./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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_83681a1b-d063-4536-947f-c5fd85b90d75/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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:50:57,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:50:57,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 05:50:57,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:50:57,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:50:57,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:50:57,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:50:57,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:50:57,804 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:50:57,805 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:50:57,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:50:57,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:50:57,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:50:57,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:50:57,808 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:50:57,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:50:57,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:50:57,809 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:50:57,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:50:57,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:50:57,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:50:57,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:50:57,812 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:50:57,812 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:50:57,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:50:57,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:50:57,814 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:50:57,814 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:50:57,814 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:50:57,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:50:57,815 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:50:57,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:50:57,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:50:57,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:50:57,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:50:57,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:50:57,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:50:57,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:50:57,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:50:57,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:50:57,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:50:57,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:50:57,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:50:57,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:50:57,819 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_83681a1b-d063-4536-947f-c5fd85b90d75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2023-11-29 05:50:58,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:50:58,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:50:58,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:50:58,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:50:58,044 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:50:58,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-29 05:51:00,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:51:01,075 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:51:01,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-29 05:51:01,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data/56368098d/b262a0eba3184d159165cc716bda3dbf/FLAG79355e48f [2023-11-29 05:51:01,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data/56368098d/b262a0eba3184d159165cc716bda3dbf [2023-11-29 05:51:01,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:51:01,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:51:01,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:51:01,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:51:01,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:51:01,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:51:01" (1/1) ... [2023-11-29 05:51:01,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fa9fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:01, skipping insertion in model container [2023-11-29 05:51:01,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:51:01" (1/1) ... [2023-11-29 05:51:01,187 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:51:01,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:51:01,693 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 05:51:01,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f096a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:01, skipping insertion in model container [2023-11-29 05:51:01,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:51:01,695 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 05:51:01,697 INFO L158 Benchmark]: Toolchain (without parser) took 583.88ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 127.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:51:01,697 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:51:01,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.37ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 127.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:51:01,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.37ms. Allocated memory is still 188.7MB. Free memory was 147.3MB in the beginning and 127.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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_83681a1b-d063-4536-947f-c5fd85b90d75/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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:51:03,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:51:03,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 05:51:03,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:51:03,561 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:51:03,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:51:03,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:51:03,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:51:03,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:51:03,598 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:51:03,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:51:03,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:51:03,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:51:03,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:51:03,601 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:51:03,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:51:03,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:51:03,602 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:51:03,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:51:03,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:51:03,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:51:03,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:51:03,605 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:51:03,605 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:51:03,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:51:03,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:51:03,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:51:03,607 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:51:03,607 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:51:03,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:51:03,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:51:03,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:51:03,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:51:03,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:51:03,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:51:03,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:51:03,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:51:03,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:51:03,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:51:03,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:51:03,611 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:51:03,612 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:51:03,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:51:03,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:51:03,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:51:03,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:51:03,613 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:51:03,613 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_83681a1b-d063-4536-947f-c5fd85b90d75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2023-11-29 05:51:03,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:51:03,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:51:03,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:51:03,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:51:03,906 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:51:03,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-29 05:51:06,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:51:07,027 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:51:07,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-29 05:51:07,046 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data/88153c9fb/bcd0a58a9f4249d2b0ae3162dc4a926e/FLAG7f8d048e6 [2023-11-29 05:51:07,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/data/88153c9fb/bcd0a58a9f4249d2b0ae3162dc4a926e [2023-11-29 05:51:07,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:51:07,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:51:07,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:51:07,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:51:07,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:51:07,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:07,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1716cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07, skipping insertion in model container [2023-11-29 05:51:07,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:07,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:51:07,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:51:07,580 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 05:51:07,589 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:51:07,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:51:07,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:51:07,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:51:07,779 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:51:07,785 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:51:07,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07 WrapperNode [2023-11-29 05:51:07,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:51:07,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:51:07,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:51:07,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:51:07,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:07,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:07,888 INFO L138 Inliner]: procedures = 179, calls = 331, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1160 [2023-11-29 05:51:07,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:51:07,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:51:07,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:51:07,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:51:07,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:07,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:07,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,030 INFO L175 MemorySlicer]: Split 306 memory accesses to 4 slices as follows [2, 34, 5, 265]. 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, 4, 1, 58]. [2023-11-29 05:51:08,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:51:08,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:51:08,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:51:08,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:51:08,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (1/1) ... [2023-11-29 05:51:08,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:51:08,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:08,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:51:08,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:51:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 05:51:08,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 05:51:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 05:51:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 05:51:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 05:51:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 05:51:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 05:51:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 05:51:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 05:51:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 05:51:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 05:51:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:51:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:51:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:51:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:51:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:51:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:51:08,400 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:51:08,402 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:51:16,704 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:51:16,744 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:51:16,744 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-29 05:51:16,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:51:16 BoogieIcfgContainer [2023-11-29 05:51:16,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:51:16,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:51:16,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:51:16,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:51:16,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:51:07" (1/3) ... [2023-11-29 05:51:16,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12484d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:51:16, skipping insertion in model container [2023-11-29 05:51:16,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:51:07" (2/3) ... [2023-11-29 05:51:16,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12484d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:51:16, skipping insertion in model container [2023-11-29 05:51:16,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:51:16" (3/3) ... [2023-11-29 05:51:16,753 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-2.i [2023-11-29 05:51:16,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:51:16,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:51:16,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:51:16,829 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;@559a34f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:51:16,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:51:16,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 224 states, 214 states have (on average 1.6775700934579438) internal successors, (359), 217 states have internal predecessors, (359), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:51:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 05:51:16,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:16,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:16,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:16,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:16,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1212093827, now seen corresponding path program 1 times [2023-11-29 05:51:16,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:16,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701122595] [2023-11-29 05:51:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:16,863 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 05:51:16,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:16,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:16,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:17,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:51:17,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:17,153 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 05:51:17,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:17,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:17,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701122595] [2023-11-29 05:51:17,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701122595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:17,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:17,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:51:17,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429835253] [2023-11-29 05:51:17,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:17,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:51:17,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:17,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:51:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:51:17,195 INFO L87 Difference]: Start difference. First operand has 224 states, 214 states have (on average 1.6775700934579438) internal successors, (359), 217 states have internal predecessors, (359), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 05:51:17,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:17,254 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2023-11-29 05:51:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:51:17,257 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2023-11-29 05:51:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:17,267 INFO L225 Difference]: With dead ends: 221 [2023-11-29 05:51:17,268 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 05:51:17,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 05:51:17,273 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:17,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 283 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:51:17,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 05:51:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-29 05:51:17,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 214 states have internal predecessors, (278), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:51:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2023-11-29 05:51:17,329 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 9 [2023-11-29 05:51:17,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:17,329 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2023-11-29 05:51:17,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 05:51:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2023-11-29 05:51:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:51:17,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:17,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:17,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:17,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:17,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:17,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:17,532 INFO L85 PathProgramCache]: Analyzing trace with hash 447250200, now seen corresponding path program 1 times [2023-11-29 05:51:17,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:17,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399069386] [2023-11-29 05:51:17,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:17,533 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 05:51:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:17,534 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:17,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:17,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:51:17,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:17,896 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 05:51:17,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:17,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:17,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399069386] [2023-11-29 05:51:17,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399069386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:17,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:17,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:51:17,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001760775] [2023-11-29 05:51:17,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:17,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:17,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:17,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:17,900 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 05:51:22,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:51:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:24,971 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2023-11-29 05:51:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:51:24,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2023-11-29 05:51:24,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:24,977 INFO L225 Difference]: With dead ends: 366 [2023-11-29 05:51:24,977 INFO L226 Difference]: Without dead ends: 366 [2023-11-29 05:51:24,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 05:51:24,979 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 194 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:24,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 785 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-11-29 05:51:24,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-29 05:51:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 334. [2023-11-29 05:51:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 326 states have (on average 1.3098159509202454) internal successors, (427), 328 states have internal predecessors, (427), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:51:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 435 transitions. [2023-11-29 05:51:25,002 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 435 transitions. Word has length 11 [2023-11-29 05:51:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:25,002 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 435 transitions. [2023-11-29 05:51:25,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 05:51:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 435 transitions. [2023-11-29 05:51:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:51:25,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:25,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:25,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:25,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:25,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:25,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:25,205 INFO L85 PathProgramCache]: Analyzing trace with hash 274580496, now seen corresponding path program 1 times [2023-11-29 05:51:25,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:25,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840436360] [2023-11-29 05:51:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:25,206 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 05:51:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:25,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:25,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:25,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:51:25,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:25,436 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:51:25,437 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:51:25,448 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 33 treesize of output 31 [2023-11-29 05:51:25,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:51:25,514 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 62 treesize of output 22 [2023-11-29 05:51:25,544 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 05:51:25,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:25,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:25,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840436360] [2023-11-29 05:51:25,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840436360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:25,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:25,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:51:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008225841] [2023-11-29 05:51:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:25,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:25,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:25,548 INFO L87 Difference]: Start difference. First operand 334 states and 435 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:51:26,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:26,351 INFO L93 Difference]: Finished difference Result 527 states and 690 transitions. [2023-11-29 05:51:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:51:26,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 05:51:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:26,356 INFO L225 Difference]: With dead ends: 527 [2023-11-29 05:51:26,356 INFO L226 Difference]: Without dead ends: 527 [2023-11-29 05:51:26,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 05:51:26,357 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 263 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:26,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 783 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:51:26,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-29 05:51:26,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 333. [2023-11-29 05:51:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 325 states have (on average 1.3076923076923077) internal successors, (425), 327 states have internal predecessors, (425), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:51:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 433 transitions. [2023-11-29 05:51:26,378 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 433 transitions. Word has length 14 [2023-11-29 05:51:26,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:26,378 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 433 transitions. [2023-11-29 05:51:26,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:51:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 433 transitions. [2023-11-29 05:51:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:51:26,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:26,381 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] [2023-11-29 05:51:26,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:26,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:26,582 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:26,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash -466162505, now seen corresponding path program 1 times [2023-11-29 05:51:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:26,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503477931] [2023-11-29 05:51:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:26,585 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 05:51:26,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:26,586 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:26,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:27,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:51:27,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:51:27,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:27,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:27,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503477931] [2023-11-29 05:51:27,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503477931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:27,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:27,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:51:27,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909709531] [2023-11-29 05:51:27,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:27,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:27,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:27,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:27,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:27,192 INFO L87 Difference]: Start difference. First operand 333 states and 433 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:27,330 INFO L93 Difference]: Finished difference Result 341 states and 425 transitions. [2023-11-29 05:51:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:51:27,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2023-11-29 05:51:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:27,333 INFO L225 Difference]: With dead ends: 341 [2023-11-29 05:51:27,333 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 05:51:27,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 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 05:51:27,334 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 36 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:27,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 738 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:51:27,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 05:51:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2023-11-29 05:51:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 331 states have (on average 1.2537764350453173) internal successors, (415), 333 states have internal predecessors, (415), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:51:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 423 transitions. [2023-11-29 05:51:27,347 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 423 transitions. Word has length 80 [2023-11-29 05:51:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:27,347 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 423 transitions. [2023-11-29 05:51:27,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 423 transitions. [2023-11-29 05:51:27,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:51:27,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:27,351 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] [2023-11-29 05:51:27,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:27,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:27,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:27,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:27,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2049539157, now seen corresponding path program 1 times [2023-11-29 05:51:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:27,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459549235] [2023-11-29 05:51:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:27,554 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 05:51:27,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:27,555 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:27,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:28,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:51:28,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:51:28,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:28,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:28,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459549235] [2023-11-29 05:51:28,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459549235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:28,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:28,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:51:28,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322354959] [2023-11-29 05:51:28,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:28,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:28,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:28,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:28,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:28,060 INFO L87 Difference]: Start difference. First operand 339 states and 423 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:51:28,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:28,139 INFO L93 Difference]: Finished difference Result 341 states and 426 transitions. [2023-11-29 05:51:28,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:51:28,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 80 [2023-11-29 05:51:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:28,142 INFO L225 Difference]: With dead ends: 341 [2023-11-29 05:51:28,143 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 05:51:28,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 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 05:51:28,144 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:28,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:51:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 05:51:28,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2023-11-29 05:51:28,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 332 states have (on average 1.2560240963855422) internal successors, (417), 335 states have internal predecessors, (417), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 426 transitions. [2023-11-29 05:51:28,152 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 426 transitions. Word has length 80 [2023-11-29 05:51:28,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:28,152 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 426 transitions. [2023-11-29 05:51:28,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:51:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 426 transitions. [2023-11-29 05:51:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 05:51:28,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:28,155 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2023-11-29 05:51:28,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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)] Ended with exit code 0 [2023-11-29 05:51:28,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:28,356 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:28,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash -55073947, now seen corresponding path program 1 times [2023-11-29 05:51:28,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:28,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163639766] [2023-11-29 05:51:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:28,357 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 05:51:28,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:28,358 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:28,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:28,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:51:28,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:51:28,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:51:28,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:28,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163639766] [2023-11-29 05:51:28,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163639766] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:28,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:28,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:51:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171631181] [2023-11-29 05:51:28,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:28,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:28,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:28,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:28,972 INFO L87 Difference]: Start difference. First operand 341 states and 426 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:29,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:29,263 INFO L93 Difference]: Finished difference Result 350 states and 440 transitions. [2023-11-29 05:51:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:51:29,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2023-11-29 05:51:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:29,267 INFO L225 Difference]: With dead ends: 350 [2023-11-29 05:51:29,267 INFO L226 Difference]: Without dead ends: 350 [2023-11-29 05:51:29,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:51:29,268 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 7 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:29,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1072 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:51:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-29 05:51:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2023-11-29 05:51:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 339 states have (on average 1.2684365781710913) internal successors, (430), 342 states have internal predecessors, (430), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 439 transitions. [2023-11-29 05:51:29,280 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 439 transitions. Word has length 82 [2023-11-29 05:51:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:29,281 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 439 transitions. [2023-11-29 05:51:29,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 439 transitions. [2023-11-29 05:51:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 05:51:29,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:29,284 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-29 05:51:29,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:29,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:29,492 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:29,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash -328889141, now seen corresponding path program 2 times [2023-11-29 05:51:29,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:29,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590979675] [2023-11-29 05:51:29,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:51:29,494 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 05:51:29,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:29,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:29,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:29,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:51:29,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:29,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:51:29,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:29,814 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:51:29,815 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:51:29,815 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:51:29,818 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 05:51:29,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:51:29,872 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 05:51:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 05:51:29,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:29,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:29,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590979675] [2023-11-29 05:51:29,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590979675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:29,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:29,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:51:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096552956] [2023-11-29 05:51:29,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:29,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:29,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:29,891 INFO L87 Difference]: Start difference. First operand 349 states and 439 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:30,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:30,459 INFO L93 Difference]: Finished difference Result 509 states and 650 transitions. [2023-11-29 05:51:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:51:30,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2023-11-29 05:51:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:30,463 INFO L225 Difference]: With dead ends: 509 [2023-11-29 05:51:30,464 INFO L226 Difference]: Without dead ends: 509 [2023-11-29 05:51:30,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 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 05:51:30,465 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 207 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:30,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 807 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:51:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-11-29 05:51:30,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 351. [2023-11-29 05:51:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 341 states have (on average 1.2668621700879765) internal successors, (432), 344 states have internal predecessors, (432), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 441 transitions. [2023-11-29 05:51:30,478 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 441 transitions. Word has length 86 [2023-11-29 05:51:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:30,479 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 441 transitions. [2023-11-29 05:51:30,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:30,479 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 441 transitions. [2023-11-29 05:51:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 05:51:30,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:30,481 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:30,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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)] Ended with exit code 0 [2023-11-29 05:51:30,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:30,682 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:30,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1435241989, now seen corresponding path program 1 times [2023-11-29 05:51:30,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:30,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486270541] [2023-11-29 05:51:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:30,683 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 05:51:30,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:30,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:30,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:31,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:51:31,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:51:31,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:51:31,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:31,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486270541] [2023-11-29 05:51:31,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486270541] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:31,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:31,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 05:51:31,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220764439] [2023-11-29 05:51:31,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:31,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:51:31,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:31,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:51:31,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:51:31,576 INFO L87 Difference]: Start difference. First operand 351 states and 441 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:32,388 INFO L93 Difference]: Finished difference Result 366 states and 463 transitions. [2023-11-29 05:51:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:51:32,389 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 122 [2023-11-29 05:51:32,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:32,392 INFO L225 Difference]: With dead ends: 366 [2023-11-29 05:51:32,392 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 05:51:32,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 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 05:51:32,394 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 13 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:32,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1873 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:51:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 05:51:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 360. [2023-11-29 05:51:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 350 states have (on average 1.2685714285714285) internal successors, (444), 353 states have internal predecessors, (444), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 453 transitions. [2023-11-29 05:51:32,406 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 453 transitions. Word has length 122 [2023-11-29 05:51:32,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:32,406 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 453 transitions. [2023-11-29 05:51:32,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:32,407 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 453 transitions. [2023-11-29 05:51:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 05:51:32,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:32,409 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:32,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:32,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:32,609 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:32,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:32,610 INFO L85 PathProgramCache]: Analyzing trace with hash -926300358, now seen corresponding path program 2 times [2023-11-29 05:51:32,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:32,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576077891] [2023-11-29 05:51:32,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:51:32,611 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 05:51:32,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:32,612 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:32,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:32,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:51:32,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:32,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:51:32,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:32,974 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-29 05:51:32,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:32,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:32,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576077891] [2023-11-29 05:51:32,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576077891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:32,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:32,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:51:32,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199364072] [2023-11-29 05:51:32,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:32,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:32,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:32,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:32,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:32,976 INFO L87 Difference]: Start difference. First operand 360 states and 453 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:33,120 INFO L93 Difference]: Finished difference Result 368 states and 445 transitions. [2023-11-29 05:51:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:51:33,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 131 [2023-11-29 05:51:33,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:33,124 INFO L225 Difference]: With dead ends: 368 [2023-11-29 05:51:33,124 INFO L226 Difference]: Without dead ends: 368 [2023-11-29 05:51:33,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 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 05:51:33,125 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 36 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:33,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 705 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:51:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-29 05:51:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 366. [2023-11-29 05:51:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 356 states have (on average 1.2191011235955056) internal successors, (434), 359 states have internal predecessors, (434), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 443 transitions. [2023-11-29 05:51:33,137 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 443 transitions. Word has length 131 [2023-11-29 05:51:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:33,138 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 443 transitions. [2023-11-29 05:51:33,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:33,138 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 443 transitions. [2023-11-29 05:51:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 05:51:33,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:33,140 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:33,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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)] Ended with exit code 0 [2023-11-29 05:51:33,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:33,341 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:33,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 171502126, now seen corresponding path program 1 times [2023-11-29 05:51:33,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:33,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932168593] [2023-11-29 05:51:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:33,342 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 05:51:33,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:33,343 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:33,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:33,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:51:33,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:34,137 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:51:34,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 05:51:34,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932168593] [2023-11-29 05:51:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932168593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:34,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:34,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 05:51:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428276415] [2023-11-29 05:51:34,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:34,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 05:51:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 05:51:34,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:51:34,829 INFO L87 Difference]: Start difference. First operand 366 states and 443 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:37,558 INFO L93 Difference]: Finished difference Result 396 states and 489 transitions. [2023-11-29 05:51:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 05:51:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2023-11-29 05:51:37,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:37,561 INFO L225 Difference]: With dead ends: 396 [2023-11-29 05:51:37,561 INFO L226 Difference]: Without dead ends: 394 [2023-11-29 05:51:37,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 05:51:37,563 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 25 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:37,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4098 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:51:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-11-29 05:51:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 384. [2023-11-29 05:51:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 374 states have (on average 1.2245989304812834) internal successors, (458), 377 states have internal predecessors, (458), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 467 transitions. [2023-11-29 05:51:37,573 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 467 transitions. Word has length 131 [2023-11-29 05:51:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:37,574 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 467 transitions. [2023-11-29 05:51:37,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 467 transitions. [2023-11-29 05:51:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 05:51:37,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:37,576 INFO L195 NwaCegarLoop]: trace histogram [33, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:37,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:37,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:37,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:37,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1621936846, now seen corresponding path program 2 times [2023-11-29 05:51:37,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:37,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462131058] [2023-11-29 05:51:37,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:51:37,779 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 05:51:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:37,780 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:37,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:38,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:51:38,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:38,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:51:38,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 05:51:39,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:51:41,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:41,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462131058] [2023-11-29 05:51:41,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462131058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:41,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:41,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 05:51:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283395237] [2023-11-29 05:51:41,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:41,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 05:51:41,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 05:51:41,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 05:51:41,347 INFO L87 Difference]: Start difference. First operand 384 states and 467 transitions. Second operand has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:52,156 INFO L93 Difference]: Finished difference Result 442 states and 557 transitions. [2023-11-29 05:51:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 05:51:52,158 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2023-11-29 05:51:52,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:52,160 INFO L225 Difference]: With dead ends: 442 [2023-11-29 05:51:52,160 INFO L226 Difference]: Without dead ends: 440 [2023-11-29 05:51:52,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 05:51:52,165 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 49 mSDsluCounter, 6145 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 6404 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:52,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 6404 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 05:51:52,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-29 05:51:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 418. [2023-11-29 05:51:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 408 states have (on average 1.2352941176470589) internal successors, (504), 411 states have internal predecessors, (504), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:51:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 513 transitions. [2023-11-29 05:51:52,177 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 513 transitions. Word has length 149 [2023-11-29 05:51:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:52,178 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 513 transitions. [2023-11-29 05:51:52,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:51:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 513 transitions. [2023-11-29 05:51:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-29 05:51:52,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:52,181 INFO L195 NwaCegarLoop]: trace histogram [67, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:52,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:52,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:52,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:51:52,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:52,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1652810578, now seen corresponding path program 3 times [2023-11-29 05:51:52,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:51:52,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984808011] [2023-11-29 05:51:52,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:51:52,383 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 05:51:52,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:51:52,384 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:52,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:51:52,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:51:52,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:52,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:51:53,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-29 05:51:53,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:53,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:51:53,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984808011] [2023-11-29 05:51:53,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984808011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:53,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:53,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:51:53,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678922355] [2023-11-29 05:51:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:53,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:51:53,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:51:53,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:51:53,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:51:53,243 INFO L87 Difference]: Start difference. First operand 418 states and 513 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:51:57,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:52:01,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:52:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:03,035 INFO L93 Difference]: Finished difference Result 509 states and 623 transitions. [2023-11-29 05:52:03,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:52:03,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 183 [2023-11-29 05:52:03,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:03,041 INFO L225 Difference]: With dead ends: 509 [2023-11-29 05:52:03,041 INFO L226 Difference]: Without dead ends: 509 [2023-11-29 05:52:03,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 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 05:52:03,042 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 398 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:03,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 477 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2023-11-29 05:52:03,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-11-29 05:52:03,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 506. [2023-11-29 05:52:03,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 496 states have (on average 1.2318548387096775) internal successors, (611), 499 states have internal predecessors, (611), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:52:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 620 transitions. [2023-11-29 05:52:03,055 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 620 transitions. Word has length 183 [2023-11-29 05:52:03,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:03,055 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 620 transitions. [2023-11-29 05:52:03,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:52:03,056 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 620 transitions. [2023-11-29 05:52:03,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 05:52:03,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:03,058 INFO L195 NwaCegarLoop]: trace histogram [67, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:03,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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)] Ended with exit code 0 [2023-11-29 05:52:03,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:03,259 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:52:03,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:03,260 INFO L85 PathProgramCache]: Analyzing trace with hash 561176696, now seen corresponding path program 1 times [2023-11-29 05:52:03,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:52:03,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125793987] [2023-11-29 05:52:03,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:03,261 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 05:52:03,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:52:03,262 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:03,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:52:04,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 05:52:04,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:52:05,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:52:07,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:52:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125793987] [2023-11-29 05:52:07,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125793987] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:52:07,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:52:07,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 05:52:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178637844] [2023-11-29 05:52:07,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:07,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 05:52:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:52:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 05:52:07,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 05:52:07,201 INFO L87 Difference]: Start difference. First operand 506 states and 620 transitions. Second operand has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:52:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:17,639 INFO L93 Difference]: Finished difference Result 555 states and 694 transitions. [2023-11-29 05:52:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 05:52:17,640 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 191 [2023-11-29 05:52:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:17,642 INFO L225 Difference]: With dead ends: 555 [2023-11-29 05:52:17,642 INFO L226 Difference]: Without dead ends: 555 [2023-11-29 05:52:17,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3565 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 05:52:17,647 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 55 mSDsluCounter, 6890 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 7148 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:17,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 7148 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 05:52:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-29 05:52:17,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 531. [2023-11-29 05:52:17,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 521 states have (on average 1.2687140115163147) internal successors, (661), 524 states have internal predecessors, (661), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:52:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 670 transitions. [2023-11-29 05:52:17,660 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 670 transitions. Word has length 191 [2023-11-29 05:52:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:17,660 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 670 transitions. [2023-11-29 05:52:17,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:52:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 670 transitions. [2023-11-29 05:52:17,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 05:52:17,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:17,662 INFO L195 NwaCegarLoop]: trace histogram [92, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:17,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:17,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:17,862 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:52:17,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2042209959, now seen corresponding path program 2 times [2023-11-29 05:52:17,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:52:17,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602698541] [2023-11-29 05:52:17,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:52:17,864 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 05:52:17,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:52:17,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:17,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:52:19,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:52:19,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:19,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 05:52:19,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:52:21,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:52:30,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:52:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602698541] [2023-11-29 05:52:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602698541] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:52:30,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:52:30,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 05:52:30,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497635590] [2023-11-29 05:52:30,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:30,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 05:52:30,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:52:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 05:52:30,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 05:52:30,680 INFO L87 Difference]: Start difference. First operand 531 states and 670 transitions. Second operand has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:53:20,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:20,738 INFO L93 Difference]: Finished difference Result 638 states and 830 transitions. [2023-11-29 05:53:20,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 05:53:20,739 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 216 [2023-11-29 05:53:20,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:20,742 INFO L225 Difference]: With dead ends: 638 [2023-11-29 05:53:20,742 INFO L226 Difference]: Without dead ends: 638 [2023-11-29 05:53:20,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 05:53:20,749 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 164 mSDsluCounter, 12752 mSDsCounter, 0 mSdLazyCounter, 7953 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 13010 SdHoareTripleChecker+Invalid, 8049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 7953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:20,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 13010 Invalid, 8049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 7953 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-11-29 05:53:20,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-29 05:53:20,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 585. [2023-11-29 05:53:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 575 states have (on average 1.3356521739130436) internal successors, (768), 578 states have internal predecessors, (768), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:53:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 777 transitions. [2023-11-29 05:53:20,764 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 777 transitions. Word has length 216 [2023-11-29 05:53:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:20,765 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 777 transitions. [2023-11-29 05:53:20,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:53:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 777 transitions. [2023-11-29 05:53:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 05:53:20,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:20,767 INFO L195 NwaCegarLoop]: trace histogram [142, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:53:20,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:20,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:53:20,967 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:53:20,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:20,968 INFO L85 PathProgramCache]: Analyzing trace with hash 555126329, now seen corresponding path program 3 times [2023-11-29 05:53:20,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:53:20,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129904445] [2023-11-29 05:53:20,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:53:20,969 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 05:53:20,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:53:20,970 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:53:20,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:53:22,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:53:22,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:22,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:53:22,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:22,126 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:22,126 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:53:22,128 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 35 treesize of output 29 [2023-11-29 05:53:26,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:53:26,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 210 treesize of output 92 [2023-11-29 05:53:26,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:53:26,811 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 114 treesize of output 70 [2023-11-29 05:53:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-29 05:53:26,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-29 05:53:27,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:53:27,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129904445] [2023-11-29 05:53:27,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129904445] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:53:27,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:53:27,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 05:53:27,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975922568] [2023-11-29 05:53:27,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:27,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:53:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:53:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:53:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:53:27,576 INFO L87 Difference]: Start difference. First operand 585 states and 777 transitions. Second operand has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 13 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:53:32,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:53:36,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:53:40,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:53:44,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:53:49,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:53:53,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:53:57,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:01,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:05,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:09,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:13,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:17,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:21,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:25,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:30,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:34,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:38,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:42,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:46,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:50,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:54,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:54:58,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:55:02,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:55:06,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:55:06,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:55:06,742 INFO L93 Difference]: Finished difference Result 1946 states and 2518 transitions. [2023-11-29 05:55:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:55:06,744 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 13 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 266 [2023-11-29 05:55:06,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:55:06,751 INFO L225 Difference]: With dead ends: 1946 [2023-11-29 05:55:06,751 INFO L226 Difference]: Without dead ends: 1946 [2023-11-29 05:55:06,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 516 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:55:06,752 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1943 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 27 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:55:06,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 3082 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 231 Invalid, 24 Unknown, 0 Unchecked, 98.8s Time] [2023-11-29 05:55:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2023-11-29 05:55:06,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 796. [2023-11-29 05:55:06,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 782 states have (on average 1.2966751918158568) internal successors, (1014), 785 states have internal predecessors, (1014), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:55:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1029 transitions. [2023-11-29 05:55:06,773 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1029 transitions. Word has length 266 [2023-11-29 05:55:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:55:06,774 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1029 transitions. [2023-11-29 05:55:06,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 13 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:55:06,774 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1029 transitions. [2023-11-29 05:55:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2023-11-29 05:55:06,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:55:06,777 INFO L195 NwaCegarLoop]: trace histogram [142, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-29 05:55:06,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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)] Ended with exit code 0 [2023-11-29 05:55:06,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:55:06,980 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:55:06,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:55:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1447323143, now seen corresponding path program 1 times [2023-11-29 05:55:06,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:55:06,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960395782] [2023-11-29 05:55:06,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:55:06,982 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 05:55:06,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:55:06,983 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 05:55:06,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 (17)] Waiting until timeout for monitored process [2023-11-29 05:55:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:55:09,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-29 05:55:09,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:55:18,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 05:55:18,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:55:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 05:55:51,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:55:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960395782] [2023-11-29 05:55:51,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960395782] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:55:51,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:55:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 05:55:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189708276] [2023-11-29 05:55:51,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:55:51,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 05:55:51,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:55:51,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 05:55:51,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 05:55:51,041 INFO L87 Difference]: Start difference. First operand 796 states and 1029 transitions. Second operand has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:00:49,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:00:49,317 INFO L93 Difference]: Finished difference Result 1297 states and 2028 transitions. [2023-11-29 06:00:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 06:00:49,320 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 434 [2023-11-29 06:00:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:00:49,326 INFO L225 Difference]: With dead ends: 1297 [2023-11-29 06:00:49,326 INFO L226 Difference]: Without dead ends: 1297 [2023-11-29 06:00:49,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29008 ImplicationChecksByTransitivity, 269.1s TimeCoverageRelationStatistics Valid=50195, Invalid=108607, Unknown=0, NotChecked=0, Total=158802 [2023-11-29 06:00:49,335 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 166 mSDsluCounter, 25503 mSDsCounter, 0 mSdLazyCounter, 31002 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 25761 SdHoareTripleChecker+Invalid, 31144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 31002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:00:49,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 25761 Invalid, 31144 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [142 Valid, 31002 Invalid, 0 Unknown, 0 Unchecked, 61.9s Time] [2023-11-29 06:00:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2023-11-29 06:00:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 896. [2023-11-29 06:00:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 882 states have (on average 1.3764172335600906) internal successors, (1214), 885 states have internal predecessors, (1214), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 06:00:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1229 transitions. [2023-11-29 06:00:49,409 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1229 transitions. Word has length 434 [2023-11-29 06:00:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:00:49,409 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1229 transitions. [2023-11-29 06:00:49,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:00:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1229 transitions. [2023-11-29 06:00:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 06:00:49,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:00:49,413 INFO L195 NwaCegarLoop]: trace histogram [242, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-29 06:00:49,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 (17)] Ended with exit code 0 [2023-11-29 06:00:49,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 06:00:49,614 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:00:49,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:00:49,614 INFO L85 PathProgramCache]: Analyzing trace with hash -271505465, now seen corresponding path program 2 times [2023-11-29 06:00:49,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:00:49,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266036087] [2023-11-29 06:00:49,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:00:49,617 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 06:00:49,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:00:49,618 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 06:00:49,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83681a1b-d063-4536-947f-c5fd85b90d75/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 (18)] Waiting until timeout for monitored process [2023-11-29 06:00:53,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:00:53,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:00:53,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 4037 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-29 06:00:53,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:01:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 06:01:19,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:46,656 WARN L293 SmtUtils]: Spent 26.67s on a formula simplification. DAG size of input: 602 DAG size of output: 601 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 06:03:38,757 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 06:03:38,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266036087] [2023-11-29 06:03:38,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266036087] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:38,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:38,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-29 06:03:38,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698507757] [2023-11-29 06:03:38,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:38,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-29 06:03:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-29 06:03:38,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-29 06:03:38,774 INFO L87 Difference]: Start difference. First operand 896 states and 1229 transitions. Second operand has 402 states, 400 states have (on average 1.3925) internal successors, (557), 402 states have internal predecessors, (557), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)