./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire --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 c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:40,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:40,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-23 21:23:40,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:40,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:41,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:41,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:41,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:41,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:41,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:41,040 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:41,041 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:41,042 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:41,043 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:23:41,044 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:41,044 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:41,045 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:23:41,045 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:23:41,046 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:41,046 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:23:41,046 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:23:41,047 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:23:41,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:23:41,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:23:41,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:41,049 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:23:41,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:41,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:23:41,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:41,051 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:23:41,052 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:23:41,053 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:23:41,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:41,053 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:23:41,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:23:41,054 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:23:41,054 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:41,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:41,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:41,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:41,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:41,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:41,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:41,056 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:23:41,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:23:41,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:41,057 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:41,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:41,057 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_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2023-11-23 21:23:41,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:41,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:41,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:41,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:41,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:41,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2023-11-23 21:23:44,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:45,048 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:45,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2023-11-23 21:23:45,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data/184c04fde/ef816f56841e4ce4873e162869ee0a93/FLAG54422f100 [2023-11-23 21:23:45,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data/184c04fde/ef816f56841e4ce4873e162869ee0a93 [2023-11-23 21:23:45,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:45,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:45,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:45,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:45,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:45,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13094495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45, skipping insertion in model container [2023-11-23 21:23:45,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:45,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:45,683 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) [2023-11-23 21:23:45,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24f59ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45, skipping insertion in model container [2023-11-23 21:23:45,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:45,685 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:23:45,687 INFO L158 Benchmark]: Toolchain (without parser) took 568.87ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 82.2MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:23:45,687 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 134.2MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:23:45,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.18ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 82.2MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:23:45,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 134.2MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.18ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 82.2MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3005]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire --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 c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:48,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:48,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-23 21:23:48,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:48,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:48,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:48,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:48,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:48,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:48,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:48,539 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:48,539 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:48,540 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:48,542 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:48,542 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:48,542 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:48,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:23:48,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:23:48,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:48,546 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:23:48,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:48,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:23:48,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:48,547 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:23:48,548 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:23:48,548 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:23:48,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:48,549 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:23:48,549 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:23:48,550 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:23:48,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:23:48,552 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:23:48,552 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:48,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:48,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:23:48,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:48,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:48,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:48,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:48,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:48,555 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:23:48,555 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:23:48,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:48,555 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:48,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:48,556 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_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2023-11-23 21:23:48,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:48,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:48,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:48,956 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:48,956 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:48,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2023-11-23 21:23:52,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:52,514 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:52,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2023-11-23 21:23:52,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data/b8f0bfe6c/6f8ebd1ffa7d4c67a2dff43f1957a1a7/FLAG9f474e337 [2023-11-23 21:23:52,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/data/b8f0bfe6c/6f8ebd1ffa7d4c67a2dff43f1957a1a7 [2023-11-23 21:23:52,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:52,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:52,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:52,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:52,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:52,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:52" (1/1) ... [2023-11-23 21:23:52,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b57ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:52, skipping insertion in model container [2023-11-23 21:23:52,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:52" (1/1) ... [2023-11-23 21:23:52,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:53,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:53,253 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 21:23:53,326 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:53,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:53,412 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:23:53,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:53,551 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:23:53,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53 WrapperNode [2023-11-23 21:23:53,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:53,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:53,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:23:53,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:23:53,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,643 INFO L138 Inliner]: procedures = 191, calls = 33, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 103 [2023-11-23 21:23:53,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:53,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:23:53,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:23:53,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:23:53,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:23:53,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:23:53,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:23:53,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:23:53,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (1/1) ... [2023-11-23 21:23:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:53,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:53,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:23:53,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:23:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:23:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:23:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:23:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:23:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:23:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:23:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:23:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-23 21:23:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-23 21:23:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:23:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:23:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 21:23:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:23:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:23:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:23:53,815 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:23:54,048 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:23:54,051 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:54,711 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:55,004 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:55,004 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:23:55,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:55 BoogieIcfgContainer [2023-11-23 21:23:55,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:55,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:55,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:55,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:55,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:23:52" (1/3) ... [2023-11-23 21:23:55,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866d5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:55, skipping insertion in model container [2023-11-23 21:23:55,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:53" (2/3) ... [2023-11-23 21:23:55,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866d5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:55, skipping insertion in model container [2023-11-23 21:23:55,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:55" (3/3) ... [2023-11-23 21:23:55,017 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2023-11-23 21:23:55,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:55,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-11-23 21:23:55,036 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:23:55,113 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:23:55,156 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 60 transitions, 124 flow [2023-11-23 21:23:55,206 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 317 states, 236 states have (on average 2.4279661016949152) internal successors, (573), 316 states have internal predecessors, (573), 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) [2023-11-23 21:23:55,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:55,231 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;@344a7783, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:55,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-23 21:23:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 236 states have (on average 2.4279661016949152) internal successors, (573), 316 states have internal predecessors, (573), 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) [2023-11-23 21:23:55,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 21:23:55,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:55,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 21:23:55,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:23:55,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:55,248 INFO L85 PathProgramCache]: Analyzing trace with hash 9963, now seen corresponding path program 1 times [2023-11-23 21:23:55,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:55,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566702326] [2023-11-23 21:23:55,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:55,263 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 [2023-11-23 21:23:55,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:55,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:23:55,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:55,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:23:55,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:55,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 21:23:55,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:23:55,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-23 21:23:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:55,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:55,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:55,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566702326] [2023-11-23 21:23:55,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566702326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:55,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:55,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:23:55,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965794421] [2023-11-23 21:23:55,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:55,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:55,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:55,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:55,575 INFO L87 Difference]: Start difference. First operand has 317 states, 236 states have (on average 2.4279661016949152) internal successors, (573), 316 states have internal predecessors, (573), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 21:23:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:55,880 INFO L93 Difference]: Finished difference Result 311 states and 567 transitions. [2023-11-23 21:23:55,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:55,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-23 21:23:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:55,897 INFO L225 Difference]: With dead ends: 311 [2023-11-23 21:23:55,897 INFO L226 Difference]: Without dead ends: 311 [2023-11-23 21:23:55,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:55,906 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:55,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 36 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:23:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-23 21:23:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-11-23 21:23:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 236 states have (on average 2.402542372881356) internal successors, (567), 310 states have internal predecessors, (567), 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) [2023-11-23 21:23:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 567 transitions. [2023-11-23 21:23:55,972 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 567 transitions. Word has length 2 [2023-11-23 21:23:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:55,973 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 567 transitions. [2023-11-23 21:23:55,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 21:23:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 567 transitions. [2023-11-23 21:23:55,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-23 21:23:55,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:55,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-23 21:23:55,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:56,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:56,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:23:56,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 9964, now seen corresponding path program 1 times [2023-11-23 21:23:56,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:56,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054161854] [2023-11-23 21:23:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:56,179 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 [2023-11-23 21:23:56,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:56,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:23:56,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:56,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:23:56,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:56,316 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 [2023-11-23 21:23:56,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:23:56,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-23 21:23:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:56,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:56,346 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054161854] [2023-11-23 21:23:56,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054161854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:56,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:56,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:23:56,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526397513] [2023-11-23 21:23:56,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:56,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:56,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:56,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:56,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:56,356 INFO L87 Difference]: Start difference. First operand 311 states and 567 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 21:23:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:56,625 INFO L93 Difference]: Finished difference Result 305 states and 561 transitions. [2023-11-23 21:23:56,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:56,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-23 21:23:56,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:56,630 INFO L225 Difference]: With dead ends: 305 [2023-11-23 21:23:56,630 INFO L226 Difference]: Without dead ends: 305 [2023-11-23 21:23:56,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:56,632 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:56,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 37 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:23:56,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-23 21:23:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2023-11-23 21:23:56,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 236 states have (on average 2.3771186440677967) internal successors, (561), 304 states have internal predecessors, (561), 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) [2023-11-23 21:23:56,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 561 transitions. [2023-11-23 21:23:56,674 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 561 transitions. Word has length 2 [2023-11-23 21:23:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 561 transitions. [2023-11-23 21:23:56,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-23 21:23:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 561 transitions. [2023-11-23 21:23:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:23:56,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:56,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:23:56,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:56,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:56,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:23:56,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:56,879 INFO L85 PathProgramCache]: Analyzing trace with hash 619548741, now seen corresponding path program 1 times [2023-11-23 21:23:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:56,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802001098] [2023-11-23 21:23:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:56,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:23:56,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:56,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:23:56,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:57,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:23:57,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:57,047 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 [2023-11-23 21:23:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:57,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:57,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:57,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802001098] [2023-11-23 21:23:57,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802001098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:57,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:57,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:23:57,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464614574] [2023-11-23 21:23:57,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:57,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:57,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:57,063 INFO L87 Difference]: Start difference. First operand 305 states and 561 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:57,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:57,340 INFO L93 Difference]: Finished difference Result 284 states and 510 transitions. [2023-11-23 21:23:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:57,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:23:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:57,343 INFO L225 Difference]: With dead ends: 284 [2023-11-23 21:23:57,343 INFO L226 Difference]: Without dead ends: 284 [2023-11-23 21:23:57,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:57,345 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:57,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 15 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:23:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-23 21:23:57,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 266. [2023-11-23 21:23:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 215 states have (on average 2.2651162790697676) internal successors, (487), 265 states have internal predecessors, (487), 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) [2023-11-23 21:23:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 487 transitions. [2023-11-23 21:23:57,381 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 487 transitions. Word has length 6 [2023-11-23 21:23:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:57,381 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 487 transitions. [2023-11-23 21:23:57,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 487 transitions. [2023-11-23 21:23:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:23:57,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:57,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:23:57,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:57,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:57,586 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:23:57,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash 619548742, now seen corresponding path program 1 times [2023-11-23 21:23:57,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:57,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210732662] [2023-11-23 21:23:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:57,588 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 [2023-11-23 21:23:57,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:57,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:23:57,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:57,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:23:57,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:57,785 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 [2023-11-23 21:23:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:57,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:57,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:57,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210732662] [2023-11-23 21:23:57,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210732662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:57,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:57,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:23:57,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32506717] [2023-11-23 21:23:57,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:57,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:57,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:57,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:57,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:57,816 INFO L87 Difference]: Start difference. First operand 266 states and 487 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:57,997 INFO L93 Difference]: Finished difference Result 222 states and 400 transitions. [2023-11-23 21:23:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:57,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:23:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:58,000 INFO L225 Difference]: With dead ends: 222 [2023-11-23 21:23:58,000 INFO L226 Difference]: Without dead ends: 222 [2023-11-23 21:23:58,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:58,002 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:58,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:23:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-23 21:23:58,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2023-11-23 21:23:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 189 states have (on average 2.1164021164021163) internal successors, (400), 221 states have internal predecessors, (400), 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) [2023-11-23 21:23:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 400 transitions. [2023-11-23 21:23:58,042 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 400 transitions. Word has length 6 [2023-11-23 21:23:58,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:58,042 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 400 transitions. [2023-11-23 21:23:58,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 400 transitions. [2023-11-23 21:23:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:23:58,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:58,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:58,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:23:58,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:58,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:23:58,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:58,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1502388908, now seen corresponding path program 1 times [2023-11-23 21:23:58,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:58,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608586074] [2023-11-23 21:23:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:58,246 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 [2023-11-23 21:23:58,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:58,248 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:23:58,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:58,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:23:58,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:58,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:23:58,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-23 21:23:58,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-23 21:23:58,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:23:58,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-23 21:23:58,850 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-23 21:23:58,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2023-11-23 21:23:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:59,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:59,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:59,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608586074] [2023-11-23 21:23:59,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608586074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:59,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:59,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:59,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753025506] [2023-11-23 21:23:59,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:59,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:23:59,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:59,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:23:59,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:23:59,027 INFO L87 Difference]: Start difference. First operand 222 states and 400 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-23 21:23:59,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:59,554 INFO L93 Difference]: Finished difference Result 221 states and 399 transitions. [2023-11-23 21:23:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:59,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-23 21:23:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:59,557 INFO L225 Difference]: With dead ends: 221 [2023-11-23 21:23:59,557 INFO L226 Difference]: Without dead ends: 221 [2023-11-23 21:23:59,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:23:59,558 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 88 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:59,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 30 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:23:59,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-23 21:23:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-11-23 21:23:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 189 states have (on average 2.111111111111111) internal successors, (399), 220 states have internal predecessors, (399), 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) [2023-11-23 21:23:59,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 399 transitions. [2023-11-23 21:23:59,568 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 399 transitions. Word has length 9 [2023-11-23 21:23:59,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:59,569 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 399 transitions. [2023-11-23 21:23:59,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-23 21:23:59,569 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 399 transitions. [2023-11-23 21:23:59,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:23:59,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:59,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:59,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:59,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:23:59,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:23:59,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1502388907, now seen corresponding path program 1 times [2023-11-23 21:23:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:59,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241778336] [2023-11-23 21:23:59,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:59,777 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 [2023-11-23 21:23:59,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:59,778 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:23:59,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:00,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:24:00,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:00,074 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2023-11-23 21:24:00,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2023-11-23 21:24:00,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:24:00,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2023-11-23 21:24:00,239 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-23 21:24:00,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-23 21:24:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:00,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:24:00,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:24:00,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241778336] [2023-11-23 21:24:00,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241778336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:00,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:00,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:24:00,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276192376] [2023-11-23 21:24:00,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:00,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:24:00,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:24:00,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:24:00,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:24:00,302 INFO L87 Difference]: Start difference. First operand 221 states and 399 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-23 21:24:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:00,681 INFO L93 Difference]: Finished difference Result 220 states and 398 transitions. [2023-11-23 21:24:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:00,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-23 21:24:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:00,684 INFO L225 Difference]: With dead ends: 220 [2023-11-23 21:24:00,684 INFO L226 Difference]: Without dead ends: 220 [2023-11-23 21:24:00,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:24:00,686 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:00,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 17 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:24:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-23 21:24:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-23 21:24:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 189 states have (on average 2.105820105820106) internal successors, (398), 219 states have internal predecessors, (398), 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) [2023-11-23 21:24:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 398 transitions. [2023-11-23 21:24:00,698 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 398 transitions. Word has length 9 [2023-11-23 21:24:00,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:00,699 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 398 transitions. [2023-11-23 21:24:00,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-23 21:24:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 398 transitions. [2023-11-23 21:24:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:24:00,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:00,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:00,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-23 21:24:00,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:00,905 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:24:00,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -185958999, now seen corresponding path program 1 times [2023-11-23 21:24:00,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:24:00,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867883914] [2023-11-23 21:24:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:00,907 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 [2023-11-23 21:24:00,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:24:00,908 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:24:00,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:01,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:24:01,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:01,165 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 [2023-11-23 21:24:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:01,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:24:01,172 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:24:01,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867883914] [2023-11-23 21:24:01,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867883914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:01,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:01,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:24:01,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96242219] [2023-11-23 21:24:01,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:01,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:01,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:24:01,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:01,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:01,175 INFO L87 Difference]: Start difference. First operand 220 states and 398 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2023-11-23 21:24:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:01,424 INFO L93 Difference]: Finished difference Result 214 states and 382 transitions. [2023-11-23 21:24:01,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:01,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 [2023-11-23 21:24:01,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:01,430 INFO L225 Difference]: With dead ends: 214 [2023-11-23 21:24:01,430 INFO L226 Difference]: Without dead ends: 214 [2023-11-23 21:24:01,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:01,431 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:01,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:24:01,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-23 21:24:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 208. [2023-11-23 21:24:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 181 states have (on average 2.088397790055249) internal successors, (378), 207 states have internal predecessors, (378), 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) [2023-11-23 21:24:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 378 transitions. [2023-11-23 21:24:01,441 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 378 transitions. Word has length 12 [2023-11-23 21:24:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:01,442 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 378 transitions. [2023-11-23 21:24:01,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2023-11-23 21:24:01,442 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 378 transitions. [2023-11-23 21:24:01,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:24:01,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:01,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:01,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:24:01,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:01,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:24:01,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:01,644 INFO L85 PathProgramCache]: Analyzing trace with hash -185958998, now seen corresponding path program 1 times [2023-11-23 21:24:01,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:24:01,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21266148] [2023-11-23 21:24:01,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:01,645 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 [2023-11-23 21:24:01,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:24:01,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:24:01,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-23 21:24:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:01,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:24:01,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:01,944 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 [2023-11-23 21:24:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:01,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:24:01,954 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:24:01,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21266148] [2023-11-23 21:24:01,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21266148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:01,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:01,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:24:01,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860372395] [2023-11-23 21:24:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:01,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:24:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:01,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:01,957 INFO L87 Difference]: Start difference. First operand 208 states and 378 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2023-11-23 21:24:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:02,150 INFO L93 Difference]: Finished difference Result 184 states and 326 transitions. [2023-11-23 21:24:02,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 [2023-11-23 21:24:02,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:02,152 INFO L225 Difference]: With dead ends: 184 [2023-11-23 21:24:02,152 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 21:24:02,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:02,153 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:02,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 25 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:24:02,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 21:24:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 21:24:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 165 states have (on average 1.9757575757575758) internal successors, (326), 183 states have internal predecessors, (326), 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) [2023-11-23 21:24:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 326 transitions. [2023-11-23 21:24:02,162 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 326 transitions. Word has length 12 [2023-11-23 21:24:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:02,162 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 326 transitions. [2023-11-23 21:24:02,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2023-11-23 21:24:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 326 transitions. [2023-11-23 21:24:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:24:02,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:02,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:02,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:24:02,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:02,376 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:24:02,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:02,377 INFO L85 PathProgramCache]: Analyzing trace with hash 594338519, now seen corresponding path program 1 times [2023-11-23 21:24:02,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:24:02,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439804612] [2023-11-23 21:24:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:02,377 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 [2023-11-23 21:24:02,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:24:02,378 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:24:02,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-23 21:24:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:02,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:24:02,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:02,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 21:24:02,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:24:02,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-23 21:24:02,802 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2023-11-23 21:24:02,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2023-11-23 21:24:02,860 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-23 21:24:02,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2023-11-23 21:24:03,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:03,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:24:03,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:24:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439804612] [2023-11-23 21:24:03,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439804612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:03,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:03,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:03,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834043559] [2023-11-23 21:24:03,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:03,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:24:03,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:24:03,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:24:03,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:24:03,045 INFO L87 Difference]: Start difference. First operand 184 states and 326 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-23 21:24:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:03,247 INFO L93 Difference]: Finished difference Result 171 states and 301 transitions. [2023-11-23 21:24:03,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:03,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-23 21:24:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:03,250 INFO L225 Difference]: With dead ends: 171 [2023-11-23 21:24:03,250 INFO L226 Difference]: Without dead ends: 171 [2023-11-23 21:24:03,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:24:03,251 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 53 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:03,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 10 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:24:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-23 21:24:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-23 21:24:03,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 155 states have (on average 1.9419354838709677) internal successors, (301), 170 states have internal predecessors, (301), 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) [2023-11-23 21:24:03,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 301 transitions. [2023-11-23 21:24:03,256 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 301 transitions. Word has length 15 [2023-11-23 21:24:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:03,257 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 301 transitions. [2023-11-23 21:24:03,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-23 21:24:03,257 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 301 transitions. [2023-11-23 21:24:03,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:24:03,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:03,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:03,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:24:03,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:03,464 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:24:03,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:03,465 INFO L85 PathProgramCache]: Analyzing trace with hash 594338520, now seen corresponding path program 1 times [2023-11-23 21:24:03,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:24:03,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104030750] [2023-11-23 21:24:03,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:03,466 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 [2023-11-23 21:24:03,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:24:03,467 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:24:03,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-23 21:24:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:03,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:24:03,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:03,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-23 21:24:03,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:24:03,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-23 21:24:03,861 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-23 21:24:03,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-11-23 21:24:03,867 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 [2023-11-23 21:24:03,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:24:03,981 INFO L349 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-23 21:24:03,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2023-11-23 21:24:04,015 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-23 21:24:04,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-23 21:24:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:04,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:24:04,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:24:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104030750] [2023-11-23 21:24:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104030750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:04,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:04,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:04,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604884028] [2023-11-23 21:24:04,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:04,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:24:04,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:24:04,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:24:04,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:24:04,913 INFO L87 Difference]: Start difference. First operand 171 states and 301 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-23 21:24:06,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:24:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:07,539 INFO L93 Difference]: Finished difference Result 182 states and 319 transitions. [2023-11-23 21:24:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:24:07,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-23 21:24:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:07,542 INFO L225 Difference]: With dead ends: 182 [2023-11-23 21:24:07,543 INFO L226 Difference]: Without dead ends: 182 [2023-11-23 21:24:07,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:24:07,544 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 88 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:07,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 13 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 21:24:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-23 21:24:07,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 158. [2023-11-23 21:24:07,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 145 states have (on average 1.903448275862069) internal successors, (276), 157 states have internal predecessors, (276), 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) [2023-11-23 21:24:07,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 276 transitions. [2023-11-23 21:24:07,577 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 276 transitions. Word has length 15 [2023-11-23 21:24:07,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:07,577 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 276 transitions. [2023-11-23 21:24:07,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-23 21:24:07,578 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 276 transitions. [2023-11-23 21:24:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:24:07,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:07,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:07,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:24:07,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:07,785 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 39 more)] === [2023-11-23 21:24:07,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:07,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2083941763, now seen corresponding path program 1 times [2023-11-23 21:24:07,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:24:07,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074740466] [2023-11-23 21:24:07,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:07,787 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 [2023-11-23 21:24:07,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:24:07,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:24:07,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-23 21:24:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:24:08,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:24:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:24:08,610 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 21:24:08,610 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:24:08,611 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (41 of 42 remaining) [2023-11-23 21:24:08,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 42 remaining) [2023-11-23 21:24:08,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 42 remaining) [2023-11-23 21:24:08,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 42 remaining) [2023-11-23 21:24:08,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 42 remaining) [2023-11-23 21:24:08,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 42 remaining) [2023-11-23 21:24:08,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 42 remaining) [2023-11-23 21:24:08,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 42 remaining) [2023-11-23 21:24:08,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 42 remaining) [2023-11-23 21:24:08,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 42 remaining) [2023-11-23 21:24:08,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 42 remaining) [2023-11-23 21:24:08,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 42 remaining) [2023-11-23 21:24:08,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 42 remaining) [2023-11-23 21:24:08,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 42 remaining) [2023-11-23 21:24:08,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 42 remaining) [2023-11-23 21:24:08,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 42 remaining) [2023-11-23 21:24:08,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 42 remaining) [2023-11-23 21:24:08,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 42 remaining) [2023-11-23 21:24:08,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 42 remaining) [2023-11-23 21:24:08,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 42 remaining) [2023-11-23 21:24:08,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 42 remaining) [2023-11-23 21:24:08,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 42 remaining) [2023-11-23 21:24:08,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 42 remaining) [2023-11-23 21:24:08,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 42 remaining) [2023-11-23 21:24:08,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 42 remaining) [2023-11-23 21:24:08,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 42 remaining) [2023-11-23 21:24:08,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 42 remaining) [2023-11-23 21:24:08,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 42 remaining) [2023-11-23 21:24:08,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 42 remaining) [2023-11-23 21:24:08,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 42 remaining) [2023-11-23 21:24:08,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 42 remaining) [2023-11-23 21:24:08,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 42 remaining) [2023-11-23 21:24:08,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 42 remaining) [2023-11-23 21:24:08,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 42 remaining) [2023-11-23 21:24:08,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 42 remaining) [2023-11-23 21:24:08,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 42 remaining) [2023-11-23 21:24:08,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 42 remaining) [2023-11-23 21:24:08,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 42 remaining) [2023-11-23 21:24:08,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 42 remaining) [2023-11-23 21:24:08,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 42 remaining) [2023-11-23 21:24:08,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 42 remaining) [2023-11-23 21:24:08,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 42 remaining) [2023-11-23 21:24:08,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:24:08,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:24:08,836 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:08,842 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:24:08,842 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:24:08,874 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,876 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,877 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,877 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,877 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,880 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,880 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,880 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,881 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-23 21:24:08,881 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,881 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,881 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,881 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,883 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,883 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,883 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,883 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,883 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,884 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner [2023-11-23 21:24:08,884 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock [2023-11-23 21:24:08,884 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers [2023-11-23 21:24:08,884 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count [2023-11-23 21:24:08,885 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind [2023-11-23 21:24:08,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:24:08 BasicIcfg [2023-11-23 21:24:08,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:24:08,892 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:24:08,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:24:08,893 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:24:08,893 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:55" (3/4) ... [2023-11-23 21:24:08,895 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:24:08,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:24:08,897 INFO L158 Benchmark]: Toolchain (without parser) took 16312.27ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 63.6MB in the beginning and 71.4MB in the end (delta: -7.8MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-23 21:24:08,897 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:24:08,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 963.16ms. Allocated memory is still 90.2MB. Free memory was 63.3MB in the beginning and 53.2MB in the end (delta: 10.2MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-11-23 21:24:08,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.43ms. Allocated memory is still 90.2MB. Free memory was 53.0MB in the beginning and 50.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:24:08,899 INFO L158 Benchmark]: Boogie Preprocessor took 64.55ms. Allocated memory is still 90.2MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:24:08,899 INFO L158 Benchmark]: RCFGBuilder took 1296.06ms. Allocated memory is still 90.2MB. Free memory was 48.3MB in the beginning and 48.7MB in the end (delta: -371.8kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-23 21:24:08,900 INFO L158 Benchmark]: TraceAbstraction took 13883.60ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 48.1MB in the beginning and 72.4MB in the end (delta: -24.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-23 21:24:08,900 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 134.2MB. Free memory was 72.4MB in the beginning and 71.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:24:08,902 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 60.8MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 963.16ms. Allocated memory is still 90.2MB. Free memory was 63.3MB in the beginning and 53.2MB in the end (delta: 10.2MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.43ms. Allocated memory is still 90.2MB. Free memory was 53.0MB in the beginning and 50.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.55ms. Allocated memory is still 90.2MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1296.06ms. Allocated memory is still 90.2MB. Free memory was 48.3MB in the beginning and 48.7MB in the end (delta: -371.8kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13883.60ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 48.1MB in the beginning and 72.4MB in the end (delta: -24.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 134.2MB. Free memory was 72.4MB in the beginning and 71.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3013. Possible FailurePath: [L2989-L2992] 0 struct s { struct s *next; int datum; } *A, *B; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2998] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L3014] 0 pthread_t t1; [L3015] 0 int *ip; [L3016] 0 struct s *sp; [L3017] 0 struct s *p = malloc(sizeof(struct s)); [L3018] CALL 0 init(p,9) [L2994] 0 p -> datum = x VAL [A={0:0}, A_mutex={1:0}, B={0:0}, \old(x)=9, p={9:0}, p={9:0}, x=9] [L2995] 0 p -> next = ((void *)0) [L3018] RET 0 init(p,9) [L3019] 0 A = malloc(sizeof(struct s)) [L3020] CALL 0 init(A,3) [L2994] 0 p -> datum = x VAL [A={2:0}, A_mutex={1:0}, B={0:0}, \old(x)=3, p={2:0}, p={2:0}, x=3] [L2995] 0 p -> next = ((void *)0) [L3020] RET 0 init(A,3) [L3021] 0 A->next = p [L3022] 0 B = malloc(sizeof(struct s)) [L3023] CALL 0 init(B,5) [L2994] 0 p -> datum = x VAL [A={2:0}, A_mutex={1:0}, B={10:0}, \old(x)=5, p={10:0}, p={10:0}, x=5] [L2995] 0 p -> next = ((void *)0) [L3023] RET 0 init(B,5) [L3024] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={2:0}, A_mutex={1:0}, B={10:0}, p={9:0}, t1={13:0}] [L3025] 0 ip = &p->datum [L3026] 0 sp = ((struct s *)((char *)(ip)-(unsigned long)__builtin_offsetof (struct s, datum))) VAL [A={2:0}, A_mutex={1:0}, B={10:0}, ip={9:4}, p={9:0}, sp={9:0}, t1={13:0}] [L3028] EXPR 0 A->next [L3028] 0 sp = A->next [L3029] 0 p->datum VAL [A={2:0}, A_mutex={1:0}, B={10:0}, ip={9:4}, p={9:0}, sp={9:0}, t1={13:0}] [L3031] 0 return 0; [L3031] 0 return 0; VAL [A={2:0}, A_mutex={1:0}, B={10:0}, \result=0, ip={9:4}, p={9:0}, sp={9:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3024]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 83 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 13.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 392 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 139 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 78 ConstructedInterpolants, 32 QuantifiedInterpolants, 925 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1834 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:24:08,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b08023-bbec-4f29-a572-045134321a64/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample