./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:34,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:35,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:25:35,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:35,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:35,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:35,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:35,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:35,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:35,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:35,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:35,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:35,186 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:35,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:35,189 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:35,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:35,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:35,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:35,192 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:25:35,192 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:25:35,193 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:25:35,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:35,194 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:25:35,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:25:35,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:35,195 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:35,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:35,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:35,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:35,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:35,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:35,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:35,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:35,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:35,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:35,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:35,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:35,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:35,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:35,202 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2023-11-21 22:25:35,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:35,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:35,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:35,519 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:35,519 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:35,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-11-21 22:25:38,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:39,235 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:39,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-11-21 22:25:39,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data/75b1851cd/2063ca3a6a984691aa32d1d380c98246/FLAGb119b71c0 [2023-11-21 22:25:39,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data/75b1851cd/2063ca3a6a984691aa32d1d380c98246 [2023-11-21 22:25:39,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:39,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:39,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:39,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:39,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:39,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:39" (1/1) ... [2023-11-21 22:25:39,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea4fe76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:39, skipping insertion in model container [2023-11-21 22:25:39,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:39" (1/1) ... [2023-11-21 22:25:39,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:40,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:40,140 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) [2023-11-21 22:25:40,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ddf0425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:40, skipping insertion in model container [2023-11-21 22:25:40,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:40,141 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:25:40,143 INFO L158 Benchmark]: Toolchain (without parser) took 860.09ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 95.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:25:40,144 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:40,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 857.38ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 95.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:25:40,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 857.38ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 95.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:42,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:42,771 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:25:42,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:42,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:42,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:42,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:42,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:42,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:42,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:42,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:42,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:42,843 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:42,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:42,845 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:42,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:42,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:42,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:42,847 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:25:42,848 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:25:42,848 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:25:42,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:42,849 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:25:42,850 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:25:42,850 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:25:42,851 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:25:42,851 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:42,852 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:42,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:42,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:42,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:42,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:42,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:42,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:42,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:42,857 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:25:42,857 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:25:42,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:42,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:42,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:42,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:42,860 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:25:42,860 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2023-11-21 22:25:43,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:43,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:43,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:43,308 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:43,309 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:43,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-11-21 22:25:46,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:47,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:47,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-11-21 22:25:47,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data/94f254414/39fe4a47625e4df2aea6db3517c50499/FLAGe53b3abd1 [2023-11-21 22:25:47,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/data/94f254414/39fe4a47625e4df2aea6db3517c50499 [2023-11-21 22:25:47,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:47,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:47,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:47,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:47,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:47,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:47" (1/1) ... [2023-11-21 22:25:47,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd2267c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:47, skipping insertion in model container [2023-11-21 22:25:47,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:47" (1/1) ... [2023-11-21 22:25:47,209 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:48,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:48,195 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:25:48,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:48,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:48,372 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:48,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:48,601 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:48,610 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:48,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48 WrapperNode [2023-11-21 22:25:48,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:48,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:48,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:48,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:48,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,797 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1048 [2023-11-21 22:25:48,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:48,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:48,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:48,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:48,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:48,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:49,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:49,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:49,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:49,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:49,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (1/1) ... [2023-11-21 22:25:49,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:49,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:49,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:49,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-21 22:25:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-21 22:25:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:25:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:25:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:25:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:25:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:25:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:25:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-21 22:25:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-21 22:25:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:25:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:25:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-21 22:25:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-21 22:25:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:25:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-21 22:25:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-21 22:25:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:49,467 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:49,469 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:54,978 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:55,275 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:55,276 INFO L308 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-21 22:25:55,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:55 BoogieIcfgContainer [2023-11-21 22:25:55,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:55,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:55,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:55,284 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:55,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:47" (1/3) ... [2023-11-21 22:25:55,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdd39c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:55, skipping insertion in model container [2023-11-21 22:25:55,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:48" (2/3) ... [2023-11-21 22:25:55,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdd39c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:55, skipping insertion in model container [2023-11-21 22:25:55,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:55" (3/3) ... [2023-11-21 22:25:55,287 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2023-11-21 22:25:55,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:55,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 528 error locations. [2023-11-21 22:25:55,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:55,404 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=PETRI_NET, 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;@52164829, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:55,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 528 error locations. [2023-11-21 22:25:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 978 states, 427 states have (on average 2.5152224824355973) internal successors, (1074), 958 states have internal predecessors, (1074), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-21 22:25:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:25:55,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:55,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:25:55,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:25:55,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash 55333, now seen corresponding path program 1 times [2023-11-21 22:25:55,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:55,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644513380] [2023-11-21 22:25:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:55,441 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 [2023-11-21 22:25:55,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:55,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:55,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:55,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:25:55,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:55,750 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 [2023-11-21 22:25:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:55,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:55,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:55,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644513380] [2023-11-21 22:25:55,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644513380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:55,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:55,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:25:55,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168118156] [2023-11-21 22:25:55,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:55,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:25:55,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:55,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:25:55,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:55,853 INFO L87 Difference]: Start difference. First operand has 978 states, 427 states have (on average 2.5152224824355973) internal successors, (1074), 958 states have internal predecessors, (1074), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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) [2023-11-21 22:25:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:58,657 INFO L93 Difference]: Finished difference Result 1050 states and 1119 transitions. [2023-11-21 22:25:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:25:58,662 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 [2023-11-21 22:25:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:58,683 INFO L225 Difference]: With dead ends: 1050 [2023-11-21 22:25:58,683 INFO L226 Difference]: Without dead ends: 1049 [2023-11-21 22:25:58,685 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 [2023-11-21 22:25:58,689 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 647 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:58,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 851 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-21 22:25:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2023-11-21 22:25:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 991. [2023-11-21 22:25:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 455 states have (on average 2.3516483516483517) internal successors, (1070), 973 states have internal predecessors, (1070), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-21 22:25:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1100 transitions. [2023-11-21 22:25:58,787 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1100 transitions. Word has length 2 [2023-11-21 22:25:58,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:58,788 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1100 transitions. [2023-11-21 22:25:58,788 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) [2023-11-21 22:25:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1100 transitions. [2023-11-21 22:25:58,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:25:58,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:58,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:25:58,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:58,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:58,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:25:58,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash 55334, now seen corresponding path program 1 times [2023-11-21 22:25:58,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:58,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539107419] [2023-11-21 22:25:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:58,994 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 [2023-11-21 22:25:58,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:58,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:59,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:59,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:25:59,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:59,150 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 [2023-11-21 22:25:59,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:59,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:59,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:59,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539107419] [2023-11-21 22:25:59,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539107419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:59,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:59,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:25:59,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285483772] [2023-11-21 22:25:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:59,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:25:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:25:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:59,175 INFO L87 Difference]: Start difference. First operand 991 states and 1100 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) [2023-11-21 22:26:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:03,386 INFO L93 Difference]: Finished difference Result 1348 states and 1493 transitions. [2023-11-21 22:26:03,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:03,389 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 [2023-11-21 22:26:03,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:03,397 INFO L225 Difference]: With dead ends: 1348 [2023-11-21 22:26:03,398 INFO L226 Difference]: Without dead ends: 1348 [2023-11-21 22:26:03,398 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 [2023-11-21 22:26:03,401 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 381 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:03,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1247 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-21 22:26:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2023-11-21 22:26:03,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1160. [2023-11-21 22:26:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 623 states have (on average 2.322632423756019) internal successors, (1447), 1140 states have internal predecessors, (1447), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:26:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1481 transitions. [2023-11-21 22:26:03,496 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1481 transitions. Word has length 2 [2023-11-21 22:26:03,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:03,496 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1481 transitions. [2023-11-21 22:26:03,496 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) [2023-11-21 22:26:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1481 transitions. [2023-11-21 22:26:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 22:26:03,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:03,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:26:03,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:03,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:03,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:03,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1648515603, now seen corresponding path program 1 times [2023-11-21 22:26:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:03,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876228915] [2023-11-21 22:26:03,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:03,713 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 [2023-11-21 22:26:03,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:03,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:03,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:03,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:26:03,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:03,962 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 [2023-11-21 22:26:03,971 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 [2023-11-21 22:26:04,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:26:04,061 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 [2023-11-21 22:26:04,086 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-21 22:26:04,087 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 [2023-11-21 22:26:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:04,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:04,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:04,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876228915] [2023-11-21 22:26:04,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876228915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:04,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:04,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:26:04,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365648362] [2023-11-21 22:26:04,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:04,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:26:04,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:04,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:26:04,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:26:04,107 INFO L87 Difference]: Start difference. First operand 1160 states and 1481 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:10,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:10,651 INFO L93 Difference]: Finished difference Result 1784 states and 2162 transitions. [2023-11-21 22:26:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:26:10,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-21 22:26:10,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:10,664 INFO L225 Difference]: With dead ends: 1784 [2023-11-21 22:26:10,664 INFO L226 Difference]: Without dead ends: 1784 [2023-11-21 22:26:10,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:26:10,666 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 651 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:10,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1212 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-21 22:26:10,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2023-11-21 22:26:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1274. [2023-11-21 22:26:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 737 states have (on average 2.305291723202171) internal successors, (1699), 1254 states have internal predecessors, (1699), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:26:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1733 transitions. [2023-11-21 22:26:10,711 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1733 transitions. Word has length 5 [2023-11-21 22:26:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:10,711 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1733 transitions. [2023-11-21 22:26:10,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1733 transitions. [2023-11-21 22:26:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:26:10,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:10,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:26:10,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:10,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:10,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:10,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash -435623836, now seen corresponding path program 1 times [2023-11-21 22:26:10,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:10,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403831257] [2023-11-21 22:26:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:10,917 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 [2023-11-21 22:26:10,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:10,919 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:10,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:11,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:26:11,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:11,076 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 [2023-11-21 22:26:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:11,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:11,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:11,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403831257] [2023-11-21 22:26:11,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403831257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:11,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:11,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:26:11,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096938202] [2023-11-21 22:26:11,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:11,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:11,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:11,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:11,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:11,094 INFO L87 Difference]: Start difference. First operand 1274 states and 1733 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) [2023-11-21 22:26:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:13,900 INFO L93 Difference]: Finished difference Result 1751 states and 2435 transitions. [2023-11-21 22:26:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:13,901 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 [2023-11-21 22:26:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:13,911 INFO L225 Difference]: With dead ends: 1751 [2023-11-21 22:26:13,911 INFO L226 Difference]: Without dead ends: 1751 [2023-11-21 22:26:13,912 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 [2023-11-21 22:26:13,913 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 866 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:13,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1059 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-21 22:26:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2023-11-21 22:26:13,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1229. [2023-11-21 22:26:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 737 states have (on average 2.225237449118046) internal successors, (1640), 1209 states have internal predecessors, (1640), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:26:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1674 transitions. [2023-11-21 22:26:13,953 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1674 transitions. Word has length 6 [2023-11-21 22:26:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:13,953 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 1674 transitions. [2023-11-21 22:26:13,954 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) [2023-11-21 22:26:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1674 transitions. [2023-11-21 22:26:13,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:26:13,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:13,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:26:13,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:14,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:14,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:14,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash -435623835, now seen corresponding path program 1 times [2023-11-21 22:26:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:14,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038285058] [2023-11-21 22:26:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:14,169 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 [2023-11-21 22:26:14,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:14,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:14,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:14,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:26:14,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:14,340 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 [2023-11-21 22:26:14,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:14,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:14,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:14,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038285058] [2023-11-21 22:26:14,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038285058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:14,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:14,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:26:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944362740] [2023-11-21 22:26:14,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:14,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:14,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:14,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:14,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:14,379 INFO L87 Difference]: Start difference. First operand 1229 states and 1674 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) [2023-11-21 22:26:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:18,269 INFO L93 Difference]: Finished difference Result 1784 states and 2424 transitions. [2023-11-21 22:26:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:18,271 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 [2023-11-21 22:26:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:18,281 INFO L225 Difference]: With dead ends: 1784 [2023-11-21 22:26:18,281 INFO L226 Difference]: Without dead ends: 1784 [2023-11-21 22:26:18,281 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 [2023-11-21 22:26:18,282 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 618 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:18,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1324 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-21 22:26:18,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2023-11-21 22:26:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1219. [2023-11-21 22:26:18,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 737 states have (on average 2.1926729986431477) internal successors, (1616), 1199 states have internal predecessors, (1616), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:26:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1650 transitions. [2023-11-21 22:26:18,325 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1650 transitions. Word has length 6 [2023-11-21 22:26:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:18,325 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 1650 transitions. [2023-11-21 22:26:18,325 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) [2023-11-21 22:26:18,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1650 transitions. [2023-11-21 22:26:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:26:18,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:18,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:18,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-21 22:26:18,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:18,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:18,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:18,530 INFO L85 PathProgramCache]: Analyzing trace with hash -3807760, now seen corresponding path program 1 times [2023-11-21 22:26:18,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:18,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128036931] [2023-11-21 22:26:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:18,531 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 [2023-11-21 22:26:18,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:18,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:18,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:18,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:26:18,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:18,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:18,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:18,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128036931] [2023-11-21 22:26:18,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128036931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:18,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:18,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086198795] [2023-11-21 22:26:18,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:18,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:26:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:18,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:26:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:26:18,800 INFO L87 Difference]: Start difference. First operand 1219 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:21,298 INFO L93 Difference]: Finished difference Result 1649 states and 2172 transitions. [2023-11-21 22:26:21,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:26:21,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 22:26:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:21,308 INFO L225 Difference]: With dead ends: 1649 [2023-11-21 22:26:21,308 INFO L226 Difference]: Without dead ends: 1649 [2023-11-21 22:26:21,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:26:21,310 INFO L413 NwaCegarLoop]: 914 mSDtfsCounter, 491 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:21,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 2457 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 22:26:21,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2023-11-21 22:26:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1427. [2023-11-21 22:26:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 945 states have (on average 2.202116402116402) internal successors, (2081), 1407 states have internal predecessors, (2081), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:26:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2115 transitions. [2023-11-21 22:26:21,353 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2115 transitions. Word has length 12 [2023-11-21 22:26:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:21,354 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 2115 transitions. [2023-11-21 22:26:21,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2115 transitions. [2023-11-21 22:26:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:26:21,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:21,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:21,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:21,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:21,558 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr332REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:21,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:21,558 INFO L85 PathProgramCache]: Analyzing trace with hash -592731144, now seen corresponding path program 1 times [2023-11-21 22:26:21,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:21,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638700665] [2023-11-21 22:26:21,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:21,559 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 [2023-11-21 22:26:21,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:21,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:21,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:21,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:26:21,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:21,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:21,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638700665] [2023-11-21 22:26:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638700665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:21,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:21,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116088229] [2023-11-21 22:26:21,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:21,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:21,787 INFO L87 Difference]: Start difference. First operand 1427 states and 2115 transitions. Second operand has 3 states, 3 states have (on average 4.0) 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) [2023-11-21 22:26:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:22,818 INFO L93 Difference]: Finished difference Result 1343 states and 1955 transitions. [2023-11-21 22:26:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:22,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) 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 [2023-11-21 22:26:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:22,829 INFO L225 Difference]: With dead ends: 1343 [2023-11-21 22:26:22,829 INFO L226 Difference]: Without dead ends: 1343 [2023-11-21 22:26:22,830 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 [2023-11-21 22:26:22,830 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 69 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:22,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1569 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:26:22,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2023-11-21 22:26:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1343. [2023-11-21 22:26:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 885 states have (on average 2.1706214689265537) internal successors, (1921), 1323 states have internal predecessors, (1921), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:26:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1955 transitions. [2023-11-21 22:26:22,880 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1955 transitions. Word has length 12 [2023-11-21 22:26:22,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:22,881 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 1955 transitions. [2023-11-21 22:26:22,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) 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) [2023-11-21 22:26:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1955 transitions. [2023-11-21 22:26:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:26:22,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:22,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:22,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:23,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:23,085 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:23,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:23,086 INFO L85 PathProgramCache]: Analyzing trace with hash 599440424, now seen corresponding path program 1 times [2023-11-21 22:26:23,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:23,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726015311] [2023-11-21 22:26:23,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:23,086 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 [2023-11-21 22:26:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:23,088 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:23,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:23,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:26:23,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:23,317 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:26:23,318 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:26:23,319 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:26:23,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-21 22:26:23,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:26:23,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-21 22:26:23,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:23,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:23,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:23,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726015311] [2023-11-21 22:26:23,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726015311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:23,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:23,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:26:23,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719462065] [2023-11-21 22:26:23,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:23,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:26:23,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:23,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:26:23,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:26:23,409 INFO L87 Difference]: Start difference. First operand 1343 states and 1955 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:25,588 INFO L93 Difference]: Finished difference Result 1374 states and 1734 transitions. [2023-11-21 22:26:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:26:25,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-21 22:26:25,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:25,597 INFO L225 Difference]: With dead ends: 1374 [2023-11-21 22:26:25,597 INFO L226 Difference]: Without dead ends: 1374 [2023-11-21 22:26:25,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:26:25,598 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 288 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:25,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 2382 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-21 22:26:25,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2023-11-21 22:26:25,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1078. [2023-11-21 22:26:25,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 622 states have (on average 2.157556270096463) internal successors, (1342), 1060 states have internal predecessors, (1342), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-21 22:26:25,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1372 transitions. [2023-11-21 22:26:25,626 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1372 transitions. Word has length 15 [2023-11-21 22:26:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:25,626 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1372 transitions. [2023-11-21 22:26:25,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1372 transitions. [2023-11-21 22:26:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:26:25,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:25,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:25,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:25,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:25,831 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:25,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1789732357, now seen corresponding path program 1 times [2023-11-21 22:26:25,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:25,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775104973] [2023-11-21 22:26:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:25,833 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 [2023-11-21 22:26:25,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:25,834 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:25,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:26,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:26:26,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:26,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:26,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775104973] [2023-11-21 22:26:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775104973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:26,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:26,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556797832] [2023-11-21 22:26:26,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:26,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:26:26,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:26,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:26:26,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:26,060 INFO L87 Difference]: Start difference. First operand 1078 states and 1372 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:26,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:26,904 INFO L93 Difference]: Finished difference Result 1024 states and 1292 transitions. [2023-11-21 22:26:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:26:26,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-21 22:26:26,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:26,910 INFO L225 Difference]: With dead ends: 1024 [2023-11-21 22:26:26,910 INFO L226 Difference]: Without dead ends: 1024 [2023-11-21 22:26:26,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:26:26,911 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 69 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:26,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1495 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:26:26,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2023-11-21 22:26:26,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1024. [2023-11-21 22:26:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 592 states have (on average 2.1317567567567566) internal successors, (1262), 1006 states have internal predecessors, (1262), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-21 22:26:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1292 transitions. [2023-11-21 22:26:26,933 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1292 transitions. Word has length 14 [2023-11-21 22:26:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:26,934 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1292 transitions. [2023-11-21 22:26:26,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:26:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1292 transitions. [2023-11-21 22:26:26,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:26:26,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:26,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:26,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-21 22:26:27,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:27,138 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:27,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash 354546827, now seen corresponding path program 1 times [2023-11-21 22:26:27,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002431428] [2023-11-21 22:26:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:27,139 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 [2023-11-21 22:26:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:27,141 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:27,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:27,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:26:27,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:27,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:27,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:27,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002431428] [2023-11-21 22:26:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002431428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:27,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:27,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:26:27,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270594436] [2023-11-21 22:26:27,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:27,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:26:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:27,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:26:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:26:27,377 INFO L87 Difference]: Start difference. First operand 1024 states and 1292 transitions. Second operand has 4 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) [2023-11-21 22:26:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:28,611 INFO L93 Difference]: Finished difference Result 1010 states and 1250 transitions. [2023-11-21 22:26:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:26:28,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2023-11-21 22:26:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:28,618 INFO L225 Difference]: With dead ends: 1010 [2023-11-21 22:26:28,618 INFO L226 Difference]: Without dead ends: 1010 [2023-11-21 22:26:28,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:26:28,619 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 58 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:28,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2199 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-21 22:26:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-11-21 22:26:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1008. [2023-11-21 22:26:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 590 states have (on average 2.064406779661017) internal successors, (1218), 990 states have internal predecessors, (1218), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-21 22:26:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1248 transitions. [2023-11-21 22:26:28,642 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1248 transitions. Word has length 15 [2023-11-21 22:26:28,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:28,642 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1248 transitions. [2023-11-21 22:26:28,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-11-21 22:26:28,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1248 transitions. [2023-11-21 22:26:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:26:28,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:28,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:28,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:28,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:28,847 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-21 22:26:28,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:28,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1971099494, now seen corresponding path program 1 times [2023-11-21 22:26:28,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:26:28,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961968273] [2023-11-21 22:26:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:28,849 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 [2023-11-21 22:26:28,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:26:28,850 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:26:28,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d1b8fb7-94b0-41dc-9774-8be9e67e6f4d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:26:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:29,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:26:29,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:29,100 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 [2023-11-21 22:26:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:26:29,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:29,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:26:29,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961968273] [2023-11-21 22:26:29,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961968273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:29,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:29,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:26:29,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534633469] [2023-11-21 22:26:29,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:29,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:26:29,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:26:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:26:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:26:29,319 INFO L87 Difference]: Start difference. First operand 1008 states and 1248 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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)