./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.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_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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_fee9af9d-b415-4efb-af42-60790c85e0bd/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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:44,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:44,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:13:44,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:44,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:44,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:44,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:44,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:44,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:44,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:44,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:44,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:44,901 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:44,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:44,903 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:44,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:44,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:44,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:44,905 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:13:44,905 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:13:44,906 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:13:44,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:44,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:13:44,912 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:44,919 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:44,919 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:44,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:44,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:44,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:44,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:44,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:44,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:44,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:44,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:44,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:44,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:44,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:44,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:44,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:44,925 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_fee9af9d-b415-4efb-af42-60790c85e0bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2023-11-21 22:13:45,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:45,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:45,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:45,225 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:45,225 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:45,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-21 22:13:48,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:48,823 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:48,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-21 22:13:48,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data/775e0a704/906cfbd508994326a73b031ae9a4a1d5/FLAG0e695f810 [2023-11-21 22:13:48,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data/775e0a704/906cfbd508994326a73b031ae9a4a1d5 [2023-11-21 22:13:48,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:48,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:48,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:48,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:48,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:48,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31209daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:48, skipping insertion in model container [2023-11-21 22:13:48,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:48" (1/1) ... [2023-11-21 22:13:48,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:49,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:49,541 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 22:13:49,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d02f5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:49, skipping insertion in model container [2023-11-21 22:13:49,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:49,543 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:13:49,545 INFO L158 Benchmark]: Toolchain (without parser) took 670.16ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 74.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:13:49,545 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:13:49,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.96ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 74.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:13:49,548 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 666.96ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 74.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 922]: 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_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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_fee9af9d-b415-4efb-af42-60790c85e0bd/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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:52,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:52,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:13:52,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:52,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:52,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:52,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:52,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:52,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:52,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:52,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:52,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:52,270 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:52,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:52,272 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:52,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:52,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:52,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:52,274 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:13:52,275 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:13:52,275 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:13:52,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:52,276 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:13:52,276 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:13:52,277 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:13:52,277 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:52,278 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:52,278 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:52,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:52,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:52,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:52,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:52,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:52,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:52,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:52,282 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:13:52,282 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:13:52,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:52,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:52,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:52,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:52,285 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:13:52,285 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_fee9af9d-b415-4efb-af42-60790c85e0bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2023-11-21 22:13:52,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:52,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:52,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:52,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:52,708 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:52,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-21 22:13:55,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:56,419 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:56,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-21 22:13:56,454 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data/77a61704a/53fe1afa9ff0446688514359a316a178/FLAG0be25b987 [2023-11-21 22:13:56,475 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/data/77a61704a/53fe1afa9ff0446688514359a316a178 [2023-11-21 22:13:56,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:56,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:56,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:56,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:56,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:56,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:56" (1/1) ... [2023-11-21 22:13:56,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54aeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:56, skipping insertion in model container [2023-11-21 22:13:56,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:56" (1/1) ... [2023-11-21 22:13:56,575 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:57,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:57,260 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:13:57,292 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:57,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:57,347 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:57,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:57,520 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:57,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57 WrapperNode [2023-11-21 22:13:57,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:57,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:57,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:57,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:57,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,613 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2023-11-21 22:13:57,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:57,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:57,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:57,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:57,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:13:57,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:13:57,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:13:57,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:13:57,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (1/1) ... [2023-11-21 22:13:57,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:57,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:13:57,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:13:57,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:13:57,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:13:57,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:13:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:13:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:13:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 22:13:57,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:13:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:13:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:13:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-21 22:13:57,738 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-21 22:13:57,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:13:57,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:13:57,742 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:13:57,997 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:13:58,011 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:13:58,361 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:13:58,658 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:13:58,658 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:13:58,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:58 BoogieIcfgContainer [2023-11-21 22:13:58,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:13:58,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:13:58,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:13:58,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:13:58,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:13:56" (1/3) ... [2023-11-21 22:13:58,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2786f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:58, skipping insertion in model container [2023-11-21 22:13:58,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:57" (2/3) ... [2023-11-21 22:13:58,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2786f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:58, skipping insertion in model container [2023-11-21 22:13:58,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:58" (3/3) ... [2023-11-21 22:13:58,673 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2023-11-21 22:13:58,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:13:58,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-21 22:13:58,694 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:13:58,770 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-21 22:13:58,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 40 transitions, 87 flow [2023-11-21 22:13:58,854 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2023-11-21 22:13:58,855 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:13:58,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 39 events. 1/39 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2023-11-21 22:13:58,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 40 transitions, 87 flow [2023-11-21 22:13:58,866 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 38 transitions, 82 flow [2023-11-21 22:13:58,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:58,892 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;@466a6c84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:58,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-21 22:13:58,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:13:58,898 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-21 22:13:58,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:58,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:58,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-21 22:13:58,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:13:58,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash 7434, now seen corresponding path program 1 times [2023-11-21 22:13:58,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:13:58,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867317878] [2023-11-21 22:13:58,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:58,925 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 22:13:58,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:13:58,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:13:58,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:13:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:59,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:13:59,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:13:59,159 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 22:13:59,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:13:59,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-21 22:13:59,188 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 22:13:59,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:13:59,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:13:59,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867317878] [2023-11-21 22:13:59,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867317878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:59,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:59,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:13:59,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395141041] [2023-11-21 22:13:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:59,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:59,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:13:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:59,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:59,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2023-11-21 22:13:59,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 22:13:59,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:59,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2023-11-21 22:13:59,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:13:59,446 INFO L124 PetriNetUnfolderBase]: 31/129 cut-off events. [2023-11-21 22:13:59,446 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-21 22:13:59,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 129 events. 31/129 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 493 event pairs, 30 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 188. Up to 76 conditions per place. [2023-11-21 22:13:59,452 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 15 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2023-11-21 22:13:59,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 112 flow [2023-11-21 22:13:59,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:13:59,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2023-11-21 22:13:59,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-11-21 22:13:59,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 75 transitions. [2023-11-21 22:13:59,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 75 transitions. [2023-11-21 22:13:59,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:13:59,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 75 transitions. [2023-11-21 22:13:59,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 22:13:59,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 22:13:59,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 22:13:59,485 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 82 flow. Second operand 3 states and 75 transitions. [2023-11-21 22:13:59,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 112 flow [2023-11-21 22:13:59,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:13:59,492 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 78 flow [2023-11-21 22:13:59,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2023-11-21 22:13:59,499 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2023-11-21 22:13:59,499 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 78 flow [2023-11-21 22:13:59,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 22:13:59,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:59,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-21 22:13:59,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:13:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:13:59,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:13:59,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 7435, now seen corresponding path program 1 times [2023-11-21 22:13:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:13:59,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528182115] [2023-11-21 22:13:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:59,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:13:59,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:13:59,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:13:59,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:13:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:59,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:13:59,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:13:59,859 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 22:13:59,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:13:59,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-21 22:13:59,892 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 22:13:59,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:13:59,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:13:59,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528182115] [2023-11-21 22:13:59,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528182115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:59,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:59,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:13:59,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942210989] [2023-11-21 22:13:59,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:59,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:59,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:13:59,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:59,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:59,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2023-11-21 22:13:59,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 22:13:59,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:59,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2023-11-21 22:13:59,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:00,097 INFO L124 PetriNetUnfolderBase]: 31/120 cut-off events. [2023-11-21 22:14:00,097 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-21 22:14:00,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 120 events. 31/120 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 418 event pairs, 30 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 191. Up to 75 conditions per place. [2023-11-21 22:14:00,101 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 14 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-11-21 22:14:00,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 106 flow [2023-11-21 22:14:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-21 22:14:00,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2023-11-21 22:14:00,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 77 transitions. [2023-11-21 22:14:00,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 77 transitions. [2023-11-21 22:14:00,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:00,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 77 transitions. [2023-11-21 22:14:00,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 22:14:00,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 22:14:00,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 22:14:00,113 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 78 flow. Second operand 3 states and 77 transitions. [2023-11-21 22:14:00,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 106 flow [2023-11-21 22:14:00,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:00,117 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 72 flow [2023-11-21 22:14:00,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2023-11-21 22:14:00,119 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2023-11-21 22:14:00,119 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 72 flow [2023-11-21 22:14:00,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 22:14:00,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:00,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-21 22:14:00,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:00,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:00,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:14:00,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:00,323 INFO L85 PathProgramCache]: Analyzing trace with hash 7149389, now seen corresponding path program 1 times [2023-11-21 22:14:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:00,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174155930] [2023-11-21 22:14:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:00,324 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 22:14:00,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:00,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:00,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:00,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:14:00,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:00,556 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id~0#1.base_66| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#i~0#1.base_62| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id~0#1.base_66|)) (= |c_#valid| (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id~0#1.base_66| (_ bv0 1)) |v_ULTIMATE.start_main_~#i~0#1.base_62| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id~0#1.base_66| (_ bv1 1)) |v_ULTIMATE.start_main_~#i~0#1.base_62|)))) is different from true [2023-11-21 22:14:00,557 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 22:14:00,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:00,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:00,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174155930] [2023-11-21 22:14:00,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174155930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:00,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:00,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:00,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700768819] [2023-11-21 22:14:00,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:00,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:00,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:00,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-21 22:14:00,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2023-11-21 22:14:00,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:00,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:00,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2023-11-21 22:14:00,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:00,771 INFO L124 PetriNetUnfolderBase]: 56/156 cut-off events. [2023-11-21 22:14:00,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:14:00,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 156 events. 56/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 552 event pairs, 56 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 286. Up to 134 conditions per place. [2023-11-21 22:14:00,774 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 22 selfloop transitions, 2 changer transitions 1/30 dead transitions. [2023-11-21 22:14:00,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 118 flow [2023-11-21 22:14:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:14:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:14:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2023-11-21 22:14:00,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.325 [2023-11-21 22:14:00,777 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 52 transitions. [2023-11-21 22:14:00,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 52 transitions. [2023-11-21 22:14:00,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:00,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 52 transitions. [2023-11-21 22:14:00,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:00,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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 22:14:00,779 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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 22:14:00,780 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 72 flow. Second operand 4 states and 52 transitions. [2023-11-21 22:14:00,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 118 flow [2023-11-21 22:14:00,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:00,782 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 66 flow [2023-11-21 22:14:00,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2023-11-21 22:14:00,783 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2023-11-21 22:14:00,783 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 66 flow [2023-11-21 22:14:00,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:00,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:00,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-21 22:14:00,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:00,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:00,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:14:00,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:00,988 INFO L85 PathProgramCache]: Analyzing trace with hash 7149343, now seen corresponding path program 1 times [2023-11-21 22:14:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:00,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073756552] [2023-11-21 22:14:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:00,988 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 22:14:00,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:00,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:01,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:01,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:14:01,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:01,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:14:01,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-21 22:14:01,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-21 22:14:01,206 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 22:14:01,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:01,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:01,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073756552] [2023-11-21 22:14:01,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073756552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:01,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:01,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:14:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305677274] [2023-11-21 22:14:01,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:01,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:01,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:01,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:01,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:01,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 40 [2023-11-21 22:14:01,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 22:14:01,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:01,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 40 [2023-11-21 22:14:01,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:01,364 INFO L124 PetriNetUnfolderBase]: 30/105 cut-off events. [2023-11-21 22:14:01,364 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-11-21 22:14:01,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 105 events. 30/105 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 329 event pairs, 30 based on Foata normal form. 7/107 useless extension candidates. Maximal degree in co-relation 183. Up to 75 conditions per place. [2023-11-21 22:14:01,366 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 14 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-11-21 22:14:01,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 94 flow [2023-11-21 22:14:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2023-11-21 22:14:01,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.65 [2023-11-21 22:14:01,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 78 transitions. [2023-11-21 22:14:01,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 78 transitions. [2023-11-21 22:14:01,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:01,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 78 transitions. [2023-11-21 22:14:01,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 22:14:01,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 22:14:01,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 22:14:01,371 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 66 flow. Second operand 3 states and 78 transitions. [2023-11-21 22:14:01,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 94 flow [2023-11-21 22:14:01,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 88 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-21 22:14:01,373 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 60 flow [2023-11-21 22:14:01,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-11-21 22:14:01,374 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -10 predicate places. [2023-11-21 22:14:01,374 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 60 flow [2023-11-21 22:14:01,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 22:14:01,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:01,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:01,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:01,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:01,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:14:01,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1187885661, now seen corresponding path program 1 times [2023-11-21 22:14:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:01,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936639066] [2023-11-21 22:14:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:01,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:14:01,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:01,582 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:01,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:01,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 22:14:01,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:01,697 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 22:14:01,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:14:01,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-21 22:14:01,824 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 22:14:01,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:01,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:01,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936639066] [2023-11-21 22:14:01,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936639066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:01,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:01,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:14:01,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552820433] [2023-11-21 22:14:01,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:01,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:14:01,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:01,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:14:01,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:02,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 40 [2023-11-21 22:14:02,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 22:14:02,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:02,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 40 [2023-11-21 22:14:02,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:02,191 INFO L124 PetriNetUnfolderBase]: 30/101 cut-off events. [2023-11-21 22:14:02,192 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-11-21 22:14:02,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 101 events. 30/101 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 300 event pairs, 15 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 173. Up to 67 conditions per place. [2023-11-21 22:14:02,193 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 17 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-11-21 22:14:02,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 108 flow [2023-11-21 22:14:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:14:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:14:02,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2023-11-21 22:14:02,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2023-11-21 22:14:02,199 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 125 transitions. [2023-11-21 22:14:02,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 125 transitions. [2023-11-21 22:14:02,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:02,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 125 transitions. [2023-11-21 22:14:02,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 22:14:02,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 40.0) internal successors, (280), 7 states have internal predecessors, (280), 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 22:14:02,206 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 40.0) internal successors, (280), 7 states have internal predecessors, (280), 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 22:14:02,206 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 6 states and 125 transitions. [2023-11-21 22:14:02,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 108 flow [2023-11-21 22:14:02,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:02,209 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 60 flow [2023-11-21 22:14:02,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=60, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-11-21 22:14:02,212 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -9 predicate places. [2023-11-21 22:14:02,212 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 60 flow [2023-11-21 22:14:02,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 22:14:02,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:02,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:02,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:02,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:02,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:14:02,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1187885662, now seen corresponding path program 1 times [2023-11-21 22:14:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118031278] [2023-11-21 22:14:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:02,417 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 22:14:02,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:02,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:02,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:02,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:14:02,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:02,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:14:02,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:14:02,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-21 22:14:02,594 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 22:14:02,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:02,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:02,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118031278] [2023-11-21 22:14:02,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118031278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:02,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:02,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:14:02,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546276216] [2023-11-21 22:14:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:14:02,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:02,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:14:02,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:14:02,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2023-11-21 22:14:02,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 22:14:02,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:02,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2023-11-21 22:14:02,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:02,844 INFO L124 PetriNetUnfolderBase]: 30/88 cut-off events. [2023-11-21 22:14:02,845 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:14:02,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 88 events. 30/88 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 260 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 24. Up to 67 conditions per place. [2023-11-21 22:14:02,846 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 18 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2023-11-21 22:14:02,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 110 flow [2023-11-21 22:14:02,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:14:02,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:14:02,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2023-11-21 22:14:02,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52 [2023-11-21 22:14:02,848 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2023-11-21 22:14:02,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2023-11-21 22:14:02,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:02,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2023-11-21 22:14:02,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 22:14:02,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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 22:14:02,851 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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 22:14:02,851 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 60 flow. Second operand 5 states and 104 transitions. [2023-11-21 22:14:02,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 110 flow [2023-11-21 22:14:02,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 103 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:14:02,853 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 57 flow [2023-11-21 22:14:02,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2023-11-21 22:14:02,854 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -11 predicate places. [2023-11-21 22:14:02,854 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 57 flow [2023-11-21 22:14:02,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 22:14:02,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:02,855 INFO L208 CegarLoopForPetriNet]: 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] [2023-11-21 22:14:02,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:03,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:03,058 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-21 22:14:03,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:03,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1135774705, now seen corresponding path program 1 times [2023-11-21 22:14:03,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:03,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597362346] [2023-11-21 22:14:03,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:03,059 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 22:14:03,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:03,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:03,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:03,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:14:03,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:03,607 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 22:14:03,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:03,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:03,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597362346] [2023-11-21 22:14:03,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597362346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:03,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:03,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:03,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904452268] [2023-11-21 22:14:03,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:03,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:03,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:03,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:03,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:03,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2023-11-21 22:14:03,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 22:14:03,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:03,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2023-11-21 22:14:03,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:03,977 INFO L124 PetriNetUnfolderBase]: 30/96 cut-off events. [2023-11-21 22:14:03,977 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-21 22:14:03,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 96 events. 30/96 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 270 event pairs, 30 based on Foata normal form. 1/96 useless extension candidates. Maximal degree in co-relation 137. Up to 75 conditions per place. [2023-11-21 22:14:03,978 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-11-21 22:14:03,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 87 flow [2023-11-21 22:14:03,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:14:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:14:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2023-11-21 22:14:03,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.58125 [2023-11-21 22:14:03,981 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 93 transitions. [2023-11-21 22:14:03,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 93 transitions. [2023-11-21 22:14:03,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:03,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 93 transitions. [2023-11-21 22:14:03,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 22:14:03,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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 22:14:03,983 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 states have internal predecessors, (200), 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 22:14:03,983 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 57 flow. Second operand 4 states and 93 transitions. [2023-11-21 22:14:03,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 87 flow [2023-11-21 22:14:03,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 79 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:14:03,985 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-11-21 22:14:03,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-11-21 22:14:03,986 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -13 predicate places. [2023-11-21 22:14:03,986 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-11-21 22:14:03,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 22:14:03,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 20 remaining) [2023-11-21 22:14:03,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 20 remaining) [2023-11-21 22:14:03,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 20 remaining) [2023-11-21 22:14:03,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 20 remaining) [2023-11-21 22:14:03,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (15 of 20 remaining) [2023-11-21 22:14:03,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 20 remaining) [2023-11-21 22:14:03,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 20 remaining) [2023-11-21 22:14:03,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 20 remaining) [2023-11-21 22:14:03,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 20 remaining) [2023-11-21 22:14:03,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 20 remaining) [2023-11-21 22:14:03,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 20 remaining) [2023-11-21 22:14:03,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-21 22:14:03,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 20 remaining) [2023-11-21 22:14:03,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 20 remaining) [2023-11-21 22:14:03,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 20 remaining) [2023-11-21 22:14:03,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 20 remaining) [2023-11-21 22:14:03,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 20 remaining) [2023-11-21 22:14:03,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 20 remaining) [2023-11-21 22:14:03,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 20 remaining) [2023-11-21 22:14:03,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 20 remaining) [2023-11-21 22:14:04,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:04,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/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 22:14:04,198 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:04,203 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:14:04,203 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:14:04,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:14:04 BasicIcfg [2023-11-21 22:14:04,209 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:14:04,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:14:04,210 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:14:04,210 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:14:04,210 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:58" (3/4) ... [2023-11-21 22:14:04,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:14:04,215 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-21 22:14:04,221 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2023-11-21 22:14:04,222 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-21 22:14:04,222 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:14:04,222 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:14:04,319 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:14:04,320 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:14:04,320 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:14:04,321 INFO L158 Benchmark]: Toolchain (without parser) took 7838.27ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 66.3MB in the beginning and 88.2MB in the end (delta: -22.0MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,321 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:14:04,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1032.54ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 53.5MB in the end (delta: 12.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.41ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 51.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,323 INFO L158 Benchmark]: Boogie Preprocessor took 48.32ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 49.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,323 INFO L158 Benchmark]: RCFGBuilder took 997.59ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 45.7MB in the end (delta: 3.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,324 INFO L158 Benchmark]: TraceAbstraction took 5545.17ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 45.2MB in the beginning and 93.3MB in the end (delta: -48.1MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,325 INFO L158 Benchmark]: Witness Printer took 110.85ms. Allocated memory is still 134.2MB. Free memory was 93.3MB in the beginning and 88.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:14:04,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1032.54ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 53.5MB in the end (delta: 12.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.41ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 51.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.32ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 49.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 997.59ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 45.7MB in the end (delta: 3.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5545.17ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 45.2MB in the beginning and 93.3MB in the end (delta: -48.1MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Witness Printer took 110.85ms. Allocated memory is still 134.2MB. Free memory was 93.3MB in the beginning and 88.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 928]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 53 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 431 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 39 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 5 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 46 ConstructedInterpolants, 2 QuantifiedInterpolants, 794 SizeOfPredicates, 14 NumberOfNonLiveVariables, 560 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:14:04,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fee9af9d-b415-4efb-af42-60790c85e0bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE