./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:24:39,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:24:39,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 01:24:39,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:24:39,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:24:39,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:24:39,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:24:39,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:24:39,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:24:39,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:24:39,662 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:24:39,663 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:24:39,663 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:24:39,664 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:24:39,666 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:24:39,667 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:24:39,668 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:24:39,668 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:24:39,669 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:24:39,669 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:24:39,671 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:24:39,677 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:24:39,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:24:39,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:24:39,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:24:39,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:24:39,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:24:39,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:24:39,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:24:39,681 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:24:39,682 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:24:39,683 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 01:24:39,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:24:39,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:24:39,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:24:39,685 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:24:39,686 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:24:39,686 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:24:39,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:24:39,687 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:24:39,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:24:39,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:24:39,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:24:39,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:24:39,690 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:24:39,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:24:39,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:24:39,691 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:24:39,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:24:39,692 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd [2024-11-09 01:24:40,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:24:40,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:24:40,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:24:40,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:24:40,085 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:24:40,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i Unable to find full path for "g++" [2024-11-09 01:24:42,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:24:43,133 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:24:43,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2024-11-09 01:24:43,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data/072327f17/37e937342ccf4c0eb969268d9b83a002/FLAGe66e307c7 [2024-11-09 01:24:43,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data/072327f17/37e937342ccf4c0eb969268d9b83a002 [2024-11-09 01:24:43,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:24:43,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:24:43,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:24:43,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:24:43,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:24:43,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:24:43" (1/1) ... [2024-11-09 01:24:43,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a8bc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:43, skipping insertion in model container [2024-11-09 01:24:43,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:24:43" (1/1) ... [2024-11-09 01:24:43,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:24:43,967 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,014 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,025 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,035 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,052 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,134 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,141 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,147 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,160 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,184 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,190 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,198 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,199 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,204 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,212 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:44,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:24:44,251 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-09 01:24:44,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e557360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:44, skipping insertion in model container [2024-11-09 01:24:44,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:24:44,254 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 01:24:44,256 INFO L158 Benchmark]: Toolchain (without parser) took 1055.54ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 96.5MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 01:24:44,257 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:24:44,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1050.66ms. Allocated memory is still 159.4MB. Free memory was 121.2MB in the beginning and 96.5MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 01:24:44,261 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1050.66ms. Allocated memory is still 159.4MB. Free memory was 121.2MB in the beginning and 96.5MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:24:47,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:24:47,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 01:24:47,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:24:47,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:24:47,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:24:47,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:24:47,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:24:47,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:24:47,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:24:47,244 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:24:47,244 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:24:47,245 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:24:47,246 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:24:47,248 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:24:47,249 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:24:47,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:24:47,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:24:47,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:24:47,251 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:24:47,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:24:47,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:24:47,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:24:47,257 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:24:47,257 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:24:47,258 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 01:24:47,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:24:47,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:24:47,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:24:47,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:24:47,259 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:24:47,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:24:47,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:24:47,262 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:24:47,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:24:47,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:24:47,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:24:47,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:24:47,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:24:47,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:24:47,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:24:47,267 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:24:47,267 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:24:47,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:24:47,267 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:24:47,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd [2024-11-09 01:24:47,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:24:47,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:24:47,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:24:47,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:24:47,879 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:24:47,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i Unable to find full path for "g++" [2024-11-09 01:24:50,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:24:50,912 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:24:50,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2024-11-09 01:24:50,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data/a4926e88a/eb55d5a26beb47b7bc93c443b0690a04/FLAGae3825b95 [2024-11-09 01:24:50,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/data/a4926e88a/eb55d5a26beb47b7bc93c443b0690a04 [2024-11-09 01:24:50,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:24:50,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:24:50,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:24:50,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:24:50,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:24:51,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:24:50" (1/1) ... [2024-11-09 01:24:51,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d90ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:51, skipping insertion in model container [2024-11-09 01:24:51,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:24:50" (1/1) ... [2024-11-09 01:24:51,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:24:51,838 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:51,916 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:51,927 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:51,941 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:51,959 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,044 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,057 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,072 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,098 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,104 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,107 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,111 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,116 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,119 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,125 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:24:52,159 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 01:24:52,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:24:52,220 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,281 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,291 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,298 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,306 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,358 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,360 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,363 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,368 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,376 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,377 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,379 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,380 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,381 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,382 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,386 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:24:52,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:24:52,395 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:24:52,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:24:52,596 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:24:52,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52 WrapperNode [2024-11-09 01:24:52,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:24:52,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:24:52,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:24:52,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:24:52,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,776 INFO L138 Inliner]: procedures = 179, calls = 387, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1312 [2024-11-09 01:24:52,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:24:52,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:24:52,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:24:52,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:24:52,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:52,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:24:52,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:24:52,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:24:52,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:24:52,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (1/1) ... [2024-11-09 01:24:53,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:24:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:24:53,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:24:53,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:24:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 01:24:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 01:24:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:24:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:24:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:24:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:24:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:24:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:24:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:24:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:24:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:24:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 01:24:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:24:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:24:53,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:24:53,504 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:24:53,507 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:24:53,512 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 01:25:01,407 INFO L? ?]: Removed 1552 outVars from TransFormulas that were not future-live. [2024-11-09 01:25:01,408 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:25:01,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:25:01,484 INFO L316 CfgBuilder]: Removed 62 assume(true) statements. [2024-11-09 01:25:01,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:25:01 BoogieIcfgContainer [2024-11-09 01:25:01,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:25:01,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:25:01,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:25:01,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:25:01,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:24:50" (1/3) ... [2024-11-09 01:25:01,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe3dc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:25:01, skipping insertion in model container [2024-11-09 01:25:01,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:24:52" (2/3) ... [2024-11-09 01:25:01,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe3dc90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:25:01, skipping insertion in model container [2024-11-09 01:25:01,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:25:01" (3/3) ... [2024-11-09 01:25:01,503 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-2.i [2024-11-09 01:25:01,529 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:25:01,530 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-11-09 01:25:01,643 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:25:01,652 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=None, 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;@163e5bb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:25:01,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-11-09 01:25:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 1457 states, 711 states have (on average 2.230661040787623) internal successors, (1586), 1448 states have internal predecessors, (1586), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:25:01,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:01,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:25:01,681 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:01,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:01,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1155791597, now seen corresponding path program 1 times [2024-11-09 01:25:01,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:01,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330745140] [2024-11-09 01:25:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:01,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:01,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:01,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 01:25:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:01,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:25:01,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:01,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:01,967 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:01,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330745140] [2024-11-09 01:25:01,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330745140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:01,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:01,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:25:01,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937378832] [2024-11-09 01:25:01,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:01,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:25:01,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:25:02,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:25:02,023 INFO L87 Difference]: Start difference. First operand has 1457 states, 711 states have (on average 2.230661040787623) internal successors, (1586), 1448 states have internal predecessors, (1586), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:02,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:02,137 INFO L93 Difference]: Finished difference Result 1438 states and 1528 transitions. [2024-11-09 01:25:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:25:02,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:25:02,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:02,184 INFO L225 Difference]: With dead ends: 1438 [2024-11-09 01:25:02,184 INFO L226 Difference]: Without dead ends: 1436 [2024-11-09 01:25:02,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:25:02,194 INFO L432 NwaCegarLoop]: 1528 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:02,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:25:02,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-09 01:25:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2024-11-09 01:25:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 701 states have (on average 2.131241084165478) internal successors, (1494), 1427 states have internal predecessors, (1494), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:02,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1526 transitions. [2024-11-09 01:25:02,329 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1526 transitions. Word has length 6 [2024-11-09 01:25:02,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:02,329 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 1526 transitions. [2024-11-09 01:25:02,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1526 transitions. [2024-11-09 01:25:02,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:25:02,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:02,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:25:02,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 01:25:02,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:02,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:02,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1155791659, now seen corresponding path program 1 times [2024-11-09 01:25:02,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:02,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583343987] [2024-11-09 01:25:02,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:02,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:02,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:02,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:02,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 01:25:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:02,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:25:02,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:02,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 01:25:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:02,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:02,901 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:02,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583343987] [2024-11-09 01:25:02,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583343987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:02,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:02,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:25:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319851908] [2024-11-09 01:25:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:02,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:02,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:02,909 INFO L87 Difference]: Start difference. First operand 1436 states and 1526 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:06,614 INFO L93 Difference]: Finished difference Result 1345 states and 1437 transitions. [2024-11-09 01:25:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:06,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:25:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:06,622 INFO L225 Difference]: With dead ends: 1345 [2024-11-09 01:25:06,622 INFO L226 Difference]: Without dead ends: 1345 [2024-11-09 01:25:06,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:06,624 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 1052 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:06,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 940 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 01:25:06,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2024-11-09 01:25:06,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1342. [2024-11-09 01:25:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 701 states have (on average 1.9971469329529243) internal successors, (1400), 1333 states have internal predecessors, (1400), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:06,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1432 transitions. [2024-11-09 01:25:06,668 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1432 transitions. Word has length 6 [2024-11-09 01:25:06,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:06,669 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1432 transitions. [2024-11-09 01:25:06,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:06,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1432 transitions. [2024-11-09 01:25:06,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:25:06,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:06,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:25:06,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 01:25:06,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:06,871 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:06,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1155791660, now seen corresponding path program 1 times [2024-11-09 01:25:06,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:06,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327378295] [2024-11-09 01:25:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:06,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:06,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:06,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 01:25:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:07,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:25:07,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:07,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 01:25:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:07,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:07,127 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:07,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327378295] [2024-11-09 01:25:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327378295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:07,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:07,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:25:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660477560] [2024-11-09 01:25:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:07,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:07,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:07,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:07,133 INFO L87 Difference]: Start difference. First operand 1342 states and 1432 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:11,721 INFO L93 Difference]: Finished difference Result 1664 states and 1776 transitions. [2024-11-09 01:25:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:25:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:11,730 INFO L225 Difference]: With dead ends: 1664 [2024-11-09 01:25:11,731 INFO L226 Difference]: Without dead ends: 1664 [2024-11-09 01:25:11,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:11,733 INFO L432 NwaCegarLoop]: 1189 mSDtfsCounter, 528 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:11,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1783 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 01:25:11,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2024-11-09 01:25:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1510. [2024-11-09 01:25:11,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 879 states have (on average 1.9590443686006827) internal successors, (1722), 1501 states have internal predecessors, (1722), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 1754 transitions. [2024-11-09 01:25:11,789 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 1754 transitions. Word has length 6 [2024-11-09 01:25:11,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:11,789 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 1754 transitions. [2024-11-09 01:25:11,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 1754 transitions. [2024-11-09 01:25:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 01:25:11,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:11,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:11,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 01:25:11,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:11,995 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:11,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1184807191, now seen corresponding path program 1 times [2024-11-09 01:25:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:11,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997097875] [2024-11-09 01:25:11,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:11,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:11,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:12,002 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:12,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 01:25:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:12,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 01:25:12,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:12,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:12,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:12,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997097875] [2024-11-09 01:25:12,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997097875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:12,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:12,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:12,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163755788] [2024-11-09 01:25:12,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:12,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:12,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:12,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:12,174 INFO L87 Difference]: Start difference. First operand 1510 states and 1754 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:12,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:12,327 INFO L93 Difference]: Finished difference Result 2768 states and 3222 transitions. [2024-11-09 01:25:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 01:25:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:12,345 INFO L225 Difference]: With dead ends: 2768 [2024-11-09 01:25:12,345 INFO L226 Difference]: Without dead ends: 2768 [2024-11-09 01:25:12,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:12,349 INFO L432 NwaCegarLoop]: 1908 mSDtfsCounter, 1123 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:12,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 3323 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:25:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2024-11-09 01:25:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1512. [2024-11-09 01:25:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 881 states have (on average 1.956867196367764) internal successors, (1724), 1503 states have internal predecessors, (1724), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1756 transitions. [2024-11-09 01:25:12,421 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1756 transitions. Word has length 7 [2024-11-09 01:25:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:12,422 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 1756 transitions. [2024-11-09 01:25:12,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:12,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1756 transitions. [2024-11-09 01:25:12,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 01:25:12,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:12,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:12,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 01:25:12,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:12,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:12,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:12,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1247697054, now seen corresponding path program 1 times [2024-11-09 01:25:12,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:12,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662758929] [2024-11-09 01:25:12,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:12,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:12,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:12,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:12,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 01:25:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:12,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 01:25:12,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:12,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:12,892 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:12,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662758929] [2024-11-09 01:25:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662758929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:12,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:12,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:12,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988614705] [2024-11-09 01:25:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:12,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:12,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:12,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:12,896 INFO L87 Difference]: Start difference. First operand 1512 states and 1756 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:12,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:12,964 INFO L93 Difference]: Finished difference Result 1469 states and 1711 transitions. [2024-11-09 01:25:12,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:12,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 01:25:12,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:12,971 INFO L225 Difference]: With dead ends: 1469 [2024-11-09 01:25:12,972 INFO L226 Difference]: Without dead ends: 1469 [2024-11-09 01:25:12,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:12,973 INFO L432 NwaCegarLoop]: 1365 mSDtfsCounter, 71 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:12,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2667 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:25:12,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-11-09 01:25:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2024-11-09 01:25:13,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 862 states have (on average 1.9477958236658932) internal successors, (1679), 1460 states have internal predecessors, (1679), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1711 transitions. [2024-11-09 01:25:13,030 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1711 transitions. Word has length 13 [2024-11-09 01:25:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:13,030 INFO L471 AbstractCegarLoop]: Abstraction has 1469 states and 1711 transitions. [2024-11-09 01:25:13,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:13,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1711 transitions. [2024-11-09 01:25:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 01:25:13,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:13,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:13,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 01:25:13,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:13,236 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:13,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash 25685591, now seen corresponding path program 1 times [2024-11-09 01:25:13,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:13,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021203974] [2024-11-09 01:25:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:13,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:13,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:13,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:13,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 01:25:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:13,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:25:13,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:13,496 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:13,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:13,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021203974] [2024-11-09 01:25:13,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021203974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:13,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:13,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:25:13,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954877080] [2024-11-09 01:25:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:13,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:13,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:13,499 INFO L87 Difference]: Start difference. First operand 1469 states and 1711 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:13,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:13,658 INFO L93 Difference]: Finished difference Result 1447 states and 1682 transitions. [2024-11-09 01:25:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:25:13,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 01:25:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:13,667 INFO L225 Difference]: With dead ends: 1447 [2024-11-09 01:25:13,668 INFO L226 Difference]: Without dead ends: 1447 [2024-11-09 01:25:13,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:25:13,669 INFO L432 NwaCegarLoop]: 1320 mSDtfsCounter, 48 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:13,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3934 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:25:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-09 01:25:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1447. [2024-11-09 01:25:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 854 states have (on average 1.9320843091334894) internal successors, (1650), 1438 states have internal predecessors, (1650), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 1682 transitions. [2024-11-09 01:25:13,708 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 1682 transitions. Word has length 14 [2024-11-09 01:25:13,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:13,709 INFO L471 AbstractCegarLoop]: Abstraction has 1447 states and 1682 transitions. [2024-11-09 01:25:13,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 1682 transitions. [2024-11-09 01:25:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 01:25:13,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:13,713 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:13,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 01:25:13,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:13,914 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:13,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash 994337701, now seen corresponding path program 1 times [2024-11-09 01:25:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599547304] [2024-11-09 01:25:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:13,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:13,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 01:25:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:14,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:25:14,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:14,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 01:25:14,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:14,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:14,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:14,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599547304] [2024-11-09 01:25:14,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599547304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:14,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:14,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:14,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823650782] [2024-11-09 01:25:14,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:14,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:14,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:14,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:14,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:14,288 INFO L87 Difference]: Start difference. First operand 1447 states and 1682 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:19,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:19,014 INFO L93 Difference]: Finished difference Result 1447 states and 1682 transitions. [2024-11-09 01:25:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:25:19,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-09 01:25:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:19,021 INFO L225 Difference]: With dead ends: 1447 [2024-11-09 01:25:19,021 INFO L226 Difference]: Without dead ends: 1447 [2024-11-09 01:25:19,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:25:19,024 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 987 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:19,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1487 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-09 01:25:19,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-09 01:25:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1443. [2024-11-09 01:25:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 854 states have (on average 1.9274004683840749) internal successors, (1646), 1434 states have internal predecessors, (1646), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1678 transitions. [2024-11-09 01:25:19,062 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1678 transitions. Word has length 28 [2024-11-09 01:25:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:19,063 INFO L471 AbstractCegarLoop]: Abstraction has 1443 states and 1678 transitions. [2024-11-09 01:25:19,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1678 transitions. [2024-11-09 01:25:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 01:25:19,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:19,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:19,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 01:25:19,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:19,266 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:19,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash 994337702, now seen corresponding path program 1 times [2024-11-09 01:25:19,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:19,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394660126] [2024-11-09 01:25:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:19,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:19,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:19,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:19,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 01:25:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:19,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:25:19,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:19,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 01:25:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:19,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:19,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:19,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394660126] [2024-11-09 01:25:19,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394660126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:19,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:19,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:19,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512726140] [2024-11-09 01:25:19,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:19,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:19,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:19,832 INFO L87 Difference]: Start difference. First operand 1443 states and 1678 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:25,331 INFO L93 Difference]: Finished difference Result 1597 states and 1700 transitions. [2024-11-09 01:25:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:25:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-09 01:25:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:25,337 INFO L225 Difference]: With dead ends: 1597 [2024-11-09 01:25:25,337 INFO L226 Difference]: Without dead ends: 1597 [2024-11-09 01:25:25,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:25:25,338 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 459 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:25,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 2377 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 01:25:25,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2024-11-09 01:25:25,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1439. [2024-11-09 01:25:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 854 states have (on average 1.9227166276346603) internal successors, (1642), 1430 states have internal predecessors, (1642), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1674 transitions. [2024-11-09 01:25:25,373 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1674 transitions. Word has length 28 [2024-11-09 01:25:25,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:25,373 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1674 transitions. [2024-11-09 01:25:25,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:25,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1674 transitions. [2024-11-09 01:25:25,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 01:25:25,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:25,375 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:25,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 01:25:25,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:25,580 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:25,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:25,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2065339650, now seen corresponding path program 1 times [2024-11-09 01:25:25,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:25,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761325501] [2024-11-09 01:25:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:25,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:25,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:25,582 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:25,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 01:25:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:25,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:25:25,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:26,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:26,019 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761325501] [2024-11-09 01:25:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761325501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:25:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174005684] [2024-11-09 01:25:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:26,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:26,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:26,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:26,025 INFO L87 Difference]: Start difference. First operand 1439 states and 1674 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:26,133 INFO L93 Difference]: Finished difference Result 1433 states and 1664 transitions. [2024-11-09 01:25:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:25:26,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 01:25:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:26,138 INFO L225 Difference]: With dead ends: 1433 [2024-11-09 01:25:26,138 INFO L226 Difference]: Without dead ends: 1433 [2024-11-09 01:25:26,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:25:26,139 INFO L432 NwaCegarLoop]: 1314 mSDtfsCounter, 21 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:26,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3911 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:25:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2024-11-09 01:25:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1433. [2024-11-09 01:25:26,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 848 states have (on average 1.9245283018867925) internal successors, (1632), 1424 states have internal predecessors, (1632), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1664 transitions. [2024-11-09 01:25:26,174 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1664 transitions. Word has length 44 [2024-11-09 01:25:26,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:26,177 INFO L471 AbstractCegarLoop]: Abstraction has 1433 states and 1664 transitions. [2024-11-09 01:25:26,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1664 transitions. [2024-11-09 01:25:26,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 01:25:26,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:26,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:26,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 01:25:26,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:26,379 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:26,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:26,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1492340938, now seen corresponding path program 1 times [2024-11-09 01:25:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:26,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534556363] [2024-11-09 01:25:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:26,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:26,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:26,385 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:26,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 01:25:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:26,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:25:26,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:27,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:27,155 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:27,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534556363] [2024-11-09 01:25:27,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534556363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:27,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:27,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:27,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301607283] [2024-11-09 01:25:27,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:27,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:27,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:27,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:27,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:27,158 INFO L87 Difference]: Start difference. First operand 1433 states and 1664 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:27,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:27,495 INFO L93 Difference]: Finished difference Result 1651 states and 1912 transitions. [2024-11-09 01:25:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:27,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-09 01:25:27,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:27,503 INFO L225 Difference]: With dead ends: 1651 [2024-11-09 01:25:27,503 INFO L226 Difference]: Without dead ends: 1651 [2024-11-09 01:25:27,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:27,504 INFO L432 NwaCegarLoop]: 1401 mSDtfsCounter, 179 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:27,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 2665 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:25:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-09 01:25:27,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1480. [2024-11-09 01:25:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 895 states have (on average 1.8759776536312849) internal successors, (1679), 1471 states have internal predecessors, (1679), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1711 transitions. [2024-11-09 01:25:27,564 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1711 transitions. Word has length 52 [2024-11-09 01:25:27,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:27,565 INFO L471 AbstractCegarLoop]: Abstraction has 1480 states and 1711 transitions. [2024-11-09 01:25:27,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:27,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1711 transitions. [2024-11-09 01:25:27,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 01:25:27,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:27,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:27,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-09 01:25:27,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:27,768 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:27,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:27,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1014889515, now seen corresponding path program 1 times [2024-11-09 01:25:27,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:27,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940308184] [2024-11-09 01:25:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:27,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:27,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:27,774 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:27,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 01:25:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:28,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:25:28,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:28,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 01:25:28,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 01:25:29,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:25:29,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 01:25:29,068 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 01:25:29,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 01:25:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:29,095 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:29,095 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:29,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940308184] [2024-11-09 01:25:29,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940308184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:29,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:29,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:29,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873088189] [2024-11-09 01:25:29,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:29,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:29,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:29,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:29,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:29,098 INFO L87 Difference]: Start difference. First operand 1480 states and 1711 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:32,918 INFO L93 Difference]: Finished difference Result 1396 states and 1627 transitions. [2024-11-09 01:25:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:25:32,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-09 01:25:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:32,934 INFO L225 Difference]: With dead ends: 1396 [2024-11-09 01:25:32,934 INFO L226 Difference]: Without dead ends: 1396 [2024-11-09 01:25:32,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:32,938 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 890 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:32,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 852 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 01:25:32,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-09 01:25:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1218. [2024-11-09 01:25:32,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 717 states have (on average 1.7615062761506277) internal successors, (1263), 1209 states have internal predecessors, (1263), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1295 transitions. [2024-11-09 01:25:33,000 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1295 transitions. Word has length 55 [2024-11-09 01:25:33,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:33,000 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1295 transitions. [2024-11-09 01:25:33,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:33,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1295 transitions. [2024-11-09 01:25:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 01:25:33,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:33,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:33,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 01:25:33,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:33,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:33,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1692476316, now seen corresponding path program 1 times [2024-11-09 01:25:33,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:33,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438972756] [2024-11-09 01:25:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:33,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:33,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:33,209 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 01:25:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:33,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:25:33,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:33,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 01:25:33,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:25:33,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 01:25:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:33,629 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:33,629 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:33,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438972756] [2024-11-09 01:25:33,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438972756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:33,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:25:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376730271] [2024-11-09 01:25:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:33,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:25:33,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:25:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:25:33,632 INFO L87 Difference]: Start difference. First operand 1218 states and 1295 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:38,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:38,118 INFO L93 Difference]: Finished difference Result 1217 states and 1294 transitions. [2024-11-09 01:25:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:25:38,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-09 01:25:38,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:38,123 INFO L225 Difference]: With dead ends: 1217 [2024-11-09 01:25:38,123 INFO L226 Difference]: Without dead ends: 1217 [2024-11-09 01:25:38,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:25:38,124 INFO L432 NwaCegarLoop]: 1241 mSDtfsCounter, 2 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:38,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3186 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 01:25:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-09 01:25:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2024-11-09 01:25:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 717 states have (on average 1.7601115760111576) internal successors, (1262), 1208 states have internal predecessors, (1262), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1294 transitions. [2024-11-09 01:25:38,150 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1294 transitions. Word has length 60 [2024-11-09 01:25:38,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:38,151 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 1294 transitions. [2024-11-09 01:25:38,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:38,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1294 transitions. [2024-11-09 01:25:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 01:25:38,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:38,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:38,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-09 01:25:38,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:38,354 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:38,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:38,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1692476317, now seen corresponding path program 1 times [2024-11-09 01:25:38,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:38,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970821437] [2024-11-09 01:25:38,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:38,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:38,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:38,359 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:38,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 01:25:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:38,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:25:38,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:38,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 01:25:38,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-09 01:25:38,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:25:38,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 01:25:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:38,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:38,881 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:38,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970821437] [2024-11-09 01:25:38,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970821437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:38,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:38,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:25:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980031674] [2024-11-09 01:25:38,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:38,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:25:38,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:38,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:25:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:25:38,883 INFO L87 Difference]: Start difference. First operand 1217 states and 1294 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:44,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:44,828 INFO L93 Difference]: Finished difference Result 1216 states and 1293 transitions. [2024-11-09 01:25:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:25:44,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-09 01:25:44,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:44,834 INFO L225 Difference]: With dead ends: 1216 [2024-11-09 01:25:44,834 INFO L226 Difference]: Without dead ends: 1216 [2024-11-09 01:25:44,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:25:44,835 INFO L432 NwaCegarLoop]: 1241 mSDtfsCounter, 1 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:44,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3217 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 01:25:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-09 01:25:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2024-11-09 01:25:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 716 states have (on average 1.761173184357542) internal successors, (1261), 1207 states have internal predecessors, (1261), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 01:25:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1293 transitions. [2024-11-09 01:25:44,859 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1293 transitions. Word has length 60 [2024-11-09 01:25:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:44,859 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1293 transitions. [2024-11-09 01:25:44,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:25:44,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1293 transitions. [2024-11-09 01:25:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 01:25:44,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:44,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:44,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-09 01:25:45,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:45,062 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:45,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:45,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2131782691, now seen corresponding path program 1 times [2024-11-09 01:25:45,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:45,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786825267] [2024-11-09 01:25:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:45,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:45,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:45,065 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:45,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 01:25:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:45,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:25:45,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:45,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:45,460 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:45,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786825267] [2024-11-09 01:25:45,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786825267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:45,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:45,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:25:45,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944847748] [2024-11-09 01:25:45,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:45,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:25:45,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:45,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:25:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:45,463 INFO L87 Difference]: Start difference. First operand 1216 states and 1293 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:25:45,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:45,544 INFO L93 Difference]: Finished difference Result 1219 states and 1298 transitions. [2024-11-09 01:25:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:25:45,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-09 01:25:45,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:45,554 INFO L225 Difference]: With dead ends: 1219 [2024-11-09 01:25:45,556 INFO L226 Difference]: Without dead ends: 1219 [2024-11-09 01:25:45,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:25:45,557 INFO L432 NwaCegarLoop]: 1240 mSDtfsCounter, 0 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:45,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3712 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:25:45,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-09 01:25:45,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2024-11-09 01:25:45,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 718 states have (on average 1.7604456824512535) internal successors, (1264), 1210 states have internal predecessors, (1264), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-09 01:25:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1298 transitions. [2024-11-09 01:25:45,599 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1298 transitions. Word has length 68 [2024-11-09 01:25:45,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:45,600 INFO L471 AbstractCegarLoop]: Abstraction has 1219 states and 1298 transitions. [2024-11-09 01:25:45,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:25:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1298 transitions. [2024-11-09 01:25:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 01:25:45,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:45,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:45,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-09 01:25:45,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:45,802 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:45,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2057819004, now seen corresponding path program 1 times [2024-11-09 01:25:45,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:45,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357924959] [2024-11-09 01:25:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:45,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:45,808 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:45,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 01:25:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:46,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:25:46,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:46,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:46,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:46,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357924959] [2024-11-09 01:25:46,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357924959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:25:46,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [108194305] [2024-11-09 01:25:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:46,331 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:25:46,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:25:46,335 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:25:46,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 01:25:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:46,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:25:46,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:46,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:47,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [108194305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:25:47,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389872423] [2024-11-09 01:25:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:47,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:25:47,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:25:47,045 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:25:47,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 01:25:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:47,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:25:47,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:47,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:47,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389872423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:25:47,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:25:47,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2024-11-09 01:25:47,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536267268] [2024-11-09 01:25:47,481 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:25:47,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:25:47,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:25:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:25:47,483 INFO L87 Difference]: Start difference. First operand 1219 states and 1298 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:25:47,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:47,739 INFO L93 Difference]: Finished difference Result 1231 states and 1316 transitions. [2024-11-09 01:25:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:25:47,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-11-09 01:25:47,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:47,744 INFO L225 Difference]: With dead ends: 1231 [2024-11-09 01:25:47,744 INFO L226 Difference]: Without dead ends: 1231 [2024-11-09 01:25:47,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:25:47,745 INFO L432 NwaCegarLoop]: 1239 mSDtfsCounter, 8 mSDsluCounter, 3706 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4945 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:47,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4945 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:25:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-09 01:25:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1229. [2024-11-09 01:25:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 727 states have (on average 1.7592847317744154) internal successors, (1279), 1219 states have internal predecessors, (1279), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-09 01:25:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1313 transitions. [2024-11-09 01:25:47,767 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1313 transitions. Word has length 69 [2024-11-09 01:25:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:47,767 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1313 transitions. [2024-11-09 01:25:47,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:25:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1313 transitions. [2024-11-09 01:25:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 01:25:47,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:47,768 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:47,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-09 01:25:47,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 01:25:48,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 01:25:48,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:25:48,369 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:25:48,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:48,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1288831901, now seen corresponding path program 2 times [2024-11-09 01:25:48,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:48,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322967415] [2024-11-09 01:25:48,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:25:48,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:25:48,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:48,372 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:25:48,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 01:25:48,842 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:25:48,842 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:25:48,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:25:48,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:48,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:49,340 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:49,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322967415] [2024-11-09 01:25:49,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322967415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:25:49,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1061265167] [2024-11-09 01:25:49,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:25:49,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:25:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:25:49,345 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:25:49,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 01:25:50,768 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:25:50,768 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:25:50,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:25:50,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:50,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:25:50,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1061265167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:25:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895667793] [2024-11-09 01:25:50,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:25:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:25:50,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:25:50,956 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:25:50,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 01:26:07,054 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:26:07,054 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:26:07,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:26:07,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:07,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:26:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:07,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895667793] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:26:07,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:26:07,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 15 [2024-11-09 01:26:07,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948045965] [2024-11-09 01:26:07,234 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:26:07,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 01:26:07,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:26:07,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 01:26:07,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-09 01:26:07,236 INFO L87 Difference]: Start difference. First operand 1229 states and 1313 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:26:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:08,163 INFO L93 Difference]: Finished difference Result 1244 states and 1334 transitions. [2024-11-09 01:26:08,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 01:26:08,164 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2024-11-09 01:26:08,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:08,168 INFO L225 Difference]: With dead ends: 1244 [2024-11-09 01:26:08,169 INFO L226 Difference]: Without dead ends: 1238 [2024-11-09 01:26:08,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=357, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:26:08,170 INFO L432 NwaCegarLoop]: 1240 mSDtfsCounter, 9 mSDsluCounter, 6181 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:08,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7421 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:26:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-11-09 01:26:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1238. [2024-11-09 01:26:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 736 states have (on average 1.752717391304348) internal successors, (1290), 1228 states have internal predecessors, (1290), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-09 01:26:08,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1324 transitions. [2024-11-09 01:26:08,193 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1324 transitions. Word has length 72 [2024-11-09 01:26:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:08,194 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1324 transitions. [2024-11-09 01:26:08,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:26:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1324 transitions. [2024-11-09 01:26:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 01:26:08,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:08,195 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:08,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-09 01:26:08,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-09 01:26:08,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 01:26:08,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:08,796 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-09 01:26:08,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:08,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1874634557, now seen corresponding path program 3 times [2024-11-09 01:26:08,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:26:08,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587409400] [2024-11-09 01:26:08,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:26:08,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:26:08,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:26:08,801 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:26:08,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-09 01:26:09,563 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 01:26:09,563 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:26:09,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:26:09,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:09,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:26:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:10,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:26:10,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587409400] [2024-11-09 01:26:10,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587409400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:26:10,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [848642967] [2024-11-09 01:26:10,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:26:10,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:26:10,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:26:10,583 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:26:10,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-09 01:26:14,412 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 01:26:14,412 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:26:14,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:26:14,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:14,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:26:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:14,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [848642967] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:26:14,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248439899] [2024-11-09 01:26:14,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:26:14,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:14,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:14,725 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:14,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9d146-906d-43b4-8588-2d70d601981b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process