./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:53:24,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:53:25,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 00:53:25,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:53:25,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:53:25,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:53:25,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:53:25,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:53:25,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:53:25,098 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:53:25,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:53:25,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:53:25,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:53:25,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:53:25,100 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:53:25,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:53:25,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:53:25,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:53:25,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:53:25,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:53:25,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:53:25,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:53:25,104 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 00:53:25,105 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 00:53:25,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:53:25,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:53:25,106 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:53:25,106 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:53:25,106 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:53:25,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:53:25,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:53:25,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:53:25,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:53:25,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:53:25,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:53:25,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:53:25,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:53:25,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:53:25,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:53:25,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:53:25,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:53:25,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:53:25,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:53:25,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:53:25,110 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_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2023-11-29 00:53:25,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:53:25,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:53:25,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:53:25,378 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:53:25,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:53:25,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-29 00:53:28,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:53:28,364 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:53:28,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-29 00:53:28,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data/51bea6c61/99cd0d5742de45c08ad5219efa5811c6/FLAGf191756fe [2023-11-29 00:53:28,398 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data/51bea6c61/99cd0d5742de45c08ad5219efa5811c6 [2023-11-29 00:53:28,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:53:28,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:53:28,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:53:28,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:53:28,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:53:28,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:53:28" (1/1) ... [2023-11-29 00:53:28,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df3859a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:28, skipping insertion in model container [2023-11-29 00:53:28,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:53:28" (1/1) ... [2023-11-29 00:53:28,493 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:53:28,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:53:28,979 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) [2023-11-29 00:53:28,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@88ba967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:28, skipping insertion in model container [2023-11-29 00:53:28,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:53:28,980 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 00:53:28,981 INFO L158 Benchmark]: Toolchain (without parser) took 579.01ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 143.8MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 00:53:28,982 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:53:28,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.71ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 143.8MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 00:53:28,984 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.71ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 143.8MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:53:30,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:53:30,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 00:53:30,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:53:30,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:53:30,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:53:30,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:53:30,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:53:30,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:53:30,783 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:53:30,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:53:30,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:53:30,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:53:30,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:53:30,786 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:53:30,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:53:30,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:53:30,788 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:53:30,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:53:30,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:53:30,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:53:30,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:53:30,790 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 00:53:30,791 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 00:53:30,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:53:30,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:53:30,792 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:53:30,793 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:53:30,793 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:53:30,793 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:53:30,794 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:53:30,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:53:30,794 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:53:30,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:53:30,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:53:30,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:53:30,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:53:30,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:53:30,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:53:30,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:53:30,797 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:53:30,797 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:53:30,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:53:30,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:53:30,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:53:30,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:53:30,798 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:53:30,798 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_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2023-11-29 00:53:31,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:53:31,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:53:31,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:53:31,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:53:31,105 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:53:31,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-29 00:53:33,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:53:34,181 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:53:34,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-29 00:53:34,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data/f983df58a/c98fe9d5449b46999df3844071620513/FLAG7295cc9c5 [2023-11-29 00:53:34,214 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/data/f983df58a/c98fe9d5449b46999df3844071620513 [2023-11-29 00:53:34,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:53:34,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:53:34,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:53:34,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:53:34,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:53:34,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:53:34" (1/1) ... [2023-11-29 00:53:34,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdf36d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:34, skipping insertion in model container [2023-11-29 00:53:34,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:53:34" (1/1) ... [2023-11-29 00:53:34,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:53:34,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:53:34,846 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 00:53:34,861 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:53:34,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:53:34,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:53:35,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:53:35,060 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:53:35,067 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:53:35,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35 WrapperNode [2023-11-29 00:53:35,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:53:35,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:53:35,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:53:35,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:53:35,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,173 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1160 [2023-11-29 00:53:35,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:53:35,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:53:35,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:53:35,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:53:35,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,201 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,295 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [2, 5, 34, 268]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 1, 4, 58]. [2023-11-29 00:53:35,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:53:35,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:53:35,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:53:35,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:53:35,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (1/1) ... [2023-11-29 00:53:35,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:53:35,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:53:35,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:53:35,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:53:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 00:53:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 00:53:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 00:53:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 00:53:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 00:53:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 00:53:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 00:53:35,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 00:53:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 00:53:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 00:53:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:53:35,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:53:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:53:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:53:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:53:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 00:53:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:53:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:53:35,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:53:35,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 00:53:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-29 00:53:35,439 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-29 00:53:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:53:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:53:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 00:53:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 00:53:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 00:53:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:53:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:53:35,687 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:53:35,689 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:53:44,944 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:53:44,981 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:53:44,981 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-11-29 00:53:44,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:53:44 BoogieIcfgContainer [2023-11-29 00:53:44,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:53:44,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:53:44,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:53:44,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:53:44,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:53:34" (1/3) ... [2023-11-29 00:53:44,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a3f30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:53:44, skipping insertion in model container [2023-11-29 00:53:44,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:53:35" (2/3) ... [2023-11-29 00:53:44,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a3f30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:53:44, skipping insertion in model container [2023-11-29 00:53:44,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:53:44" (3/3) ... [2023-11-29 00:53:44,989 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2023-11-29 00:53:45,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:53:45,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:53:45,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:53:45,051 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;@4bb8bafd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:53:45,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:53:45,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 233 states have (on average 1.6824034334763949) internal successors, (392), 252 states have internal predecessors, (392), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 00:53:45,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 00:53:45,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:45,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:45,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:45,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1422517794, now seen corresponding path program 1 times [2023-11-29 00:53:45,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:45,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526723096] [2023-11-29 00:53:45,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:45,084 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 [2023-11-29 00:53:45,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:45,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:45,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:45,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:53:45,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:45,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:45,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:45,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526723096] [2023-11-29 00:53:45,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526723096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:45,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:45,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:53:45,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481439275] [2023-11-29 00:53:45,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:45,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:53:45,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:53:45,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:53:45,379 INFO L87 Difference]: Start difference. First operand has 262 states, 233 states have (on average 1.6824034334763949) internal successors, (392), 252 states have internal predecessors, (392), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:45,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:45,453 INFO L93 Difference]: Finished difference Result 260 states and 356 transitions. [2023-11-29 00:53:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:53:45,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 00:53:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:45,468 INFO L225 Difference]: With dead ends: 260 [2023-11-29 00:53:45,468 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 00:53:45,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:53:45,473 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:45,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:53:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 00:53:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2023-11-29 00:53:45,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 232 states have (on average 1.3491379310344827) internal successors, (313), 249 states have internal predecessors, (313), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 00:53:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 355 transitions. [2023-11-29 00:53:45,533 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 355 transitions. Word has length 10 [2023-11-29 00:53:45,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:45,533 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 355 transitions. [2023-11-29 00:53:45,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:45,534 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 355 transitions. [2023-11-29 00:53:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 00:53:45,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:45,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:45,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:45,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:45,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:45,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash -135441944, now seen corresponding path program 1 times [2023-11-29 00:53:45,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:45,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672748351] [2023-11-29 00:53:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:45,740 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 [2023-11-29 00:53:45,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:45,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:45,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:45,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:53:45,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:46,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:46,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:46,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:46,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672748351] [2023-11-29 00:53:46,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672748351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:46,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:46,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:53:46,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870435787] [2023-11-29 00:53:46,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:46,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:53:46,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:46,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:53:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:53:46,069 INFO L87 Difference]: Start difference. First operand 259 states and 355 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:47,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:47,206 INFO L93 Difference]: Finished difference Result 403 states and 544 transitions. [2023-11-29 00:53:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:53:47,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 00:53:47,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:47,214 INFO L225 Difference]: With dead ends: 403 [2023-11-29 00:53:47,214 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 00:53:47,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:53:47,215 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 182 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:47,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 638 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:53:47,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 00:53:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 371. [2023-11-29 00:53:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 343 states have (on average 1.338192419825073) internal successors, (459), 360 states have internal predecessors, (459), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:53:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 503 transitions. [2023-11-29 00:53:47,239 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 503 transitions. Word has length 12 [2023-11-29 00:53:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:47,240 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 503 transitions. [2023-11-29 00:53:47,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 503 transitions. [2023-11-29 00:53:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 00:53:47,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:47,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:47,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 00:53:47,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:47,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:47,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:47,442 INFO L85 PathProgramCache]: Analyzing trace with hash -133594902, now seen corresponding path program 1 times [2023-11-29 00:53:47,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:47,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441644605] [2023-11-29 00:53:47,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:47,443 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 [2023-11-29 00:53:47,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:47,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:47,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:47,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:53:47,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:47,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:53:47,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:53:47,674 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 00:53:47,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 00:53:47,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:53:47,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 00:53:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:47,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:47,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:47,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441644605] [2023-11-29 00:53:47,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441644605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:47,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:47,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:53:47,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081058337] [2023-11-29 00:53:47,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:47,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:53:47,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:47,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:53:47,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:53:47,786 INFO L87 Difference]: Start difference. First operand 371 states and 503 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:48,399 INFO L93 Difference]: Finished difference Result 567 states and 763 transitions. [2023-11-29 00:53:48,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:53:48,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 00:53:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:48,404 INFO L225 Difference]: With dead ends: 567 [2023-11-29 00:53:48,404 INFO L226 Difference]: Without dead ends: 567 [2023-11-29 00:53:48,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:53:48,406 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 262 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:48,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 986 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:53:48,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-29 00:53:48,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 370. [2023-11-29 00:53:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.3362573099415205) internal successors, (457), 359 states have internal predecessors, (457), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:53:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 501 transitions. [2023-11-29 00:53:48,432 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 501 transitions. Word has length 12 [2023-11-29 00:53:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:48,432 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 501 transitions. [2023-11-29 00:53:48,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 501 transitions. [2023-11-29 00:53:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:53:48,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:48,436 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:48,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 00:53:48,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:48,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:48,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1570944541, now seen corresponding path program 1 times [2023-11-29 00:53:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:48,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842343576] [2023-11-29 00:53:48,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:48,639 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 [2023-11-29 00:53:48,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:48,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:48,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:49,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:53:49,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:49,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:53:49,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:49,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:49,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842343576] [2023-11-29 00:53:49,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842343576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:49,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:49,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:53:49,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667444907] [2023-11-29 00:53:49,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:49,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:53:49,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:49,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:53:49,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:53:49,235 INFO L87 Difference]: Start difference. First operand 370 states and 501 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:53:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:49,399 INFO L93 Difference]: Finished difference Result 378 states and 493 transitions. [2023-11-29 00:53:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:53:49,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2023-11-29 00:53:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:49,402 INFO L225 Difference]: With dead ends: 378 [2023-11-29 00:53:49,402 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 00:53:49,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:53:49,403 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 36 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:49,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 939 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:53:49,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 00:53:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2023-11-29 00:53:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 348 states have (on average 1.2844827586206897) internal successors, (447), 365 states have internal predecessors, (447), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:53:49,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 491 transitions. [2023-11-29 00:53:49,419 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 491 transitions. Word has length 79 [2023-11-29 00:53:49,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:49,419 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 491 transitions. [2023-11-29 00:53:49,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:53:49,420 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 491 transitions. [2023-11-29 00:53:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:53:49,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:49,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:49,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 00:53:49,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:49,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:49,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash 86070639, now seen corresponding path program 1 times [2023-11-29 00:53:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:49,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240242086] [2023-11-29 00:53:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:49,631 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 [2023-11-29 00:53:49,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:49,632 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:49,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:50,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:53:50,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:50,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:50,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:50,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240242086] [2023-11-29 00:53:50,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240242086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:50,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:50,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:53:50,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061930171] [2023-11-29 00:53:50,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:50,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:53:50,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:50,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:53:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:53:50,106 INFO L87 Difference]: Start difference. First operand 376 states and 491 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:53:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:50,201 INFO L93 Difference]: Finished difference Result 378 states and 494 transitions. [2023-11-29 00:53:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:53:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 79 [2023-11-29 00:53:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:50,205 INFO L225 Difference]: With dead ends: 378 [2023-11-29 00:53:50,205 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 00:53:50,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:53:50,206 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 1 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:50,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1007 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:53:50,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 00:53:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2023-11-29 00:53:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 349 states have (on average 1.2865329512893984) internal successors, (449), 367 states have internal predecessors, (449), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:53:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 494 transitions. [2023-11-29 00:53:50,221 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 494 transitions. Word has length 79 [2023-11-29 00:53:50,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:50,221 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 494 transitions. [2023-11-29 00:53:50,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:53:50,222 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 494 transitions. [2023-11-29 00:53:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 00:53:50,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:50,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:50,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:50,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:50,430 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:50,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:50,430 INFO L85 PathProgramCache]: Analyzing trace with hash 703638389, now seen corresponding path program 1 times [2023-11-29 00:53:50,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:50,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834672172] [2023-11-29 00:53:50,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:50,431 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 [2023-11-29 00:53:50,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:50,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:50,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:50,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:53:50,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:53:50,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:53:51,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834672172] [2023-11-29 00:53:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834672172] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:53:51,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:53:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 00:53:51,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461731748] [2023-11-29 00:53:51,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:51,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:53:51,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:53:51,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:53:51,004 INFO L87 Difference]: Start difference. First operand 378 states and 494 transitions. Second operand has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:53:51,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:51,307 INFO L93 Difference]: Finished difference Result 387 states and 508 transitions. [2023-11-29 00:53:51,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:53:51,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 81 [2023-11-29 00:53:51,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:51,312 INFO L225 Difference]: With dead ends: 387 [2023-11-29 00:53:51,312 INFO L226 Difference]: Without dead ends: 387 [2023-11-29 00:53:51,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:53:51,313 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 6 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:51,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1672 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:53:51,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-29 00:53:51,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2023-11-29 00:53:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 356 states have (on average 1.297752808988764) internal successors, (462), 374 states have internal predecessors, (462), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:53:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 507 transitions. [2023-11-29 00:53:51,327 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 507 transitions. Word has length 81 [2023-11-29 00:53:51,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:51,328 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 507 transitions. [2023-11-29 00:53:51,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:53:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 507 transitions. [2023-11-29 00:53:51,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 00:53:51,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:51,330 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:51,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 00:53:51,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:51,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:51,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:51,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1394336817, now seen corresponding path program 2 times [2023-11-29 00:53:51,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:51,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215777131] [2023-11-29 00:53:51,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:53:51,540 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 [2023-11-29 00:53:51,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:51,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:51,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 00:53:53,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:53:53,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:53:53,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:53:53,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 00:53:53,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 00:53:53,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:53,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215777131] [2023-11-29 00:53:53,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215777131] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:53:53,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:53:53,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 00:53:53,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438243701] [2023-11-29 00:53:53,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:53,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:53:53,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:53,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:53:53,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:53:53,543 INFO L87 Difference]: Start difference. First operand 386 states and 507 transitions. Second operand has 10 states, 8 states have (on average 9.875) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:53:53,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:53,865 INFO L93 Difference]: Finished difference Result 393 states and 518 transitions. [2023-11-29 00:53:53,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:53:53,865 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.875) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2023-11-29 00:53:53,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:53,868 INFO L225 Difference]: With dead ends: 393 [2023-11-29 00:53:53,868 INFO L226 Difference]: Without dead ends: 393 [2023-11-29 00:53:53,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:53:53,870 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 12 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:53,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2003 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:53:53,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-29 00:53:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 390. [2023-11-29 00:53:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 360 states have (on average 1.3055555555555556) internal successors, (470), 378 states have internal predecessors, (470), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:53:53,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 515 transitions. [2023-11-29 00:53:53,881 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 515 transitions. Word has length 85 [2023-11-29 00:53:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:53,881 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 515 transitions. [2023-11-29 00:53:53,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.875) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:53:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 515 transitions. [2023-11-29 00:53:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 00:53:53,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:53,883 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:53,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:53:54,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:54,084 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:54,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1210509583, now seen corresponding path program 3 times [2023-11-29 00:53:54,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:54,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543572447] [2023-11-29 00:53:54,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:53:54,085 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 [2023-11-29 00:53:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:54,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:54,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 00:53:56,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 00:53:56,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:53:56,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:53:56,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 00:53:56,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 00:53:57,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:57,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543572447] [2023-11-29 00:53:57,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543572447] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:53:57,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:53:57,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 00:53:57,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731003634] [2023-11-29 00:53:57,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:57,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:53:57,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:53:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:53:57,141 INFO L87 Difference]: Start difference. First operand 390 states and 515 transitions. Second operand has 18 states, 16 states have (on average 5.4375) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:53:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:58,318 INFO L93 Difference]: Finished difference Result 411 states and 545 transitions. [2023-11-29 00:53:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 00:53:58,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.4375) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2023-11-29 00:53:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:58,322 INFO L225 Difference]: With dead ends: 411 [2023-11-29 00:53:58,322 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 00:53:58,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=369, Invalid=687, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 00:53:58,324 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 24 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:58,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2991 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:53:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 00:53:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2023-11-29 00:53:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 371 states have (on average 1.320754716981132) internal successors, (490), 389 states have internal predecessors, (490), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:53:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 535 transitions. [2023-11-29 00:53:58,333 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 535 transitions. Word has length 89 [2023-11-29 00:53:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:58,333 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 535 transitions. [2023-11-29 00:53:58,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.4375) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:53:58,334 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 535 transitions. [2023-11-29 00:53:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 00:53:58,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:58,335 INFO L195 NwaCegarLoop]: trace histogram [18, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:58,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 00:53:58,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:53:58,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:53:58,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash -704470129, now seen corresponding path program 4 times [2023-11-29 00:53:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:58,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405703759] [2023-11-29 00:53:58,537 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:53:58,537 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 [2023-11-29 00:53:58,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:58,538 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:53:58,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 00:53:59,114 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:53:59,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:53:59,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:53:59,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 77 proven. 10 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 00:53:59,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 00:53:59,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:59,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405703759] [2023-11-29 00:53:59,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405703759] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:53:59,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:53:59,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 00:53:59,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192669086] [2023-11-29 00:53:59,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:59,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:53:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:59,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:53:59,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:53:59,411 INFO L87 Difference]: Start difference. First operand 401 states and 535 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:54:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:00,198 INFO L93 Difference]: Finished difference Result 411 states and 546 transitions. [2023-11-29 00:54:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:54:00,198 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-29 00:54:00,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:00,201 INFO L225 Difference]: With dead ends: 411 [2023-11-29 00:54:00,201 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 00:54:00,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:54:00,203 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 13 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:00,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2010 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:54:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 00:54:00,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 404. [2023-11-29 00:54:00,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 374 states have (on average 1.3128342245989304) internal successors, (491), 392 states have internal predecessors, (491), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:54:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 536 transitions. [2023-11-29 00:54:00,216 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 536 transitions. Word has length 97 [2023-11-29 00:54:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:00,217 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 536 transitions. [2023-11-29 00:54:00,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:54:00,217 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 536 transitions. [2023-11-29 00:54:00,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 00:54:00,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:00,218 INFO L195 NwaCegarLoop]: trace histogram [24, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:00,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-29 00:54:00,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:54:00,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:54:00,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1830501679, now seen corresponding path program 5 times [2023-11-29 00:54:00,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:54:00,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759718460] [2023-11-29 00:54:00,420 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:54:00,420 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 [2023-11-29 00:54:00,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:54:00,421 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:54:00,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 00:54:01,868 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-11-29 00:54:01,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:54:01,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:54:01,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 167 proven. 55 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 00:54:02,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:54:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 00:54:02,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:54:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759718460] [2023-11-29 00:54:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759718460] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:54:02,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:54:02,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 00:54:02,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15827499] [2023-11-29 00:54:02,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:54:02,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:54:02,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:54:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:54:02,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:54:02,691 INFO L87 Difference]: Start difference. First operand 404 states and 536 transitions. Second operand has 26 states, 24 states have (on average 4.083333333333333) internal successors, (98), 26 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:54:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:05,065 INFO L93 Difference]: Finished difference Result 428 states and 570 transitions. [2023-11-29 00:54:05,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 00:54:05,065 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.083333333333333) internal successors, (98), 26 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2023-11-29 00:54:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:05,068 INFO L225 Difference]: With dead ends: 428 [2023-11-29 00:54:05,068 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 00:54:05,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 00:54:05,070 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 24 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:05,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4679 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 00:54:05,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 00:54:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 416. [2023-11-29 00:54:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 386 states have (on average 1.3031088082901554) internal successors, (503), 404 states have internal predecessors, (503), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:54:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 548 transitions. [2023-11-29 00:54:05,083 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 548 transitions. Word has length 103 [2023-11-29 00:54:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:05,083 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 548 transitions. [2023-11-29 00:54:05,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.083333333333333) internal successors, (98), 26 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:54:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 548 transitions. [2023-11-29 00:54:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 00:54:05,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:05,085 INFO L195 NwaCegarLoop]: trace histogram [36, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:05,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 00:54:05,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:54:05,286 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:54:05,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:05,286 INFO L85 PathProgramCache]: Analyzing trace with hash 258033775, now seen corresponding path program 6 times [2023-11-29 00:54:05,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:54:05,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841943046] [2023-11-29 00:54:05,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:54:05,287 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 [2023-11-29 00:54:05,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:54:05,288 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:54:05,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 00:54:09,557 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2023-11-29 00:54:09,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:54:09,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:54:09,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 347 proven. 253 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 00:54:10,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:54:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 599 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 00:54:12,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:54:12,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841943046] [2023-11-29 00:54:12,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841943046] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:54:12,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:54:12,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 00:54:12,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985467759] [2023-11-29 00:54:12,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:54:12,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 00:54:12,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:54:12,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 00:54:12,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 00:54:12,425 INFO L87 Difference]: Start difference. First operand 416 states and 548 transitions. Second operand has 50 states, 48 states have (on average 2.5416666666666665) internal successors, (122), 50 states have internal predecessors, (122), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:54:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:23,455 INFO L93 Difference]: Finished difference Result 472 states and 642 transitions. [2023-11-29 00:54:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-11-29 00:54:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.5416666666666665) internal successors, (122), 50 states have internal predecessors, (122), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 115 [2023-11-29 00:54:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:23,459 INFO L225 Difference]: With dead ends: 472 [2023-11-29 00:54:23,459 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 00:54:23,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=2906, Invalid=6214, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 00:54:23,463 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 49 mSDsluCounter, 7660 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 7996 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:23,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 7996 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 00:54:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 00:54:23,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 449. [2023-11-29 00:54:23,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 419 states have (on average 1.3007159904534606) internal successors, (545), 437 states have internal predecessors, (545), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:54:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 590 transitions. [2023-11-29 00:54:23,478 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 590 transitions. Word has length 115 [2023-11-29 00:54:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:23,478 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 590 transitions. [2023-11-29 00:54:23,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.5416666666666665) internal successors, (122), 50 states have internal predecessors, (122), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:54:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 590 transitions. [2023-11-29 00:54:23,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 00:54:23,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:23,480 INFO L195 NwaCegarLoop]: trace histogram [58, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:23,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 00:54:23,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:54:23,681 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:54:23,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:23,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1961183503, now seen corresponding path program 7 times [2023-11-29 00:54:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:54:23,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393744667] [2023-11-29 00:54:23,682 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 00:54:23,682 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 [2023-11-29 00:54:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:54:23,683 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:54:23,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (13)] Waiting until timeout for monitored process [2023-11-29 00:54:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:24,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:54:24,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1772 backedges. 676 proven. 105 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:54:24,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:54:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1772 backedges. 676 proven. 105 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:54:25,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:54:25,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393744667] [2023-11-29 00:54:25,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393744667] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:54:25,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:54:25,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-11-29 00:54:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234568541] [2023-11-29 00:54:25,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:54:25,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 00:54:25,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:54:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 00:54:25,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:54:25,709 INFO L87 Difference]: Start difference. First operand 449 states and 590 transitions. Second operand has 34 states, 32 states have (on average 3.21875) internal successors, (103), 34 states have internal predecessors, (103), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:54:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:29,194 INFO L93 Difference]: Finished difference Result 470 states and 618 transitions. [2023-11-29 00:54:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 00:54:29,195 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 3.21875) internal successors, (103), 34 states have internal predecessors, (103), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 137 [2023-11-29 00:54:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:29,197 INFO L225 Difference]: With dead ends: 470 [2023-11-29 00:54:29,197 INFO L226 Difference]: Without dead ends: 470 [2023-11-29 00:54:29,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1782, Invalid=4070, Unknown=0, NotChecked=0, Total=5852 [2023-11-29 00:54:29,200 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 36 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5667 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:29,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5667 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 00:54:29,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-29 00:54:29,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 456. [2023-11-29 00:54:29,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 426 states have (on average 1.312206572769953) internal successors, (559), 444 states have internal predecessors, (559), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:54:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 604 transitions. [2023-11-29 00:54:29,212 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 604 transitions. Word has length 137 [2023-11-29 00:54:29,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:29,213 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 604 transitions. [2023-11-29 00:54:29,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 3.21875) internal successors, (103), 34 states have internal predecessors, (103), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:54:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 604 transitions. [2023-11-29 00:54:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 00:54:29,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:29,214 INFO L195 NwaCegarLoop]: trace histogram [74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:29,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (13)] Forceful destruction successful, exit code 0 [2023-11-29 00:54:29,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:54:29,415 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:54:29,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:29,415 INFO L85 PathProgramCache]: Analyzing trace with hash -675660273, now seen corresponding path program 8 times [2023-11-29 00:54:29,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:54:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707833385] [2023-11-29 00:54:29,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:54:29,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:54:29,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:54:29,418 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:54:29,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Waiting until timeout for monitored process [2023-11-29 00:54:31,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:54:31,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:54:31,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 00:54:31,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1396 proven. 465 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:54:32,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:54:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1396 proven. 465 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:54:35,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:54:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707833385] [2023-11-29 00:54:35,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707833385] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:54:35,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:54:35,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2023-11-29 00:54:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419969311] [2023-11-29 00:54:35,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:54:35,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-29 00:54:35,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:54:35,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-29 00:54:35,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=3137, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 00:54:35,732 INFO L87 Difference]: Start difference. First operand 456 states and 604 transitions. Second operand has 66 states, 64 states have (on average 2.109375) internal successors, (135), 66 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:54:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:52,156 INFO L93 Difference]: Finished difference Result 517 states and 697 transitions. [2023-11-29 00:54:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-11-29 00:54:52,157 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 64 states have (on average 2.109375) internal successors, (135), 66 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2023-11-29 00:54:52,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:52,160 INFO L225 Difference]: With dead ends: 517 [2023-11-29 00:54:52,160 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 00:54:52,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5776 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=7091, Invalid=17089, Unknown=0, NotChecked=0, Total=24180 [2023-11-29 00:54:52,169 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 67 mSDsluCounter, 10325 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 10661 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:52,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 10661 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-29 00:54:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 00:54:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 488. [2023-11-29 00:54:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 458 states have (on average 1.3602620087336244) internal successors, (623), 476 states have internal predecessors, (623), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:54:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 668 transitions. [2023-11-29 00:54:52,181 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 668 transitions. Word has length 153 [2023-11-29 00:54:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:52,181 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 668 transitions. [2023-11-29 00:54:52,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 64 states have (on average 2.109375) internal successors, (135), 66 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:54:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 668 transitions. [2023-11-29 00:54:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 00:54:52,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:52,184 INFO L195 NwaCegarLoop]: trace histogram [106, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:52,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Forceful destruction successful, exit code 0 [2023-11-29 00:54:52,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:54:52,385 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:54:52,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:52,385 INFO L85 PathProgramCache]: Analyzing trace with hash 767961103, now seen corresponding path program 9 times [2023-11-29 00:54:52,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:54:52,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543331459] [2023-11-29 00:54:52,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:54:52,386 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 [2023-11-29 00:54:52,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:54:52,387 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:54:52,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (15)] Waiting until timeout for monitored process [2023-11-29 00:55:37,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2023-11-29 00:55:37,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:55:37,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-29 00:55:37,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:55:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 2836 proven. 1953 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:55:40,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:55:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 2836 proven. 1953 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:55:55,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:55:55,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543331459] [2023-11-29 00:55:55,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543331459] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:55:55,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:55:55,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 130 [2023-11-29 00:55:55,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540801001] [2023-11-29 00:55:55,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:55:55,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-29 00:55:55,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:55:55,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-29 00:55:55,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4353, Invalid=12417, Unknown=0, NotChecked=0, Total=16770 [2023-11-29 00:55:55,206 INFO L87 Difference]: Start difference. First operand 488 states and 668 transitions. Second operand has 130 states, 128 states have (on average 1.5546875) internal successors, (199), 130 states have internal predecessors, (199), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:57:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:57:38,493 INFO L93 Difference]: Finished difference Result 648 states and 907 transitions. [2023-11-29 00:57:38,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2023-11-29 00:57:38,494 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 128 states have (on average 1.5546875) internal successors, (199), 130 states have internal predecessors, (199), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 185 [2023-11-29 00:57:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:57:38,497 INFO L225 Difference]: With dead ends: 648 [2023-11-29 00:57:38,497 INFO L226 Difference]: Without dead ends: 646 [2023-11-29 00:57:38,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12032 ImplicationChecksByTransitivity, 94.7s TimeCoverageRelationStatistics Valid=20865, Invalid=44927, Unknown=0, NotChecked=0, Total=65792 [2023-11-29 00:57:38,506 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 148 mSDsluCounter, 21583 mSDsCounter, 0 mSdLazyCounter, 13666 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 21918 SdHoareTripleChecker+Invalid, 13760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 13666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:57:38,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 21918 Invalid, 13760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 13666 Invalid, 0 Unknown, 0 Unchecked, 22.7s Time] [2023-11-29 00:57:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-29 00:57:38,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 569. [2023-11-29 00:57:38,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 539 states have (on average 1.4526901669758812) internal successors, (783), 557 states have internal predecessors, (783), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 00:57:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 828 transitions. [2023-11-29 00:57:38,519 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 828 transitions. Word has length 185 [2023-11-29 00:57:38,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:57:38,519 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 828 transitions. [2023-11-29 00:57:38,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 128 states have (on average 1.5546875) internal successors, (199), 130 states have internal predecessors, (199), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:57:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 828 transitions. [2023-11-29 00:57:38,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-29 00:57:38,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:57:38,521 INFO L195 NwaCegarLoop]: trace histogram [170, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:57:38,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (15)] Ended with exit code 0 [2023-11-29 00:57:38,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:57:38,722 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 00:57:38,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:57:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1264974863, now seen corresponding path program 10 times [2023-11-29 00:57:38,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:57:38,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546540713] [2023-11-29 00:57:38,723 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:57:38,723 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 [2023-11-29 00:57:38,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:57:38,724 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:57:38,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f9129-2488-4974-81f1-649590ded6b5/bin/uautomizer-verify-BQ2R08f2Ya/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 (16)] Waiting until timeout for monitored process [2023-11-29 00:57:40,949 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:57:40,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:57:41,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 2322 conjuncts, 129 conjunts are in the unsatisfiable core [2023-11-29 00:57:41,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:57:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 14708 backedges. 5716 proven. 8001 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:57:51,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:58:00,360 WARN L293 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 386 DAG size of output: 385 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 00:58:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14708 backedges. 5716 proven. 8001 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 00:58:40,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:58:40,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546540713] [2023-11-29 00:58:40,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546540713] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:58:40,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:58:40,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130] total 258 [2023-11-29 00:58:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316035151] [2023-11-29 00:58:40,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:58:40,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2023-11-29 00:58:40,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:58:40,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2023-11-29 00:58:40,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16897, Invalid=49409, Unknown=0, NotChecked=0, Total=66306 [2023-11-29 00:58:40,336 INFO L87 Difference]: Start difference. First operand 569 states and 828 transitions. Second operand has 258 states, 256 states have (on average 1.27734375) internal successors, (327), 258 states have internal predecessors, (327), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)