./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91 --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 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:59:17,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:59:18,066 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-24 23:59:18,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:59:18,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:59:18,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:59:18,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:59:18,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:59:18,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:59:18,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:59:18,124 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:59:18,126 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:59:18,126 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:59:18,132 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:59:18,134 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:59:18,134 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:59:18,134 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:59:18,135 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:59:18,135 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:59:18,136 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:59:18,136 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:59:18,137 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:59:18,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:59:18,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:59:18,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:59:18,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:59:18,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:59:18,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:59:18,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:59:18,140 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:59:18,142 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:59:18,142 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:59:18,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:59:18,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:59:18,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:59:18,143 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:59:18,143 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:59:18,143 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:59:18,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:59:18,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:59:18,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:18,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:59:18,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:59:18,145 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:59:18,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:59:18,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:59:18,146 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:59:18,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:59:18,147 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_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2023-11-24 23:59:18,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:59:18,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:59:18,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:59:18,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:59:18,416 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:59:18,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2023-11-24 23:59:21,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:59:22,117 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:59:22,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2023-11-24 23:59:22,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data/e0097a2da/24f51afed6a148798f3d52d8bde4e864/FLAG0be39f7a1 [2023-11-24 23:59:22,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data/e0097a2da/24f51afed6a148798f3d52d8bde4e864 [2023-11-24 23:59:22,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:59:22,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:59:22,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:22,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:59:22,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:59:22,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:22" (1/1) ... [2023-11-24 23:59:22,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b9a528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:22, skipping insertion in model container [2023-11-24 23:59:22,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:22" (1/1) ... [2023-11-24 23:59:22,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:23,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:23,079 ERROR L324 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) [2023-11-24 23:59:23,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a7c7588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:23, skipping insertion in model container [2023-11-24 23:59:23,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:23,080 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 23:59:23,082 INFO L158 Benchmark]: Toolchain (without parser) took 900.05ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 80.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 23:59:23,083 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:59:23,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 896.57ms. Allocated memory is still 151.0MB. Free memory was 103.2MB in the beginning and 80.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 23:59:23,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 896.57ms. Allocated memory is still 151.0MB. Free memory was 103.2MB in the beginning and 80.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91 --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 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:59:25,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:59:25,740 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-24 23:59:25,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:59:25,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:59:25,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:59:25,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:59:25,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:59:25,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:59:25,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:59:25,816 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:59:25,816 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:59:25,816 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:59:25,818 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:59:25,818 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:59:25,819 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:59:25,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:59:25,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:59:25,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:59:25,822 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:59:25,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:59:25,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:59:25,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:59:25,824 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:59:25,824 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:59:25,824 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:59:25,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:59:25,825 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:59:25,826 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:59:25,826 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:59:25,828 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:59:25,828 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:59:25,828 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:59:25,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:59:25,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:59:25,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:59:25,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:59:25,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:25,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:59:25,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:59:25,831 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:59:25,831 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:59:25,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:59:25,831 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:59:25,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:59:25,832 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2023-11-24 23:59:26,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:59:26,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:59:26,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:59:26,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:59:26,303 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:59:26,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2023-11-24 23:59:29,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:59:29,790 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:59:29,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2023-11-24 23:59:29,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data/51d99e662/211bdab5e86b471f915d5347a4dd7573/FLAG8bf762f15 [2023-11-24 23:59:29,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/data/51d99e662/211bdab5e86b471f915d5347a4dd7573 [2023-11-24 23:59:29,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:59:29,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:59:29,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:29,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:59:29,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:59:29,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:29,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a66e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:29, skipping insertion in model container [2023-11-24 23:59:29,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:29" (1/1) ... [2023-11-24 23:59:29,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:30,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:30,507 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 23:59:30,521 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:30,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:30,711 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:59:30,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:30,941 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:59:30,949 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:59:30,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30 WrapperNode [2023-11-24 23:59:30,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:30,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:30,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:59:30,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:59:30,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,084 INFO L138 Inliner]: procedures = 180, calls = 441, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1585 [2023-11-24 23:59:31,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:31,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:59:31,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:59:31,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:59:31,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:59:31,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:59:31,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:59:31,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:59:31,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (1/1) ... [2023-11-24 23:59:31,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:31,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:59:31,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:59:31,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:59:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 23:59:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 23:59:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:59:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:59:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:59:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:59:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:59:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:59:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:59:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:59:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:59:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:59:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:59:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:59:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:59:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:59:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:59:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:59:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:59:31,741 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:59:31,744 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:59:31,785 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:59:39,580 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:39,920 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:39,920 INFO L309 CfgBuilder]: Removed 92 assume(true) statements. [2023-11-24 23:59:39,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:39 BoogieIcfgContainer [2023-11-24 23:59:39,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:39,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:39,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:39,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:39,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:59:29" (1/3) ... [2023-11-24 23:59:39,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec8b8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:39, skipping insertion in model container [2023-11-24 23:59:39,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:30" (2/3) ... [2023-11-24 23:59:39,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec8b8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:39, skipping insertion in model container [2023-11-24 23:59:39,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:39" (3/3) ... [2023-11-24 23:59:39,933 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-2.i [2023-11-24 23:59:39,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:39,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 833 error locations. [2023-11-24 23:59:40,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:40,042 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@44fdb36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:40,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 833 error locations. [2023-11-24 23:59:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 1507 states, 663 states have (on average 2.5279034690799396) internal successors, (1676), 1497 states have internal predecessors, (1676), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-24 23:59:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:59:40,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:40,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 23:59:40,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 23:59:40,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash 78318715, now seen corresponding path program 1 times [2023-11-24 23:59:40,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:40,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390979673] [2023-11-24 23:59:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:40,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:40,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:40,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:40,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:59:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:40,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:59:40,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:40,462 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 [2023-11-24 23:59:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:40,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:40,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:40,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390979673] [2023-11-24 23:59:40,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390979673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:40,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:40,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:59:40,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520619808] [2023-11-24 23:59:40,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:59:40,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:59:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:40,530 INFO L87 Difference]: Start difference. First operand has 1507 states, 663 states have (on average 2.5279034690799396) internal successors, (1676), 1497 states have internal predecessors, (1676), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:59:44,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:44,544 INFO L93 Difference]: Finished difference Result 1716 states and 1853 transitions. [2023-11-24 23:59:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:59:44,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-24 23:59:44,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:44,572 INFO L225 Difference]: With dead ends: 1716 [2023-11-24 23:59:44,573 INFO L226 Difference]: Without dead ends: 1715 [2023-11-24 23:59:44,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:44,578 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 1235 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:44,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1280 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-24 23:59:44,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-24 23:59:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1461. [2023-11-24 23:59:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 720 states have (on average 2.2069444444444444) internal successors, (1589), 1451 states have internal predecessors, (1589), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:59:44,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1613 transitions. [2023-11-24 23:59:44,712 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1613 transitions. Word has length 4 [2023-11-24 23:59:44,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:44,712 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 1613 transitions. [2023-11-24 23:59:44,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:59:44,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1613 transitions. [2023-11-24 23:59:44,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:59:44,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:44,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 23:59:44,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:44,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:44,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 23:59:44,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash 78318716, now seen corresponding path program 1 times [2023-11-24 23:59:44,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:44,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086032617] [2023-11-24 23:59:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:44,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:44,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:44,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:44,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:59:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:45,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:45,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:45,157 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 [2023-11-24 23:59:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:45,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:45,181 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:45,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086032617] [2023-11-24 23:59:45,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086032617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:45,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:45,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:59:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730690922] [2023-11-24 23:59:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:59:45,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:45,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:59:45,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:45,185 INFO L87 Difference]: Start difference. First operand 1461 states and 1613 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:59:51,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:51,260 INFO L93 Difference]: Finished difference Result 1930 states and 2133 transitions. [2023-11-24 23:59:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:59:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-24 23:59:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:51,275 INFO L225 Difference]: With dead ends: 1930 [2023-11-24 23:59:51,276 INFO L226 Difference]: Without dead ends: 1930 [2023-11-24 23:59:51,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:51,278 INFO L413 NwaCegarLoop]: 1283 mSDtfsCounter, 673 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:51,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1862 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-24 23:59:51,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2023-11-24 23:59:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1584. [2023-11-24 23:59:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 853 states have (on average 2.182883939038687) internal successors, (1862), 1574 states have internal predecessors, (1862), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:59:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1886 transitions. [2023-11-24 23:59:51,350 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1886 transitions. Word has length 4 [2023-11-24 23:59:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:51,351 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 1886 transitions. [2023-11-24 23:59:51,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:59:51,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1886 transitions. [2023-11-24 23:59:51,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:59:51,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:51,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 23:59:51,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:51,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:51,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 23:59:51,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:51,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1865395856, now seen corresponding path program 1 times [2023-11-24 23:59:51,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:51,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974772832] [2023-11-24 23:59:51,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:51,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:51,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:51,560 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:51,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:59:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:51,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:59:51,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:51,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:51,763 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:51,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974772832] [2023-11-24 23:59:51,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974772832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:51,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:51,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:59:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825219170] [2023-11-24 23:59:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:51,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:59:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:59:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:51,767 INFO L87 Difference]: Start difference. First operand 1584 states and 1886 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-24 23:59:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:54,605 INFO L93 Difference]: Finished difference Result 2969 states and 3562 transitions. [2023-11-24 23:59:54,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:59:54,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-24 23:59:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:54,624 INFO L225 Difference]: With dead ends: 2969 [2023-11-24 23:59:54,624 INFO L226 Difference]: Without dead ends: 2969 [2023-11-24 23:59:54,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:54,628 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1243 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:54,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2841 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-24 23:59:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2023-11-24 23:59:54,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1586. [2023-11-24 23:59:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 855 states have (on average 2.1801169590643275) internal successors, (1864), 1576 states have internal predecessors, (1864), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:59:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1888 transitions. [2023-11-24 23:59:54,681 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1888 transitions. Word has length 5 [2023-11-24 23:59:54,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:54,682 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 1888 transitions. [2023-11-24 23:59:54,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-24 23:59:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1888 transitions. [2023-11-24 23:59:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:59:54,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:54,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:54,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:54,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:54,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 23:59:54,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:54,886 INFO L85 PathProgramCache]: Analyzing trace with hash -599452795, now seen corresponding path program 1 times [2023-11-24 23:59:54,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:54,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688895044] [2023-11-24 23:59:54,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:54,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:54,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:54,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:54,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 23:59:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:55,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:59:55,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:55,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:55,093 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:55,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688895044] [2023-11-24 23:59:55,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688895044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:55,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:55,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:59:55,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362284803] [2023-11-24 23:59:55,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:55,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:59:55,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:55,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:59:55,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:55,096 INFO L87 Difference]: Start difference. First operand 1586 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-24 23:59:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:56,569 INFO L93 Difference]: Finished difference Result 1547 states and 1848 transitions. [2023-11-24 23:59:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:59:56,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-24 23:59:56,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:56,583 INFO L225 Difference]: With dead ends: 1547 [2023-11-24 23:59:56,583 INFO L226 Difference]: Without dead ends: 1547 [2023-11-24 23:59:56,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:59:56,585 INFO L413 NwaCegarLoop]: 1268 mSDtfsCounter, 70 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:56,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2487 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:59:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-24 23:59:56,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2023-11-24 23:59:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 840 states have (on average 2.1714285714285713) internal successors, (1824), 1537 states have internal predecessors, (1824), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:59:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 1848 transitions. [2023-11-24 23:59:56,625 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 1848 transitions. Word has length 10 [2023-11-24 23:59:56,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:56,625 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 1848 transitions. [2023-11-24 23:59:56,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-24 23:59:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 1848 transitions. [2023-11-24 23:59:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:59:56,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:56,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:56,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-24 23:59:56,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:56,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 23:59:56,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:56,830 INFO L85 PathProgramCache]: Analyzing trace with hash -548522209, now seen corresponding path program 1 times [2023-11-24 23:59:56,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:56,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101241765] [2023-11-24 23:59:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:56,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:56,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:56,833 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:56,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:59:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:57,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:59:57,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:57,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:57,100 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:57,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101241765] [2023-11-24 23:59:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101241765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:57,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:57,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:59:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164266861] [2023-11-24 23:59:57,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:57,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:59:57,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:57,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:59:57,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:59:57,107 INFO L87 Difference]: Start difference. First operand 1547 states and 1848 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-24 23:59:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:59,156 INFO L93 Difference]: Finished difference Result 1533 states and 1827 transitions. [2023-11-24 23:59:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:59:59,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2023-11-24 23:59:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:59,169 INFO L225 Difference]: With dead ends: 1533 [2023-11-24 23:59:59,169 INFO L226 Difference]: Without dead ends: 1533 [2023-11-24 23:59:59,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:59,170 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 58 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:59,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3687 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 23:59:59,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-11-24 23:59:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1532. [2023-11-24 23:59:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 839 states have (on average 2.1477949940405243) internal successors, (1802), 1522 states have internal predecessors, (1802), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-24 23:59:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1826 transitions. [2023-11-24 23:59:59,206 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1826 transitions. Word has length 12 [2023-11-24 23:59:59,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:59,207 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1826 transitions. [2023-11-24 23:59:59,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-24 23:59:59,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1826 transitions. [2023-11-24 23:59:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:59:59,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:59,208 INFO L195 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] [2023-11-24 23:59:59,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:59,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:59,414 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-24 23:59:59,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:59,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1536799155, now seen corresponding path program 1 times [2023-11-24 23:59:59,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:59,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258095046] [2023-11-24 23:59:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:59,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:59,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:59,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 23:59:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:59,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:59,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:59,622 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 [2023-11-24 23:59:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:59,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:59,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:59,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258095046] [2023-11-24 23:59:59,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258095046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:59,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:59,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:59:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361029771] [2023-11-24 23:59:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:59,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:59:59,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:59:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:59:59,713 INFO L87 Difference]: Start difference. First operand 1532 states and 1826 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-25 00:00:04,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:00:04,701 INFO L93 Difference]: Finished difference Result 1783 states and 2062 transitions. [2023-11-25 00:00:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:00:04,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-11-25 00:00:04,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:00:04,713 INFO L225 Difference]: With dead ends: 1783 [2023-11-25 00:00:04,713 INFO L226 Difference]: Without dead ends: 1783 [2023-11-25 00:00:04,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:00:04,714 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1170 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:00:04,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1604 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-25 00:00:04,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2023-11-25 00:00:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1528. [2023-11-25 00:00:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 839 states have (on average 2.143027413587604) internal successors, (1798), 1518 states have internal predecessors, (1798), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-25 00:00:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1822 transitions. [2023-11-25 00:00:04,752 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1822 transitions. Word has length 26 [2023-11-25 00:00:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:00:04,752 INFO L495 AbstractCegarLoop]: Abstraction has 1528 states and 1822 transitions. [2023-11-25 00:00:04,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-25 00:00:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1822 transitions. [2023-11-25 00:00:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-25 00:00:04,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:00:04,754 INFO L195 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] [2023-11-25 00:00:04,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-25 00:00:04,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:00:04,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-25 00:00:04,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:00:04,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1536799154, now seen corresponding path program 1 times [2023-11-25 00:00:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:00:04,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554299712] [2023-11-25 00:00:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:00:04,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:00:04,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:00:04,960 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:00:04,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96314b3e-2399-4e4d-81c1-4a1d38c7e333/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-25 00:00:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:00:05,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-25 00:00:05,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:00:05,180 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 [2023-11-25 00:00:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:00:05,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:00:05,474 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:00:05,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554299712] [2023-11-25 00:00:05,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554299712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:00:05,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:00:05,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:00:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998568814] [2023-11-25 00:00:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:00:05,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:00:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:00:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:00:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:00:05,476 INFO L87 Difference]: Start difference. First operand 1528 states and 1822 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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)