./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:04,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:04,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:24:04,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:04,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:04,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:04,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:04,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:04,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:04,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:04,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:04,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:04,285 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:04,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:04,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:04,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:04,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:04,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:04,288 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:24:04,289 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:24:04,289 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:24:04,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:04,292 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:24:04,292 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:24:04,293 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:04,293 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:04,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:04,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:04,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:04,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:04,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:04,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:04,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:04,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:04,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:04,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:04,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:04,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:04,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:04,297 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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 [2023-11-21 22:24:04,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:04,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:04,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:04,628 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:04,642 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:04,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2023-11-21 22:24:07,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:08,031 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:08,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2023-11-21 22:24:08,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data/663388067/953a1d505d244c3b9993e00f204333ed/FLAGb20f9e91e [2023-11-21 22:24:08,054 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data/663388067/953a1d505d244c3b9993e00f204333ed [2023-11-21 22:24:08,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:08,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:08,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:08,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:08,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:08,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:08" (1/1) ... [2023-11-21 22:24:08,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e9e592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:08, skipping insertion in model container [2023-11-21 22:24:08,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:08" (1/1) ... [2023-11-21 22:24:08,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:08,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:08,302 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 22:24:08,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23223444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:08, skipping insertion in model container [2023-11-21 22:24:08,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:08,303 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:24:08,305 INFO L158 Benchmark]: Toolchain (without parser) took 246.01ms. Allocated memory is still 176.2MB. Free memory was 146.9MB in the beginning and 136.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:24:08,306 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:08,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.47ms. Allocated memory is still 176.2MB. Free memory was 146.5MB in the beginning and 136.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:24:08,309 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.47ms. Allocated memory is still 176.2MB. Free memory was 146.5MB in the beginning and 136.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 106]: 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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:10,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:11,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:24:11,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:11,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:11,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:11,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:11,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:11,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:11,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:11,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:11,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:11,164 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:11,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:11,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:11,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:11,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:11,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:11,168 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:24:11,170 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:24:11,170 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:24:11,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:11,171 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:24:11,172 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:24:11,172 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:24:11,173 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:24:11,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:11,173 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:11,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:11,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:11,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:11,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:11,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:11,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:11,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:11,176 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:24:11,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:24:11,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:11,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:11,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:11,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:11,178 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:24:11,178 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_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 [2023-11-21 22:24:11,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:11,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:11,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:11,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:11,613 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:11,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2023-11-21 22:24:14,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:15,210 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:15,211 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2023-11-21 22:24:15,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data/e4fed64e9/a05593afc18f4339864ffe88b939acfc/FLAGbe6bb7ecb [2023-11-21 22:24:15,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/data/e4fed64e9/a05593afc18f4339864ffe88b939acfc [2023-11-21 22:24:15,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:15,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:15,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:15,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:15,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:15,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bc6a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15, skipping insertion in model container [2023-11-21 22:24:15,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:15,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:15,616 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:24:15,648 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:15,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:15,693 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:15,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:15,761 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:15,762 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:15,771 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:15,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15 WrapperNode [2023-11-21 22:24:15,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:15,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:15,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:15,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:15,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,872 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 274 [2023-11-21 22:24:15,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:15,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:15,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:15,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:15,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:15,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:15,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:15,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:15,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (1/1) ... [2023-11-21 22:24:15,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:15,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:16,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:16,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:24:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:24:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:24:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:24:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:24:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:24:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:24:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:24:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:24:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:24:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:24:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:24:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:24:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:24:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:24:16,056 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 22:24:16,236 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:16,241 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:17,120 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:17,768 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:17,768 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 22:24:17,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:17 BoogieIcfgContainer [2023-11-21 22:24:17,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:17,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:24:17,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:24:17,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:24:17,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:15" (1/3) ... [2023-11-21 22:24:17,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c29739c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:17, skipping insertion in model container [2023-11-21 22:24:17,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:15" (2/3) ... [2023-11-21 22:24:17,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c29739c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:17, skipping insertion in model container [2023-11-21 22:24:17,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:17" (3/3) ... [2023-11-21 22:24:17,781 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2023-11-21 22:24:17,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:24:17,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-21 22:24:17,802 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:24:17,919 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:24:17,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 171 flow [2023-11-21 22:24:18,018 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2023-11-21 22:24:18,018 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:24:18,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 72 events. 5/72 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 168 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-11-21 22:24:18,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 75 transitions, 171 flow [2023-11-21 22:24:18,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 71 transitions, 160 flow [2023-11-21 22:24:18,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:24:18,059 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;@524fb199, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:24:18,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-21 22:24:18,064 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:24:18,064 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-11-21 22:24:18,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:24:18,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:18,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-21 22:24:18,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] === [2023-11-21 22:24:18,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:18,073 INFO L85 PathProgramCache]: Analyzing trace with hash 918822, now seen corresponding path program 1 times [2023-11-21 22:24:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:18,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379200177] [2023-11-21 22:24:18,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:18,088 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 22:24:18,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:18,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:18,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:18,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:24:18,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:18,309 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 22:24:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,336 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 22:24:18,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,357 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 22:24:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-21 22:24:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,385 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 22:24:18,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,391 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 22:24:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,408 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 22:24:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,427 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 22:24:18,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-21 22:24:18,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,456 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 22:24:18,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,466 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 22:24:18,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,472 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 22:24:18,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,485 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 22:24:18,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,490 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 22:24:18,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-21 22:24:18,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,523 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 22:24:18,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,531 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 22:24:18,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,540 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 22:24:18,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-21 22:24:18,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,574 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 22:24:18,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-21 22:24:18,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-11-21 22:24:18,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-21 22:24:18,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:18,652 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 22:24:18,661 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 22:24:18,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:18,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:18,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379200177] [2023-11-21 22:24:18,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379200177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:18,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:18,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:24:18,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841341038] [2023-11-21 22:24:18,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:18,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:18,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:18,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:18,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-21 22:24:18,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 22:24:18,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:18,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-21 22:24:18,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:20,248 INFO L124 PetriNetUnfolderBase]: 2971/4787 cut-off events. [2023-11-21 22:24:20,248 INFO L125 PetriNetUnfolderBase]: For 294/296 co-relation queries the response was YES. [2023-11-21 22:24:20,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9229 conditions, 4787 events. 2971/4787 cut-off events. For 294/296 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 32504 event pairs, 2534 based on Foata normal form. 1/2744 useless extension candidates. Maximal degree in co-relation 8662. Up to 4213 conditions per place. [2023-11-21 22:24:20,312 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 39 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2023-11-21 22:24:20,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 234 flow [2023-11-21 22:24:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:20,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2023-11-21 22:24:20,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5955555555555555 [2023-11-21 22:24:20,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 134 transitions. [2023-11-21 22:24:20,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 134 transitions. [2023-11-21 22:24:20,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:20,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 134 transitions. [2023-11-21 22:24:20,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 22:24:20,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 22:24:20,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 22:24:20,346 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 160 flow. Second operand 3 states and 134 transitions. [2023-11-21 22:24:20,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 234 flow [2023-11-21 22:24:20,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 67 transitions, 222 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:24:20,367 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 144 flow [2023-11-21 22:24:20,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2023-11-21 22:24:20,373 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2023-11-21 22:24:20,373 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 144 flow [2023-11-21 22:24:20,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 22:24:20,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:20,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-21 22:24:20,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:20,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:20,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] === [2023-11-21 22:24:20,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash 918823, now seen corresponding path program 1 times [2023-11-21 22:24:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:20,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154755340] [2023-11-21 22:24:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:20,584 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 22:24:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:20,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:20,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:20,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:24:20,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:20,736 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 13 treesize of output 7 [2023-11-21 22:24:20,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,751 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 8 treesize of output 1 [2023-11-21 22:24:20,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,808 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 13 treesize of output 1 [2023-11-21 22:24:20,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,830 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 13 treesize of output 1 [2023-11-21 22:24:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,839 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 8 treesize of output 1 [2023-11-21 22:24:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,854 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 8 treesize of output 1 [2023-11-21 22:24:20,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,867 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 13 treesize of output 1 [2023-11-21 22:24:20,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,888 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 13 treesize of output 1 [2023-11-21 22:24:20,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:20,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,956 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 13 treesize of output 1 [2023-11-21 22:24:20,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,965 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 8 treesize of output 1 [2023-11-21 22:24:20,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,982 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 13 treesize of output 1 [2023-11-21 22:24:20,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:20,990 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 8 treesize of output 1 [2023-11-21 22:24:21,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,001 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 8 treesize of output 1 [2023-11-21 22:24:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,013 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 13 treesize of output 1 [2023-11-21 22:24:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:21,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,050 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 13 treesize of output 1 [2023-11-21 22:24:21,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-21 22:24:21,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:21,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,152 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 13 treesize of output 1 [2023-11-21 22:24:21,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:21,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:21,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:21,225 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 13 treesize of output 1 [2023-11-21 22:24:21,331 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 22:24:21,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:21,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:21,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154755340] [2023-11-21 22:24:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154755340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:21,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:21,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:21,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551729611] [2023-11-21 22:24:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:21,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:24:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:24:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:24:21,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-21 22:24:21,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 22:24:21,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:21,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-21 22:24:21,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:23,118 INFO L124 PetriNetUnfolderBase]: 2973/4793 cut-off events. [2023-11-21 22:24:23,119 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2023-11-21 22:24:23,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9098 conditions, 4793 events. 2973/4793 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 32606 event pairs, 2534 based on Foata normal form. 0/2747 useless extension candidates. Maximal degree in co-relation 9062. Up to 4222 conditions per place. [2023-11-21 22:24:23,167 INFO L140 encePairwiseOnDemand]: 66/75 looper letters, 42 selfloop transitions, 7 changer transitions 0/73 dead transitions. [2023-11-21 22:24:23,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 256 flow [2023-11-21 22:24:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:24:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:24:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 171 transitions. [2023-11-21 22:24:23,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.57 [2023-11-21 22:24:23,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 171 transitions. [2023-11-21 22:24:23,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 171 transitions. [2023-11-21 22:24:23,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:23,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 171 transitions. [2023-11-21 22:24:23,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 22:24:23,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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 22:24:23,176 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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 22:24:23,176 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 144 flow. Second operand 4 states and 171 transitions. [2023-11-21 22:24:23,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 256 flow [2023-11-21 22:24:23,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:23,180 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 196 flow [2023-11-21 22:24:23,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2023-11-21 22:24:23,181 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-11-21 22:24:23,181 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 196 flow [2023-11-21 22:24:23,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 22:24:23,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:23,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-21 22:24:23,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:23,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:23,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] === [2023-11-21 22:24:23,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:23,385 INFO L85 PathProgramCache]: Analyzing trace with hash 28487250, now seen corresponding path program 1 times [2023-11-21 22:24:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:23,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581738762] [2023-11-21 22:24:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:23,386 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 22:24:23,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:23,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:23,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:23,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:24:23,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:23,603 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 22:24:23,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:23,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581738762] [2023-11-21 22:24:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581738762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:23,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:23,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:24:23,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433278170] [2023-11-21 22:24:23,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:23,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:24:23,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:24:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:24:23,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 75 [2023-11-21 22:24:23,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 22:24:23,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:23,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 75 [2023-11-21 22:24:23,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:24,858 INFO L124 PetriNetUnfolderBase]: 2971/4792 cut-off events. [2023-11-21 22:24:24,858 INFO L125 PetriNetUnfolderBase]: For 74/76 co-relation queries the response was YES. [2023-11-21 22:24:24,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9113 conditions, 4792 events. 2971/4792 cut-off events. For 74/76 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 32617 event pairs, 2534 based on Foata normal form. 3/2752 useless extension candidates. Maximal degree in co-relation 9073. Up to 4219 conditions per place. [2023-11-21 22:24:24,911 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 41 selfloop transitions, 4 changer transitions 1/72 dead transitions. [2023-11-21 22:24:24,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 282 flow [2023-11-21 22:24:24,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:24:24,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:24:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2023-11-21 22:24:24,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.59 [2023-11-21 22:24:24,914 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 177 transitions. [2023-11-21 22:24:24,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 177 transitions. [2023-11-21 22:24:24,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:24,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 177 transitions. [2023-11-21 22:24:24,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 22:24:24,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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 22:24:24,918 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 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 22:24:24,918 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 196 flow. Second operand 4 states and 177 transitions. [2023-11-21 22:24:24,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 282 flow [2023-11-21 22:24:24,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:24:24,922 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 196 flow [2023-11-21 22:24:24,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2023-11-21 22:24:24,923 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2023-11-21 22:24:24,924 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 196 flow [2023-11-21 22:24:24,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 22:24:24,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:24,924 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2023-11-21 22:24:24,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:25,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:25,128 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] === [2023-11-21 22:24:25,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:25,129 INFO L85 PathProgramCache]: Analyzing trace with hash 883018801, now seen corresponding path program 1 times [2023-11-21 22:24:25,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:25,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669953994] [2023-11-21 22:24:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:25,130 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 22:24:25,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:25,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:25,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:25,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 22:24:25,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:25,266 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 8 treesize of output 7 [2023-11-21 22:24:25,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,282 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 13 treesize of output 1 [2023-11-21 22:24:25,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,297 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 13 treesize of output 1 [2023-11-21 22:24:25,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:25,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,338 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 13 treesize of output 1 [2023-11-21 22:24:25,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,348 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 8 treesize of output 1 [2023-11-21 22:24:25,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:25,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-21 22:24:25,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,439 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 13 treesize of output 1 [2023-11-21 22:24:25,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:25,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,478 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 13 treesize of output 1 [2023-11-21 22:24:25,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:25,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:25,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,548 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 13 treesize of output 1 [2023-11-21 22:24:25,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,559 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 8 treesize of output 1 [2023-11-21 22:24:25,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,571 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 13 treesize of output 1 [2023-11-21 22:24:25,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,585 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 13 treesize of output 1 [2023-11-21 22:24:25,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,594 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 8 treesize of output 1 [2023-11-21 22:24:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,612 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 13 treesize of output 1 [2023-11-21 22:24:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,621 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 8 treesize of output 1 [2023-11-21 22:24:25,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-21 22:24:25,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,663 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 13 treesize of output 1 [2023-11-21 22:24:25,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,678 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 13 treesize of output 1 [2023-11-21 22:24:25,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:25,687 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 8 treesize of output 1 [2023-11-21 22:24:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:25,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:24:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:26,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669953994] [2023-11-21 22:24:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669953994] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:24:26,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:24:26,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-11-21 22:24:26,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299261882] [2023-11-21 22:24:26,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:24:26,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:24:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:26,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:24:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:24:27,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-21 22:24:27,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 196 flow. Second operand has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 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 22:24:27,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:27,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-21 22:24:27,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:30,338 INFO L124 PetriNetUnfolderBase]: 2977/4809 cut-off events. [2023-11-21 22:24:30,338 INFO L125 PetriNetUnfolderBase]: For 85/87 co-relation queries the response was YES. [2023-11-21 22:24:30,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9179 conditions, 4809 events. 2977/4809 cut-off events. For 85/87 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 32690 event pairs, 2534 based on Foata normal form. 0/2761 useless extension candidates. Maximal degree in co-relation 9106. Up to 4224 conditions per place. [2023-11-21 22:24:30,384 INFO L140 encePairwiseOnDemand]: 66/75 looper letters, 41 selfloop transitions, 24 changer transitions 0/89 dead transitions. [2023-11-21 22:24:30,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 89 transitions, 410 flow [2023-11-21 22:24:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:24:30,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 22:24:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 371 transitions. [2023-11-21 22:24:30,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49466666666666664 [2023-11-21 22:24:30,389 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 371 transitions. [2023-11-21 22:24:30,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 371 transitions. [2023-11-21 22:24:30,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:30,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 371 transitions. [2023-11-21 22:24:30,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 37.1) internal successors, (371), 10 states have internal predecessors, (371), 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 22:24:30,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 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 22:24:30,396 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 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 22:24:30,396 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 196 flow. Second operand 10 states and 371 transitions. [2023-11-21 22:24:30,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 89 transitions, 410 flow [2023-11-21 22:24:30,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 387 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-21 22:24:30,401 INFO L231 Difference]: Finished difference. Result has 83 places, 89 transitions, 339 flow [2023-11-21 22:24:30,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=339, PETRI_PLACES=83, PETRI_TRANSITIONS=89} [2023-11-21 22:24:30,403 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 7 predicate places. [2023-11-21 22:24:30,403 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 89 transitions, 339 flow [2023-11-21 22:24:30,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 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 22:24:30,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:30,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:30,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:30,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:30,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] === [2023-11-21 22:24:30,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash -657972761, now seen corresponding path program 1 times [2023-11-21 22:24:30,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:30,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156507532] [2023-11-21 22:24:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:30,612 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 22:24:30,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:30,618 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:30,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:30,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 22:24:30,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:30,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:30,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:30,904 INFO L349 Elim1Store]: treesize reduction 44, result has 25.4 percent of original size [2023-11-21 22:24:30,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 29 [2023-11-21 22:24:30,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:31,029 INFO L349 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2023-11-21 22:24:31,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 37 [2023-11-21 22:24:31,384 INFO L349 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2023-11-21 22:24:31,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 75 [2023-11-21 22:24:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:24:32,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:32,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:24:32,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156507532] [2023-11-21 22:24:32,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156507532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:32,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:32,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:24:32,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408073434] [2023-11-21 22:24:32,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:32,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:24:32,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:32,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:32,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2023-11-21 22:24:32,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 89 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 22:24:32,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:32,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2023-11-21 22:24:32,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:33,417 INFO L124 PetriNetUnfolderBase]: 2977/4744 cut-off events. [2023-11-21 22:24:33,417 INFO L125 PetriNetUnfolderBase]: For 94/96 co-relation queries the response was YES. [2023-11-21 22:24:33,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9142 conditions, 4744 events. 2977/4744 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 31453 event pairs, 2534 based on Foata normal form. 513/3279 useless extension candidates. Maximal degree in co-relation 9081. Up to 4240 conditions per place. [2023-11-21 22:24:33,458 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 62 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2023-11-21 22:24:33,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 87 transitions, 461 flow [2023-11-21 22:24:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2023-11-21 22:24:33,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911111111111111 [2023-11-21 22:24:33,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 133 transitions. [2023-11-21 22:24:33,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 133 transitions. [2023-11-21 22:24:33,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:33,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 133 transitions. [2023-11-21 22:24:33,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 22:24:33,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 22:24:33,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 22:24:33,465 INFO L175 Difference]: Start difference. First operand has 83 places, 89 transitions, 339 flow. Second operand 3 states and 133 transitions. [2023-11-21 22:24:33,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 87 transitions, 461 flow [2023-11-21 22:24:33,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 87 transitions, 400 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-11-21 22:24:33,470 INFO L231 Difference]: Finished difference. Result has 79 places, 87 transitions, 276 flow [2023-11-21 22:24:33,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=79, PETRI_TRANSITIONS=87} [2023-11-21 22:24:33,473 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 3 predicate places. [2023-11-21 22:24:33,474 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 87 transitions, 276 flow [2023-11-21 22:24:33,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 22:24:33,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:33,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:33,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:33,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:33,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 42 more)] === [2023-11-21 22:24:33,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash -657972760, now seen corresponding path program 1 times [2023-11-21 22:24:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284089002] [2023-11-21 22:24:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:33,678 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 22:24:33,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:33,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:33,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c37a175-96a8-48b4-ae6a-8ad7458dc49d/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 22:24:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:33,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 22:24:33,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:33,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2023-11-21 22:24:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-21 22:24:33,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:33,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-21 22:24:34,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-21 22:24:34,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2023-11-21 22:24:34,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-21 22:24:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,141 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 13 [2023-11-21 22:24:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,162 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 5 treesize of output 3 [2023-11-21 22:24:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,199 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 13 [2023-11-21 22:24:34,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,217 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 5 treesize of output 3 [2023-11-21 22:24:34,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:24:34,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2023-11-21 22:24:34,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-21 22:24:36,316 INFO L349 Elim1Store]: treesize reduction 64, result has 65.6 percent of original size [2023-11-21 22:24:36,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 190