 32; [L46] unsigned char var_1_30 = 64; [L47] unsigned char var_1_31 = 64; [L48] unsigned char var_1_32 = 100; [L49] unsigned char var_1_33 = 2; [L50] unsigned char var_1_34 = 10; [L51] signed short int var_1_35 = 200; [L52] signed char var_1_36 = -10; [L53] unsigned long int last_1_var_1_10 = 128; [L54] unsigned short int last_1_var_1_11 = 1; [L55] unsigned char last_1_var_1_30 = 64; [L56] signed short int last_1_var_1_35 = 200; [L209] isInitial = 1 [L210] FCALL initially() [L211] COND TRUE 1 [L212] CALL updateLastVariables() [L199] last_1_var_1_10 = var_1_10 [L200] last_1_var_1_11 = var_1_11 [L201] last_1_var_1_30 = var_1_30 [L202] last_1_var_1_35 = var_1_35 [L212] RET updateLastVariables() [L213] CALL updateVariables() [L151] var_1_3 = __VERIFIER_nondet_ushort() [L152] CALL assume_abort_if_not(var_1_3 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_3 >= 32767) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L153] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L154] var_1_5 = __VERIFIER_nondet_ushort() [L155] CALL assume_abort_if_not(var_1_5 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_5 >= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=128, var_1_8=1, var_1_9=1] [L156] CALL assume_abort_if_not(var_1_5 <= 32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_5 <= 32768) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=128, var_1_8=1, var_1_9=1] [L157] var_1_6 = __VERIFIER_nondet_ushort() [L158] CALL assume_abort_if_not(var_1_6 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_6 >= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L159] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L160] var_1_9 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L162] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L163] var_1_13 = __VERIFIER_nondet_char() [L164] CALL assume_abort_if_not(var_1_13 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_13 >= -126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L165] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L166] var_1_14 = __VERIFIER_nondet_char() [L167] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L168] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L169] var_1_15 = __VERIFIER_nondet_char() [L170] CALL assume_abort_if_not(var_1_15 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_15 >= -63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L171] CALL assume_abort_if_not(var_1_15 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_15 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L172] var_1_16 = __VERIFIER_nondet_char() [L173] CALL assume_abort_if_not(var_1_16 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_16 >= -63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L174] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L175] var_1_22 = __VERIFIER_nondet_char() [L176] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L177] CALL assume_abort_if_not(var_1_22 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_22 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L178] var_1_24 = __VERIFIER_nondet_uchar() [L179] CALL assume_abort_if_not(var_1_24 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L179] RET assume_abort_if_not(var_1_24 >= 127) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L180] CALL assume_abort_if_not(var_1_24 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_24 <= 255) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L181] var_1_25 = __VERIFIER_nondet_float() [L182] CALL assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L182] RET assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L183] var_1_26 = __VERIFIER_nondet_float() [L184] CALL assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L184] RET assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L185] var_1_28 = __VERIFIER_nondet_uchar() [L186] CALL assume_abort_if_not(var_1_28 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L186] RET assume_abort_if_not(var_1_28 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L187] CALL assume_abort_if_not(var_1_28 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L187] RET assume_abort_if_not(var_1_28 <= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L188] var_1_31 = __VERIFIER_nondet_uchar() [L189] CALL assume_abort_if_not(var_1_31 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L189] RET assume_abort_if_not(var_1_31 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L190] CALL assume_abort_if_not(var_1_31 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L190] RET assume_abort_if_not(var_1_31 <= 64) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L191] var_1_32 = __VERIFIER_nondet_uchar() [L192] CALL assume_abort_if_not(var_1_32 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L192] RET assume_abort_if_not(var_1_32 >= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L193] CALL assume_abort_if_not(var_1_32 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L193] RET assume_abort_if_not(var_1_32 <= 127) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L194] var_1_33 = __VERIFIER_nondet_uchar() [L195] CALL assume_abort_if_not(var_1_33 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L195] RET assume_abort_if_not(var_1_33 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L196] CALL assume_abort_if_not(var_1_33 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=0, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L196] RET assume_abort_if_not(var_1_33 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=127, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=0, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L213] RET updateVariables() [L214] CALL step() [L60] COND TRUE last_1_var_1_11 < last_1_var_1_35 [L61] var_1_27 = (var_1_28 || (! var_1_9)) [L69] signed long int stepLocal_7 = -16; [L70] COND FALSE !(stepLocal_7 == last_1_var_1_10) [L73] signed long int stepLocal_6 = 25 * (var_1_34 - var_1_24); [L74] COND FALSE !(stepLocal_6 >= last_1_var_1_30) [L77] COND TRUE ! var_1_27 [L78] COND FALSE !(\read(var_1_27)) [L81] COND FALSE !(var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) [L88] signed long int stepLocal_0 = (((10) < 0 ) ? -(10) : (10)); [L89] COND FALSE !(stepLocal_0 > var_1_34) [L92] var_1_12 = (var_1_15 + var_1_16) [L94] var_1_35 = var_1_32 [L95] var_1_36 = var_1_33 [L96] COND FALSE !(var_1_34 > (var_1_3 - var_1_6)) [L99] var_1_8 = (var_1_27 || var_1_9) [L101] COND TRUE \read(var_1_8) [L102] var_1_19 = (var_1_34 + var_1_14) [L104] COND TRUE var_1_6 > var_1_30 [L105] COND TRUE var_1_34 <= var_1_3 [L106] COND FALSE !(var_1_19 <= var_1_34) [L109] var_1_11 = var_1_6 [L117] COND TRUE var_1_34 <= var_1_35 [L118] var_1_10 = (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))) [L124] unsigned short int stepLocal_1 = var_1_5; [L125] COND FALSE !(var_1_6 > stepLocal_1) [L128] signed short int stepLocal_3 = var_1_17; [L129] signed char stepLocal_2 = var_1_15; [L130] COND FALSE !(var_1_3 < stepLocal_3) [L135] var_1_23 = 15.79f [L137] unsigned char stepLocal_5 = var_1_27; [L138] unsigned short int stepLocal_4 = var_1_19; [L139] COND FALSE !(stepLocal_5 && var_1_27) [L144] var_1_29 = ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))) [L146] COND TRUE (var_1_30 * 1) <= (var_1_36 + var_1_11) [L147] var_1_20 = (var_1_14 - var_1_22) [L214] RET step() [L215] CALL, EXPR property() [L205] EXPR (((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f))) [L205] EXPR (var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f)) [L205] EXPR (((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f))) [L205-L206] return (((((((((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f)))) && ((last_1_var_1_11 < last_1_var_1_35) ? (var_1_27 == ((unsigned char) (var_1_28 || (! var_1_9)))) : ((var_1_14 == var_1_6) ? (var_1_27 == ((unsigned char) var_1_28)) : (var_1_27 == ((unsigned char) var_1_28))))) && ((var_1_27 && var_1_27) ? ((var_1_1 < var_1_19) ? (var_1_29 == ((signed char) ((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))))) : 1) : (var_1_29 == ((signed char) ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))))))) && (((25 * (var_1_34 - var_1_24)) >= last_1_var_1_30) ? (var_1_30 == ((unsigned char) ((var_1_31 + 8) + (var_1_32 - var_1_33)))) : 1)) && ((-16 == last_1_var_1_10) ? (var_1_34 == ((unsigned char) ((((var_1_33) > (var_1_14)) ? (var_1_33) : (var_1_14))))) : 1)) && (var_1_35 == ((signed short int) var_1_32))) && (var_1_36 == ((signed char) var_1_33)) ; [L215] RET, EXPR property() [L215] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=65598, var_1_11=65, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=11, var_1_1=1, var_1_20=1, var_1_22=0, var_1_23=1579/100, var_1_24=127, var_1_27=0, var_1_28=0, var_1_29=0, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=0, var_1_34=10, var_1_35=127, var_1_36=0, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=65598, var_1_11=65, var_1_12=0, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_19=11, var_1_1=1, var_1_20=1, var_1_22=0, var_1_23=1579/100, var_1_24=127, var_1_27=0, var_1_28=0, var_1_29=0, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=0, var_1_34=10, var_1_35=127, var_1_36=0, var_1_3=65534, var_1_5=65, var_1_6=65, var_1_8=1, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 30, 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=55occurred 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, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:14:09,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:14:12,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:14:12,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:14:12,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:14:12,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:14:12,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:14:12,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:14:12,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:14:12,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:14:12,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:14:12,579 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:14:12,579 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:14:12,580 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:14:12,582 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:14:12,582 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:14:12,583 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:14:12,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:14:12,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:14:12,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:14:12,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:14:12,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:14:12,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:14:12,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:14:12,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:14:12,589 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:14:12,589 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:14:12,590 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:14:12,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:14:12,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:14:12,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:14:12,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:14:12,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:14:12,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:14:12,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:14:12,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:14:12,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:14:12,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:14:12,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:14:12,596 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:14:12,597 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:12,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:14:12,598 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:14:12,598 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:14:12,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:14:12,601 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_c00494e0-23b1-43da-9b89-41dcb5a3589a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2023-11-24 23:14:13,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:14:13,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:14:13,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:14:13,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:14:13,067 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:14:13,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-24 23:14:16,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:14:16,554 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:14:16,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-24 23:14:16,573 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data/f0afce2d2/990fca8263724f0aacef3054c778935f/FLAGcd224114e [2023-11-24 23:14:16,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/data/f0afce2d2/990fca8263724f0aacef3054c778935f [2023-11-24 23:14:16,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:14:16,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:14:16,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:14:16,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:14:16,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:14:16,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:14:16" (1/1) ... [2023-11-24 23:14:16,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b9109a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:16, skipping insertion in model container [2023-11-24 23:14:16,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:14:16" (1/1) ... [2023-11-24 23:14:16,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:14:16,869 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_c00494e0-23b1-43da-9b89-41dcb5a3589a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-24 23:14:17,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:14:17,029 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:14:17,047 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_c00494e0-23b1-43da-9b89-41dcb5a3589a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-24 23:14:17,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:14:17,175 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:14:17,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17 WrapperNode [2023-11-24 23:14:17,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:14:17,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:14:17,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:14:17,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:14:17,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,277 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-11-24 23:14:17,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:14:17,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:14:17,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:14:17,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:14:17,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:14:17,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:14:17,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:14:17,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:14:17,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (1/1) ... [2023-11-24 23:14:17,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:14:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:17,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:14:17,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:14:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:14:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:14:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:14:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:14:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:14:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:14:17,619 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:14:17,622 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:14:18,401 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:14:18,515 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:14:18,515 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:14:18,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:18 BoogieIcfgContainer [2023-11-24 23:14:18,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:14:18,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:14:18,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:14:18,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:14:18,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:14:16" (1/3) ... [2023-11-24 23:14:18,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97c2edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:14:18, skipping insertion in model container [2023-11-24 23:14:18,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:14:17" (2/3) ... [2023-11-24 23:14:18,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97c2edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:14:18, skipping insertion in model container [2023-11-24 23:14:18,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:14:18" (3/3) ... [2023-11-24 23:14:18,525 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-24 23:14:18,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:14:18,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:14:18,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:14:18,609 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;@46ddc56d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:14:18,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:14:18,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-24 23:14:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-24 23:14:18,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:18,645 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:18,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:18,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1403776452, now seen corresponding path program 1 times [2023-11-24 23:14:18,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:18,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387769509] [2023-11-24 23:14:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:18,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:18,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:18,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:18,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:14:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:19,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:14:19,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 874 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2023-11-24 23:14:19,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:14:19,240 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:19,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387769509] [2023-11-24 23:14:19,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387769509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:14:19,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:14:19,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:14:19,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164537928] [2023-11-24 23:14:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:14:19,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:14:19,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:14:19,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:14:19,302 INFO L87 Difference]: Start difference. First operand has 87 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-24 23:14:19,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:19,551 INFO L93 Difference]: Finished difference Result 171 states and 308 transitions. [2023-11-24 23:14:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:14:19,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 191 [2023-11-24 23:14:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:19,567 INFO L225 Difference]: With dead ends: 171 [2023-11-24 23:14:19,568 INFO L226 Difference]: Without dead ends: 85 [2023-11-24 23:14:19,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:14:19,576 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:19,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:14:19,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-24 23:14:19,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-24 23:14:19,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 states have internal predecessors, (75), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-24 23:14:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions. [2023-11-24 23:14:19,629 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 191 [2023-11-24 23:14:19,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:19,630 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 135 transitions. [2023-11-24 23:14:19,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-24 23:14:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2023-11-24 23:14:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-24 23:14:19,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:19,653 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:19,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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)] Ended with exit code 0 [2023-11-24 23:14:19,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:19,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:19,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1689953976, now seen corresponding path program 1 times [2023-11-24 23:14:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:19,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268480673] [2023-11-24 23:14:19,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:19,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:19,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:19,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:19,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:14:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:20,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:14:20,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-24 23:14:20,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:14:20,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268480673] [2023-11-24 23:14:20,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268480673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:14:20,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:14:20,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:14:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131968472] [2023-11-24 23:14:20,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:14:20,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:14:20,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:20,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:14:20,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:14:20,848 INFO L87 Difference]: Start difference. First operand 85 states and 135 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:21,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:21,725 INFO L93 Difference]: Finished difference Result 268 states and 424 transitions. [2023-11-24 23:14:21,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:14:21,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-11-24 23:14:21,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:21,741 INFO L225 Difference]: With dead ends: 268 [2023-11-24 23:14:21,742 INFO L226 Difference]: Without dead ends: 184 [2023-11-24 23:14:21,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:14:21,745 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 165 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:21,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 440 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:14:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-24 23:14:21,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2023-11-24 23:14:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 104 states have internal predecessors, (147), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-24 23:14:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 267 transitions. [2023-11-24 23:14:21,803 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 267 transitions. Word has length 191 [2023-11-24 23:14:21,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:21,806 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 267 transitions. [2023-11-24 23:14:21,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 267 transitions. [2023-11-24 23:14:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-24 23:14:21,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:21,825 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:21,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:22,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:22,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:22,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:22,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1267252150, now seen corresponding path program 1 times [2023-11-24 23:14:22,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:22,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425042551] [2023-11-24 23:14:22,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:22,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:22,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:22,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:22,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:14:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:22,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:14:22,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-24 23:14:23,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:23,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425042551] [2023-11-24 23:14:23,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425042551] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [87289247] [2023-11-24 23:14:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:23,758 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:23,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:14:23,764 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:14:23,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:14:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:24,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:14:24,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-24 23:14:24,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:14:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [87289247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:14:24,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:14:24,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 14 [2023-11-24 23:14:24,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920084402] [2023-11-24 23:14:24,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:14:24,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:14:24,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:24,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:14:24,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-24 23:14:24,243 INFO L87 Difference]: Start difference. First operand 167 states and 267 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:24,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:24,621 INFO L93 Difference]: Finished difference Result 499 states and 799 transitions. [2023-11-24 23:14:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:14:24,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-11-24 23:14:24,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:24,628 INFO L225 Difference]: With dead ends: 499 [2023-11-24 23:14:24,628 INFO L226 Difference]: Without dead ends: 333 [2023-11-24 23:14:24,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 557 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-24 23:14:24,633 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 131 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:24,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 359 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:14:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-24 23:14:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 169. [2023-11-24 23:14:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 106 states have internal predecessors, (149), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-24 23:14:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 269 transitions. [2023-11-24 23:14:24,692 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 269 transitions. Word has length 191 [2023-11-24 23:14:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:24,693 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 269 transitions. [2023-11-24 23:14:24,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 269 transitions. [2023-11-24 23:14:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-24 23:14:24,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:24,697 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:24,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-24 23:14:24,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:25,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:25,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:25,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1854058164, now seen corresponding path program 1 times [2023-11-24 23:14:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:25,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641064249] [2023-11-24 23:14:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:25,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:25,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:25,104 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:25,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:14:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:25,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:14:25,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-24 23:14:26,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:26,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:26,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:26,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641064249] [2023-11-24 23:14:26,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641064249] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:26,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [226438699] [2023-11-24 23:14:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:26,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:26,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:14:26,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:14:26,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:14:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:26,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:14:26,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-24 23:14:27,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:14:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [226438699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:14:27,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:14:27,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 15 [2023-11-24 23:14:27,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887596759] [2023-11-24 23:14:27,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:14:27,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:14:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:27,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:14:27,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:14:27,023 INFO L87 Difference]: Start difference. First operand 169 states and 269 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:27,627 INFO L93 Difference]: Finished difference Result 485 states and 772 transitions. [2023-11-24 23:14:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:14:27,628 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), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-11-24 23:14:27,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:27,633 INFO L225 Difference]: With dead ends: 485 [2023-11-24 23:14:27,634 INFO L226 Difference]: Without dead ends: 317 [2023-11-24 23:14:27,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 556 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:14:27,637 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 110 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:27,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 305 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 23:14:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-24 23:14:27,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 187. [2023-11-24 23:14:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 124 states have internal predecessors, (177), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-24 23:14:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 297 transitions. [2023-11-24 23:14:27,680 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 297 transitions. Word has length 191 [2023-11-24 23:14:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:27,681 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 297 transitions. [2023-11-24 23:14:27,682 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), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 297 transitions. [2023-11-24 23:14:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-24 23:14:27,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:27,685 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:27,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:27,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:28,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:28,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:28,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1881378154, now seen corresponding path program 1 times [2023-11-24 23:14:28,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:28,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922873557] [2023-11-24 23:14:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:28,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:28,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:28,097 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:28,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-24 23:14:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:28,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:14:28,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-24 23:14:28,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:29,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:29,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922873557] [2023-11-24 23:14:29,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922873557] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [883951007] [2023-11-24 23:14:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:29,462 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:14:29,473 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:14:29,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 23:14:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:30,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:14:30,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-24 23:14:30,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:14:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [883951007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:14:30,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:14:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2023-11-24 23:14:30,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923505474] [2023-11-24 23:14:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:14:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:14:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:14:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:14:30,753 INFO L87 Difference]: Start difference. First operand 187 states and 297 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:31,591 INFO L93 Difference]: Finished difference Result 476 states and 756 transitions. [2023-11-24 23:14:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:14:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 192 [2023-11-24 23:14:31,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:31,595 INFO L225 Difference]: With dead ends: 476 [2023-11-24 23:14:31,595 INFO L226 Difference]: Without dead ends: 290 [2023-11-24 23:14:31,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 559 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:14:31,597 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 76 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:31,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 270 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:14:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-24 23:14:31,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2023-11-24 23:14:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 194 states have (on average 1.422680412371134) internal successors, (276), 194 states have internal predecessors, (276), 90 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-24 23:14:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 456 transitions. [2023-11-24 23:14:31,637 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 456 transitions. Word has length 192 [2023-11-24 23:14:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:31,638 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 456 transitions. [2023-11-24 23:14:31,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 456 transitions. [2023-11-24 23:14:31,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-24 23:14:31,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:31,651 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:31,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 [2023-11-24 23:14:31,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-24 23:14:32,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:32,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:32,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash 825241240, now seen corresponding path program 1 times [2023-11-24 23:14:32,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:32,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356927286] [2023-11-24 23:14:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:32,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:32,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:32,063 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:32,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 [2023-11-24 23:14:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:32,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:14:32,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-24 23:14:32,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:33,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:33,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356927286] [2023-11-24 23:14:33,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356927286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:33,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1171736075] [2023-11-24 23:14:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:33,317 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:33,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:14:33,318 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:14:33,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-24 23:14:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:34,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:14:34,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-24 23:14:35,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:14:35,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1171736075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:14:35,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-24 23:14:35,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 16 [2023-11-24 23:14:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664122521] [2023-11-24 23:14:35,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:14:35,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:14:35,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:14:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-24 23:14:35,237 INFO L87 Difference]: Start difference. First operand 288 states and 456 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:36,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:36,564 INFO L93 Difference]: Finished difference Result 1039 states and 1642 transitions. [2023-11-24 23:14:36,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 23:14:36,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 192 [2023-11-24 23:14:36,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:36,572 INFO L225 Difference]: With dead ends: 1039 [2023-11-24 23:14:36,572 INFO L226 Difference]: Without dead ends: 752 [2023-11-24 23:14:36,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-11-24 23:14:36,574 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 255 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:36,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 613 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 23:14:36,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-11-24 23:14:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 746. [2023-11-24 23:14:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 497 states have (on average 1.3983903420523138) internal successors, (695), 497 states have internal predecessors, (695), 240 states have call successors, (240), 8 states have call predecessors, (240), 8 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2023-11-24 23:14:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1175 transitions. [2023-11-24 23:14:36,663 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1175 transitions. Word has length 192 [2023-11-24 23:14:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:36,664 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1175 transitions. [2023-11-24 23:14:36,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-24 23:14:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1175 transitions. [2023-11-24 23:14:36,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-24 23:14:36,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:36,668 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:36,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 [2023-11-24 23:14:36,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:37,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:37,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:37,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:37,082 INFO L85 PathProgramCache]: Analyzing trace with hash 827088282, now seen corresponding path program 1 times [2023-11-24 23:14:37,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:37,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258315383] [2023-11-24 23:14:37,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:37,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:37,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:37,084 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:37,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 (12)] Waiting until timeout for monitored process [2023-11-24 23:14:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:37,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:14:37,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-24 23:14:38,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:38,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258315383] [2023-11-24 23:14:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258315383] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1723081111] [2023-11-24 23:14:38,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:38,594 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:38,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:14:38,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:14:38,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-24 23:14:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:39,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 23:14:39,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-24 23:14:40,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1723081111] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529253538] [2023-11-24 23:14:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:40,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:40,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:40,968 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:14:40,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-24 23:14:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:41,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 23:14:41,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-24 23:14:41,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-24 23:14:42,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529253538] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:14:42,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-24 23:14:42,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12, 9, 12, 9] total 17 [2023-11-24 23:14:42,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660634516] [2023-11-24 23:14:42,372 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-24 23:14:42,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-24 23:14:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:42,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-24 23:14:42,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-24 23:14:42,383 INFO L87 Difference]: Start difference. First operand 746 states and 1175 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 5 states have call successors, (75), 5 states have call predecessors, (75), 10 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) [2023-11-24 23:14:44,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:14:44,288 INFO L93 Difference]: Finished difference Result 1601 states and 2420 transitions. [2023-11-24 23:14:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-24 23:14:44,289 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 5 states have call successors, (75), 5 states have call predecessors, (75), 10 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) Word has length 192 [2023-11-24 23:14:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:14:44,298 INFO L225 Difference]: With dead ends: 1601 [2023-11-24 23:14:44,298 INFO L226 Difference]: Without dead ends: 856 [2023-11-24 23:14:44,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 1130 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=481, Invalid=1241, Unknown=0, NotChecked=0, Total=1722 [2023-11-24 23:14:44,303 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 135 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:14:44,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 366 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 23:14:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-24 23:14:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 473. [2023-11-24 23:14:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 302 states have (on average 1.2549668874172186) internal successors, (379), 302 states have internal predecessors, (379), 150 states have call successors, (150), 20 states have call predecessors, (150), 20 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-11-24 23:14:44,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 679 transitions. [2023-11-24 23:14:44,412 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 679 transitions. Word has length 192 [2023-11-24 23:14:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:14:44,413 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 679 transitions. [2023-11-24 23:14:44,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 5 states have call successors, (75), 5 states have call predecessors, (75), 10 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) [2023-11-24 23:14:44,413 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 679 transitions. [2023-11-24 23:14:44,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-24 23:14:44,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:14:44,417 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:14:44,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:44,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 (12)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:44,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-24 23:14:45,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:45,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:14:45,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:14:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash -216447244, now seen corresponding path program 1 times [2023-11-24 23:14:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:14:45,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847341968] [2023-11-24 23:14:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:45,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:14:45,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:14:45,027 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:14:45,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/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 (15)] Waiting until timeout for monitored process [2023-11-24 23:14:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:45,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 23:14:45,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 396 proven. 225 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2023-11-24 23:14:46,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:47,254 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:14:47,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847341968] [2023-11-24 23:14:47,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847341968] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:14:47,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1532004594] [2023-11-24 23:14:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:47,254 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:14:47,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:14:47,256 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:14:47,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-24 23:14:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:48,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:14:48,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 87 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-11-24 23:14:48,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:50,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1532004594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:14:50,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434152828] [2023-11-24 23:14:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:14:50,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:14:50,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:14:50,797 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:14:50,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c00494e0-23b1-43da-9b89-41dcb5a3589a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-24 23:14:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:14:51,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:14:51,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:14:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 87 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-11-24 23:14:51,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:14:56,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434152828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:14:56,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:14:56,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 12 [2023-11-24 23:14:56,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523033416] [2023-11-24 23:14:56,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:14:56,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:14:56,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:14:56,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:14:56,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-24 23:14:56,025 INFO L87 Difference]: Start difference. First operand 473 states and 679 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 4 states have call successors, (55), 4 states have call predecessors, (55), 5 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56)