./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E --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 64bit --witnessprinter.graph.data.programhash 17392b794ea5e57dd08811f1c935d7cc0fa0c1509aa84d5ecae872c99757bce0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:14:53,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:14:53,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:14:53,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:14:53,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:14:53,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:14:53,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:14:53,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:14:53,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:14:53,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:14:53,507 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:14:53,507 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:14:53,507 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:14:53,508 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:14:53,508 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:14:53,509 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:14:53,510 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:14:53,510 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:14:53,510 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:14:53,510 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:14:53,510 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:14:53,510 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:14:53,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:14:53,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:14:53,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:14:53,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:14:53,512 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17392b794ea5e57dd08811f1c935d7cc0fa0c1509aa84d5ecae872c99757bce0 [2024-11-14 05:14:53,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:14:53,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:14:53,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:14:53,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:14:53,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:14:53,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-14 05:14:55,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:14:56,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:14:56,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2024-11-14 05:14:56,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/data/dd8b3b073/90a9a0066742468499d3bb9423305b5f/FLAGa031e85a5 [2024-11-14 05:14:56,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/data/dd8b3b073/90a9a0066742468499d3bb9423305b5f [2024-11-14 05:14:56,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:14:56,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:14:56,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:14:56,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:14:56,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:14:56,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:14:56" (1/1) ... [2024-11-14 05:14:56,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428ea9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:56, skipping insertion in model container [2024-11-14 05:14:56,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:14:56" (1/1) ... [2024-11-14 05:14:56,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:14:57,553 WARN L250 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_2b07994a-7c8c-4877-905f-c0ab3c3739c4/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2024-11-14 05:14:58,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:14:58,641 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:14:58,788 WARN L250 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_2b07994a-7c8c-4877-905f-c0ab3c3739c4/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2024-11-14 05:14:58,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [5544] [2024-11-14 05:14:58,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (138), "i" (12UL)); [5757-5758] [2024-11-14 05:14:58,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (165), "i" (12UL)); [5790-5791] [2024-11-14 05:14:58,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (398), "i" (12UL)); [6063-6064] [2024-11-14 05:14:58,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (399), "i" (12UL)); [6071-6072] [2024-11-14 05:14:58,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (436), "i" (12UL)); [6125-6126] [2024-11-14 05:14:58,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (437), "i" (12UL)); [6133-6134] [2024-11-14 05:14:59,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (1732), "i" (12UL)); [8040-8041] [2024-11-14 05:14:59,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (1877), "i" (12UL)); [8270-8271] [2024-11-14 05:14:59,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:14:59,397 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:14:59,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59 WrapperNode [2024-11-14 05:14:59,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:14:59,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:14:59,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:14:59,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:14:59,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:14:59,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:14:59,787 INFO L138 Inliner]: procedures = 211, calls = 2748, calls flagged for inlining = 96, calls inlined = 96, statements flattened = 7590 [2024-11-14 05:14:59,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:14:59,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:14:59,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:14:59,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:14:59,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:14:59,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:14:59,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:14:59,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:15:00,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:15:00,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:15:00,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:15:00,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:15:00,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:15:00,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:15:00,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:15:00,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:15:00,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (1/1) ... [2024-11-14 05:15:00,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:15:00,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:15:00,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:15:00,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:15:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2024-11-14 05:15:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2024-11-14 05:15:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-14 05:15:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-14 05:15:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 05:15:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:15:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 05:15:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 05:15:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ioctl [2024-11-14 05:15:00,290 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ioctl [2024-11-14 05:15:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2024-11-14 05:15:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2024-11-14 05:15:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2024-11-14 05:15:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2024-11-14 05:15:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 05:15:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 05:15:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-14 05:15:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-14 05:15:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_tx_fixup [2024-11-14 05:15:00,291 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_tx_fixup [2024-11-14 05:15:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:15:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:15:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:15:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:15:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2024-11-14 05:15:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2024-11-14 05:15:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_change_mtu [2024-11-14 05:15:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_change_mtu [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2024-11-14 05:15:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-14 05:15:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-14 05:15:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2024-11-14 05:15:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-14 05:15:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2024-11-14 05:15:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2024-11-14 05:15:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2024-11-14 05:15:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2024-11-14 05:15:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2024-11-14 05:15:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2024-11-14 05:15:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2024-11-14 05:15:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2024-11-14 05:15:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2024-11-14 05:15:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-14 05:15:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-14 05:15:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-14 05:15:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-14 05:15:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-14 05:15:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-14 05:15:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-14 05:15:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 05:15:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-14 05:15:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2024-11-14 05:15:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 05:15:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2024-11-14 05:15:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2024-11-14 05:15:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:15:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2024-11-14 05:15:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-14 05:15:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-14 05:15:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 05:15:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 05:15:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2024-11-14 05:15:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2024-11-14 05:15:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2024-11-14 05:15:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2024-11-14 05:15:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:15:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-14 05:15:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-14 05:15:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:15:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:15:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:15:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2024-11-14 05:15:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2024-11-14 05:15:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:15:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_status [2024-11-14 05:15:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_status [2024-11-14 05:15:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 05:15:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 05:15:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:15:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2024-11-14 05:15:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2024-11-14 05:15:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2024-11-14 05:15:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2024-11-14 05:15:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2024-11-14 05:15:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2024-11-14 05:15:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2024-11-14 05:15:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2024-11-14 05:15:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2024-11-14 05:15:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2024-11-14 05:15:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_manage_power [2024-11-14 05:15:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_manage_power [2024-11-14 05:15:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_fixup [2024-11-14 05:15:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_fixup [2024-11-14 05:15:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2024-11-14 05:15:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2024-11-14 05:15:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:15:00,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:15:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:15:01,481 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:15:01,484 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:15:01,904 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 05:15:18,095 INFO L? ?]: Removed 2173 outVars from TransFormulas that were not future-live. [2024-11-14 05:15:18,096 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:15:21,971 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:15:21,974 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:15:21,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:15:21 BoogieIcfgContainer [2024-11-14 05:15:21,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:15:21,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:15:21,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:15:21,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:15:21,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:14:56" (1/3) ... [2024-11-14 05:15:21,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b7ff0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:15:21, skipping insertion in model container [2024-11-14 05:15:21,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:14:59" (2/3) ... [2024-11-14 05:15:21,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b7ff0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:15:21, skipping insertion in model container [2024-11-14 05:15:21,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:15:21" (3/3) ... [2024-11-14 05:15:21,992 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2024-11-14 05:15:22,014 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:15:22,017 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i that has 69 procedures, 1428 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 05:15:22,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:15:22,193 INFO L333 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, 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;@31f1136d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:15:22,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:15:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 1427 states, 933 states have (on average 1.3879957127545552) internal successors, (1295), 949 states have internal predecessors, (1295), 425 states have call successors, (425), 68 states have call predecessors, (425), 67 states have return successors, (419), 419 states have call predecessors, (419), 419 states have call successors, (419) [2024-11-14 05:15:22,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 05:15:22,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:22,230 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:15:22,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:15:22,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:22,238 INFO L85 PathProgramCache]: Analyzing trace with hash -655382943, now seen corresponding path program 1 times [2024-11-14 05:15:22,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:22,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41499016] [2024-11-14 05:15:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:22,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:16:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-14 05:16:15,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:16:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41499016] [2024-11-14 05:16:15,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41499016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:16:15,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:16:15,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:16:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457525469] [2024-11-14 05:16:15,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:16:15,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:16:15,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:16:15,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:16:15,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:16:15,785 INFO L87 Difference]: Start difference. First operand has 1427 states, 933 states have (on average 1.3879957127545552) internal successors, (1295), 949 states have internal predecessors, (1295), 425 states have call successors, (425), 68 states have call predecessors, (425), 67 states have return successors, (419), 419 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-14 05:16:17,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:16:20,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:16:29,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:16:29,788 INFO L93 Difference]: Finished difference Result 4193 states and 6290 transitions. [2024-11-14 05:16:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:16:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-14 05:16:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:16:29,831 INFO L225 Difference]: With dead ends: 4193 [2024-11-14 05:16:29,832 INFO L226 Difference]: Without dead ends: 2761 [2024-11-14 05:16:29,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:16:29,854 INFO L432 NwaCegarLoop]: 1930 mSDtfsCounter, 2040 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:16:29,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 3843 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 425 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2024-11-14 05:16:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2024-11-14 05:16:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2758. [2024-11-14 05:16:30,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1815 states have (on average 1.3768595041322313) internal successors, (2499), 1826 states have internal predecessors, (2499), 810 states have call successors, (810), 133 states have call predecessors, (810), 132 states have return successors, (804), 804 states have call predecessors, (804), 804 states have call successors, (804) [2024-11-14 05:16:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 4113 transitions. [2024-11-14 05:16:30,192 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 4113 transitions. Word has length 87 [2024-11-14 05:16:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:16:30,194 INFO L471 AbstractCegarLoop]: Abstraction has 2758 states and 4113 transitions. [2024-11-14 05:16:30,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-14 05:16:30,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 4113 transitions. [2024-11-14 05:16:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 05:16:30,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:30,205 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:30,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:16:30,206 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:16:30,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:30,206 INFO L85 PathProgramCache]: Analyzing trace with hash 366593455, now seen corresponding path program 1 times [2024-11-14 05:16:30,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:16:30,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137807379] [2024-11-14 05:16:30,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:30,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-14 05:17:22,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137807379] [2024-11-14 05:17:22,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137807379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:17:22,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:17:22,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:17:22,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264030872] [2024-11-14 05:17:22,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:17:22,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:17:22,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:17:22,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:17:22,329 INFO L87 Difference]: Start difference. First operand 2758 states and 4113 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:17:24,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:17:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:29,237 INFO L93 Difference]: Finished difference Result 2760 states and 4114 transitions. [2024-11-14 05:17:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:17:29,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2024-11-14 05:17:29,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:29,264 INFO L225 Difference]: With dead ends: 2760 [2024-11-14 05:17:29,264 INFO L226 Difference]: Without dead ends: 2757 [2024-11-14 05:17:29,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:17:29,269 INFO L432 NwaCegarLoop]: 1890 mSDtfsCounter, 2059 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:29,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 1890 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-14 05:17:29,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2024-11-14 05:17:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2757. [2024-11-14 05:17:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 1815 states have (on average 1.3763085399449035) internal successors, (2498), 1825 states have internal predecessors, (2498), 809 states have call successors, (809), 133 states have call predecessors, (809), 132 states have return successors, (804), 804 states have call predecessors, (804), 804 states have call successors, (804) [2024-11-14 05:17:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 4111 transitions. [2024-11-14 05:17:29,494 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 4111 transitions. Word has length 96 [2024-11-14 05:17:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:29,494 INFO L471 AbstractCegarLoop]: Abstraction has 2757 states and 4111 transitions. [2024-11-14 05:17:29,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:17:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 4111 transitions. [2024-11-14 05:17:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-14 05:17:29,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:29,503 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:17:29,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:17:29,503 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:17:29,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:29,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1521292725, now seen corresponding path program 1 times [2024-11-14 05:17:29,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:29,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551985326] [2024-11-14 05:17:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:29,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:18:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-14 05:18:23,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:18:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551985326] [2024-11-14 05:18:23,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551985326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:18:23,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:18:23,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:18:23,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894670565] [2024-11-14 05:18:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:18:23,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:18:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:18:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:18:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:18:23,559 INFO L87 Difference]: Start difference. First operand 2757 states and 4111 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:18:25,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:18:29,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:18:31,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:18:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:18:31,905 INFO L93 Difference]: Finished difference Result 2759 states and 4112 transitions. [2024-11-14 05:18:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:18:31,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 97 [2024-11-14 05:18:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:18:31,927 INFO L225 Difference]: With dead ends: 2759 [2024-11-14 05:18:31,927 INFO L226 Difference]: Without dead ends: 2756 [2024-11-14 05:18:31,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:18:31,930 INFO L432 NwaCegarLoop]: 1888 mSDtfsCounter, 2056 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:18:31,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 1888 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 05:18:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2024-11-14 05:18:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2756. [2024-11-14 05:18:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 1815 states have (on average 1.3757575757575757) internal successors, (2497), 1824 states have internal predecessors, (2497), 808 states have call successors, (808), 133 states have call predecessors, (808), 132 states have return successors, (804), 804 states have call predecessors, (804), 804 states have call successors, (804) [2024-11-14 05:18:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 4109 transitions. [2024-11-14 05:18:32,117 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 4109 transitions. Word has length 97 [2024-11-14 05:18:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:18:32,117 INFO L471 AbstractCegarLoop]: Abstraction has 2756 states and 4109 transitions. [2024-11-14 05:18:32,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:18:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 4109 transitions. [2024-11-14 05:18:32,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 05:18:32,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:32,120 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:32,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:18:32,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:18:32,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:32,121 INFO L85 PathProgramCache]: Analyzing trace with hash 83782706, now seen corresponding path program 1 times [2024-11-14 05:18:32,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:18:32,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659955361] [2024-11-14 05:18:32,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:32,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-14 05:19:31,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:31,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659955361] [2024-11-14 05:19:31,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659955361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:31,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:31,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:19:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938661890] [2024-11-14 05:19:31,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:31,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:31,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:31,678 INFO L87 Difference]: Start difference. First operand 2756 states and 4109 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:19:33,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:19:37,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:19:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:38,757 INFO L93 Difference]: Finished difference Result 2758 states and 4110 transitions. [2024-11-14 05:19:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:38,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 98 [2024-11-14 05:19:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:38,777 INFO L225 Difference]: With dead ends: 2758 [2024-11-14 05:19:38,777 INFO L226 Difference]: Without dead ends: 2755 [2024-11-14 05:19:38,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:38,780 INFO L432 NwaCegarLoop]: 1886 mSDtfsCounter, 2053 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:38,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 1886 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-14 05:19:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2024-11-14 05:19:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2024-11-14 05:19:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 1815 states have (on average 1.375206611570248) internal successors, (2496), 1823 states have internal predecessors, (2496), 807 states have call successors, (807), 133 states have call predecessors, (807), 132 states have return successors, (804), 804 states have call predecessors, (804), 804 states have call successors, (804) [2024-11-14 05:19:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 4107 transitions. [2024-11-14 05:19:38,974 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 4107 transitions. Word has length 98 [2024-11-14 05:19:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:38,974 INFO L471 AbstractCegarLoop]: Abstraction has 2755 states and 4107 transitions. [2024-11-14 05:19:38,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:19:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 4107 transitions. [2024-11-14 05:19:38,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 05:19:38,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:38,977 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:38,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:19:38,978 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:19:38,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:38,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1928673858, now seen corresponding path program 1 times [2024-11-14 05:19:38,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:38,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559804029] [2024-11-14 05:19:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:38,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-14 05:20:32,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:32,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559804029] [2024-11-14 05:20:32,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559804029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:32,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:20:32,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:20:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823498430] [2024-11-14 05:20:32,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:32,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:20:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:20:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:20:32,014 INFO L87 Difference]: Start difference. First operand 2755 states and 4107 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 05:20:34,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:20:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:43,256 INFO L93 Difference]: Finished difference Result 7143 states and 10600 transitions. [2024-11-14 05:20:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:20:43,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2024-11-14 05:20:43,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:43,281 INFO L225 Difference]: With dead ends: 7143 [2024-11-14 05:20:43,281 INFO L226 Difference]: Without dead ends: 4415 [2024-11-14 05:20:43,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:20:43,295 INFO L432 NwaCegarLoop]: 1888 mSDtfsCounter, 1253 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:43,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 3695 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2024-11-14 05:20:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2024-11-14 05:20:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4405. [2024-11-14 05:20:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4405 states, 2904 states have (on average 1.3732782369146006) internal successors, (3988), 2914 states have internal predecessors, (3988), 1268 states have call successors, (1268), 233 states have call predecessors, (1268), 232 states have return successors, (1265), 1265 states have call predecessors, (1265), 1265 states have call successors, (1265) [2024-11-14 05:20:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4405 states to 4405 states and 6521 transitions. [2024-11-14 05:20:43,630 INFO L78 Accepts]: Start accepts. Automaton has 4405 states and 6521 transitions. Word has length 100 [2024-11-14 05:20:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:43,630 INFO L471 AbstractCegarLoop]: Abstraction has 4405 states and 6521 transitions. [2024-11-14 05:20:43,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 05:20:43,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4405 states and 6521 transitions. [2024-11-14 05:20:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-14 05:20:43,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:43,633 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:20:43,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:20:43,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:20:43,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:43,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1698481618, now seen corresponding path program 1 times [2024-11-14 05:20:43,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:43,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84488242] [2024-11-14 05:20:43,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:43,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-14 05:21:40,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:40,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84488242] [2024-11-14 05:21:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84488242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:40,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065300007] [2024-11-14 05:21:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:40,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:40,450 INFO L87 Difference]: Start difference. First operand 4405 states and 6521 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:21:42,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:21:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:47,401 INFO L93 Difference]: Finished difference Result 8774 states and 12996 transitions. [2024-11-14 05:21:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 99 [2024-11-14 05:21:47,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:47,428 INFO L225 Difference]: With dead ends: 8774 [2024-11-14 05:21:47,428 INFO L226 Difference]: Without dead ends: 4402 [2024-11-14 05:21:47,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:47,447 INFO L432 NwaCegarLoop]: 1882 mSDtfsCounter, 2048 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:47,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 1882 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-14 05:21:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2024-11-14 05:21:47,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 4401. [2024-11-14 05:21:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4401 states, 2901 states have (on average 1.3726301275422268) internal successors, (3982), 2910 states have internal predecessors, (3982), 1267 states have call successors, (1267), 233 states have call predecessors, (1267), 232 states have return successors, (1265), 1265 states have call predecessors, (1265), 1265 states have call successors, (1265) [2024-11-14 05:21:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4401 states to 4401 states and 6514 transitions. [2024-11-14 05:21:47,791 INFO L78 Accepts]: Start accepts. Automaton has 4401 states and 6514 transitions. Word has length 99 [2024-11-14 05:21:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:47,792 INFO L471 AbstractCegarLoop]: Abstraction has 4401 states and 6514 transitions. [2024-11-14 05:21:47,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:21:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4401 states and 6514 transitions. [2024-11-14 05:21:47,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 05:21:47,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:47,796 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:47,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:21:47,796 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:21:47,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:47,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1114095947, now seen corresponding path program 1 times [2024-11-14 05:21:47,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:47,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434315970] [2024-11-14 05:21:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:47,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-14 05:22:44,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434315970] [2024-11-14 05:22:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434315970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:44,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:22:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925009644] [2024-11-14 05:22:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:44,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:22:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:44,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:22:44,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:22:44,027 INFO L87 Difference]: Start difference. First operand 4401 states and 6514 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:22:46,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:22:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:50,925 INFO L93 Difference]: Finished difference Result 4403 states and 6515 transitions. [2024-11-14 05:22:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:22:50,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 100 [2024-11-14 05:22:50,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:50,949 INFO L225 Difference]: With dead ends: 4403 [2024-11-14 05:22:50,949 INFO L226 Difference]: Without dead ends: 4394 [2024-11-14 05:22:50,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:22:50,953 INFO L432 NwaCegarLoop]: 1882 mSDtfsCounter, 2045 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:50,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 1882 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-14 05:22:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2024-11-14 05:22:51,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 4394. [2024-11-14 05:22:51,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 2895 states have (on average 1.3716753022452504) internal successors, (3971), 2903 states have internal predecessors, (3971), 1266 states have call successors, (1266), 233 states have call predecessors, (1266), 232 states have return successors, (1265), 1265 states have call predecessors, (1265), 1265 states have call successors, (1265) [2024-11-14 05:22:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 6502 transitions. [2024-11-14 05:22:51,289 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 6502 transitions. Word has length 100 [2024-11-14 05:22:51,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:51,290 INFO L471 AbstractCegarLoop]: Abstraction has 4394 states and 6502 transitions. [2024-11-14 05:22:51,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:22:51,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 6502 transitions. [2024-11-14 05:22:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-14 05:22:51,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:51,299 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:51,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:22:51,299 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:22:51,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash 179499396, now seen corresponding path program 1 times [2024-11-14 05:22:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:51,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511920342] [2024-11-14 05:22:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2024-11-14 05:23:42,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:42,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511920342] [2024-11-14 05:23:42,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511920342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:42,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:42,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:23:42,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204017151] [2024-11-14 05:23:42,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:42,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:42,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:42,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:42,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:42,306 INFO L87 Difference]: Start difference. First operand 4394 states and 6502 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 05:23:44,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:23:46,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:23:50,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:23:53,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:23:59,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:24:01,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:24:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:02,006 INFO L93 Difference]: Finished difference Result 11315 states and 16769 transitions. [2024-11-14 05:24:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 164 [2024-11-14 05:24:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:02,042 INFO L225 Difference]: With dead ends: 11315 [2024-11-14 05:24:02,042 INFO L226 Difference]: Without dead ends: 6954 [2024-11-14 05:24:02,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:02,056 INFO L432 NwaCegarLoop]: 3004 mSDtfsCounter, 1957 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 4759 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:02,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 4759 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 591 Invalid, 2 Unknown, 0 Unchecked, 19.4s Time] [2024-11-14 05:24:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2024-11-14 05:24:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 6950. [2024-11-14 05:24:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6950 states, 4588 states have (on average 1.370095902353967) internal successors, (6286), 4602 states have internal predecessors, (6286), 1998 states have call successors, (1998), 364 states have call predecessors, (1998), 363 states have return successors, (1997), 1997 states have call predecessors, (1997), 1997 states have call successors, (1997) [2024-11-14 05:24:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6950 states to 6950 states and 10281 transitions. [2024-11-14 05:24:02,573 INFO L78 Accepts]: Start accepts. Automaton has 6950 states and 10281 transitions. Word has length 164 [2024-11-14 05:24:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:02,573 INFO L471 AbstractCegarLoop]: Abstraction has 6950 states and 10281 transitions. [2024-11-14 05:24:02,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 05:24:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 6950 states and 10281 transitions. [2024-11-14 05:24:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-14 05:24:02,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:02,582 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:02,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:24:02,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:02,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:02,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1933877943, now seen corresponding path program 1 times [2024-11-14 05:24:02,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:02,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401177531] [2024-11-14 05:24:02,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:02,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2024-11-14 05:24:55,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:55,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401177531] [2024-11-14 05:24:55,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401177531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:55,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424010933] [2024-11-14 05:24:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:55,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:55,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:55,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:55,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:25:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:48,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 5607 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:25:48,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-14 05:25:49,117 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:25:49,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424010933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:49,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:25:49,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-14 05:25:49,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669189702] [2024-11-14 05:25:49,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:49,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:25:49,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:49,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:25:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:25:49,120 INFO L87 Difference]: Start difference. First operand 6950 states and 10281 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-14 05:25:51,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:25:53,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:25:55,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:26:00,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:26:01,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:26:02,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:26:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:09,881 INFO L93 Difference]: Finished difference Result 13884 states and 20555 transitions. [2024-11-14 05:26:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:26:09,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 163 [2024-11-14 05:26:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:09,923 INFO L225 Difference]: With dead ends: 13884 [2024-11-14 05:26:09,924 INFO L226 Difference]: Without dead ends: 6956 [2024-11-14 05:26:09,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:26:09,955 INFO L432 NwaCegarLoop]: 1875 mSDtfsCounter, 0 mSDsluCounter, 3743 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:09,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5618 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 624 Invalid, 3 Unknown, 0 Unchecked, 20.4s Time] [2024-11-14 05:26:09,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2024-11-14 05:26:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6956. [2024-11-14 05:26:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 4594 states have (on average 1.369612538093165) internal successors, (6292), 4608 states have internal predecessors, (6292), 1998 states have call successors, (1998), 364 states have call predecessors, (1998), 363 states have return successors, (1997), 1997 states have call predecessors, (1997), 1997 states have call successors, (1997) [2024-11-14 05:26:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 10287 transitions. [2024-11-14 05:26:10,544 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 10287 transitions. Word has length 163 [2024-11-14 05:26:10,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:10,544 INFO L471 AbstractCegarLoop]: Abstraction has 6956 states and 10287 transitions. [2024-11-14 05:26:10,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-14 05:26:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 10287 transitions. [2024-11-14 05:26:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-14 05:26:10,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:10,552 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:10,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 05:26:10,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 05:26:10,756 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:10,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:10,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1647266884, now seen corresponding path program 1 times [2024-11-14 05:26:10,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:10,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158215173] [2024-11-14 05:26:10,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:10,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2024-11-14 05:27:05,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:05,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158215173] [2024-11-14 05:27:05,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158215173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:05,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736233364] [2024-11-14 05:27:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:05,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:05,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:05,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:05,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b07994a-7c8c-4877-905f-c0ab3c3739c4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process