./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:41:16,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:41:16,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 06:41:16,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:41:16,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:41:16,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:41:16,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:41:16,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:41:16,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:41:16,945 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:41:16,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:41:16,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:41:16,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:41:16,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:41:16,948 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:41:16,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:41:16,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:41:16,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:41:16,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:41:16,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:41:16,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:41:16,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:41:16,952 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 06:41:16,952 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 06:41:16,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:41:16,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:41:16,954 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:41:16,954 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:41:16,954 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:41:16,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:41:16,955 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:41:16,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:41:16,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:41:16,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:41:16,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:41:16,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:16,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:41:16,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:41:16,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:41:16,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:41:16,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:41:16,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:41:16,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:41:16,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:41:16,959 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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2023-11-29 06:41:17,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:41:17,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:41:17,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:41:17,225 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:41:17,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:41:17,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i [2023-11-29 06:41:19,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:41:20,196 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:41:20,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i [2023-11-29 06:41:20,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data/2a7deac4b/d3278e5a6cf245c9b24d550db0faa716/FLAG9e51bc112 [2023-11-29 06:41:20,228 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data/2a7deac4b/d3278e5a6cf245c9b24d550db0faa716 [2023-11-29 06:41:20,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:41:20,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:41:20,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:20,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:41:20,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:41:20,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:20" (1/1) ... [2023-11-29 06:41:20,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f2be5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:20, skipping insertion in model container [2023-11-29 06:41:20,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:20" (1/1) ... [2023-11-29 06:41:20,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:41:20,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:20,801 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 06:41:20,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77addc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:20, skipping insertion in model container [2023-11-29 06:41:20,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:20,802 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 06:41:20,804 INFO L158 Benchmark]: Toolchain (without parser) took 572.55ms. Allocated memory is still 138.4MB. Free memory was 99.8MB in the beginning and 80.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:41:20,805 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:41:20,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.75ms. Allocated memory is still 138.4MB. Free memory was 99.5MB in the beginning and 80.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:41:20,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.75ms. Allocated memory is still 138.4MB. Free memory was 99.5MB in the beginning and 80.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 817]: 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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:41:22,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:41:22,574 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 06:41:22,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:41:22,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:41:22,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:41:22,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:41:22,607 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:41:22,608 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:41:22,609 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:41:22,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:41:22,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:41:22,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:41:22,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:41:22,611 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:41:22,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:41:22,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:41:22,613 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:41:22,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:41:22,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:41:22,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:41:22,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:41:22,616 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 06:41:22,616 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 06:41:22,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:41:22,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:41:22,617 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:41:22,618 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:41:22,618 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:41:22,619 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:41:22,619 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:41:22,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:41:22,620 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:41:22,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:41:22,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:41:22,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:41:22,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:41:22,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:22,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:41:22,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:41:22,622 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:41:22,622 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:41:22,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:41:22,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:41:22,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:41:22,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:41:22,623 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:41:22,623 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_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2023-11-29 06:41:22,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:41:22,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:41:22,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:41:22,943 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:41:22,944 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:41:22,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i [2023-11-29 06:41:25,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:41:26,032 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:41:26,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-1.i [2023-11-29 06:41:26,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data/5b524ae82/b86e7048b4d1483eaade097b0548c042/FLAGb05742c37 [2023-11-29 06:41:26,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/data/5b524ae82/b86e7048b4d1483eaade097b0548c042 [2023-11-29 06:41:26,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:41:26,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:41:26,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:26,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:41:26,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:41:26,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:26,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3202ad86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26, skipping insertion in model container [2023-11-29 06:41:26,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:26,185 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:41:26,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:26,729 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 06:41:26,744 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:41:26,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:26,828 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:41:26,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:26,949 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:41:26,957 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:41:26,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26 WrapperNode [2023-11-29 06:41:26,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:26,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:41:26,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:41:26,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:41:26,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:26,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,045 INFO L138 Inliner]: procedures = 210, calls = 230, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 867 [2023-11-29 06:41:27,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:41:27,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:41:27,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:41:27,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:41:27,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,133 INFO L175 MemorySlicer]: Split 211 memory accesses to 4 slices as follows [2, 5, 34, 170]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 1, 4, 42]. [2023-11-29 06:41:27,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:41:27,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:41:27,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:41:27,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:41:27,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (1/1) ... [2023-11-29 06:41:27,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:27,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:41:27,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:41:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 06:41:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 06:41:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 06:41:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 06:41:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 06:41:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 06:41:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 06:41:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 06:41:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 06:41:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 06:41:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 06:41:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 06:41:27,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 06:41:27,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 06:41:27,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 06:41:27,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 06:41:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:41:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 06:41:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:41:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:41:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:41:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:41:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 06:41:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:41:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:41:27,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:41:27,509 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:41:27,511 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:41:36,088 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:41:36,121 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:41:36,121 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-29 06:41:36,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:36 BoogieIcfgContainer [2023-11-29 06:41:36,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:41:36,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:41:36,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:41:36,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:41:36,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:41:26" (1/3) ... [2023-11-29 06:41:36,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4824ee67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:36, skipping insertion in model container [2023-11-29 06:41:36,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:26" (2/3) ... [2023-11-29 06:41:36,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4824ee67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:36, skipping insertion in model container [2023-11-29 06:41:36,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:36" (3/3) ... [2023-11-29 06:41:36,131 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test2-1.i [2023-11-29 06:41:36,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:41:36,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:41:36,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:41:36,206 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;@778de60d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:41:36,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:41:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 159 states have (on average 1.679245283018868) internal successors, (267), 161 states have internal predecessors, (267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 06:41:36,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:36,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 06:41:36,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:36,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:36,224 INFO L85 PathProgramCache]: Analyzing trace with hash 724526, now seen corresponding path program 1 times [2023-11-29 06:41:36,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:36,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210634058] [2023-11-29 06:41:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:36,237 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 06:41:36,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:36,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:36,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:36,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:41:36,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:36,519 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_23| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_23| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_23|)))) is different from true [2023-11-29 06:41:36,521 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 06:41:36,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:36,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:36,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210634058] [2023-11-29 06:41:36,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210634058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:36,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:36,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:41:36,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522451960] [2023-11-29 06:41:36,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:36,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:36,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:36,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:36,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 06:41:36,561 INFO L87 Difference]: Start difference. First operand has 166 states, 159 states have (on average 1.679245283018868) internal successors, (267), 161 states have internal predecessors, (267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 06:41:40,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:41:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:41,357 INFO L93 Difference]: Finished difference Result 235 states and 303 transitions. [2023-11-29 06:41:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:41,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-29 06:41:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:41,368 INFO L225 Difference]: With dead ends: 235 [2023-11-29 06:41:41,368 INFO L226 Difference]: Without dead ends: 233 [2023-11-29 06:41:41,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 06:41:41,372 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 89 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 304 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:41,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 392 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 304 Unchecked, 4.7s Time] [2023-11-29 06:41:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-29 06:41:41,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 164. [2023-11-29 06:41:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 158 states have (on average 1.2911392405063291) internal successors, (204), 159 states have internal predecessors, (204), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 210 transitions. [2023-11-29 06:41:41,428 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 210 transitions. Word has length 3 [2023-11-29 06:41:41,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:41,429 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 210 transitions. [2023-11-29 06:41:41,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 06:41:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 210 transitions. [2023-11-29 06:41:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 06:41:41,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:41,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:41,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:41,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:41,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:41,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:41,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1527761817, now seen corresponding path program 1 times [2023-11-29 06:41:41,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:41,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336385783] [2023-11-29 06:41:41,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:41,646 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 06:41:41,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:41,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:41,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:41,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:41:41,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:41,914 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_24| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_24| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_24|) (_ bv0 1)))) is different from true [2023-11-29 06:41:41,915 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 06:41:41,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:41,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:41,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336385783] [2023-11-29 06:41:41,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336385783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:41,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:41,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:41:41,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869322567] [2023-11-29 06:41:41,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:41,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:41,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:41,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:41,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 06:41:41,919 INFO L87 Difference]: Start difference. First operand 164 states and 210 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 06:41:46,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:41:47,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:41:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:47,968 INFO L93 Difference]: Finished difference Result 234 states and 300 transitions. [2023-11-29 06:41:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-29 06:41:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:47,970 INFO L225 Difference]: With dead ends: 234 [2023-11-29 06:41:47,970 INFO L226 Difference]: Without dead ends: 232 [2023-11-29 06:41:47,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 06:41:47,972 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 83 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 299 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:47,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 392 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 1 Unknown, 299 Unchecked, 6.0s Time] [2023-11-29 06:41:47,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-29 06:41:47,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 229. [2023-11-29 06:41:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 223 states have (on average 1.3004484304932735) internal successors, (290), 224 states have internal predecessors, (290), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 296 transitions. [2023-11-29 06:41:47,991 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 296 transitions. Word has length 9 [2023-11-29 06:41:47,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:47,991 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 296 transitions. [2023-11-29 06:41:47,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 06:41:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 296 transitions. [2023-11-29 06:41:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 06:41:47,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:47,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:47,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:48,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1652190333, now seen corresponding path program 1 times [2023-11-29 06:41:48,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:48,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321063403] [2023-11-29 06:41:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:48,196 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 06:41:48,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:48,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:48,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:41:48,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:48,400 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 06:41:48,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:48,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:48,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321063403] [2023-11-29 06:41:48,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321063403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:48,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:48,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456737011] [2023-11-29 06:41:48,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:48,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:48,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:48,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:48,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:48,403 INFO L87 Difference]: Start difference. First operand 229 states and 296 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 06:41:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:48,550 INFO L93 Difference]: Finished difference Result 237 states and 288 transitions. [2023-11-29 06:41:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:48,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2023-11-29 06:41:48,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:48,554 INFO L225 Difference]: With dead ends: 237 [2023-11-29 06:41:48,555 INFO L226 Difference]: Without dead ends: 237 [2023-11-29 06:41:48,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 06:41:48,556 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 46 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:48,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 506 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:48,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-29 06:41:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2023-11-29 06:41:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 229 states have (on average 1.222707423580786) internal successors, (280), 230 states have internal predecessors, (280), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:48,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 286 transitions. [2023-11-29 06:41:48,571 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 286 transitions. Word has length 48 [2023-11-29 06:41:48,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:48,571 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 286 transitions. [2023-11-29 06:41:48,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 06:41:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 286 transitions. [2023-11-29 06:41:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 06:41:48,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:48,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:48,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:48,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:48,785 INFO L85 PathProgramCache]: Analyzing trace with hash -808109079, now seen corresponding path program 1 times [2023-11-29 06:41:48,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:48,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667034673] [2023-11-29 06:41:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:48,786 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 06:41:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:48,787 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:48,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:41:48,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:49,034 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 06:41:49,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:49,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667034673] [2023-11-29 06:41:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667034673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:49,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:49,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:49,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162111201] [2023-11-29 06:41:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:49,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:49,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:49,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:49,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:49,037 INFO L87 Difference]: Start difference. First operand 235 states and 286 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 06:41:49,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:49,153 INFO L93 Difference]: Finished difference Result 223 states and 266 transitions. [2023-11-29 06:41:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:49,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2023-11-29 06:41:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:49,156 INFO L225 Difference]: With dead ends: 223 [2023-11-29 06:41:49,156 INFO L226 Difference]: Without dead ends: 223 [2023-11-29 06:41:49,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 06:41:49,157 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 15 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:49,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 508 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-29 06:41:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2023-11-29 06:41:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 217 states have (on average 1.1981566820276497) internal successors, (260), 218 states have internal predecessors, (260), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 266 transitions. [2023-11-29 06:41:49,169 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 266 transitions. Word has length 48 [2023-11-29 06:41:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:49,169 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 266 transitions. [2023-11-29 06:41:49,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 06:41:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 266 transitions. [2023-11-29 06:41:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 06:41:49,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:49,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:49,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:49,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:49,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:49,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:49,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1489069583, now seen corresponding path program 1 times [2023-11-29 06:41:49,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:49,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480198126] [2023-11-29 06:41:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:49,377 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 06:41:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:49,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:49,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:49,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:41:49,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:49,639 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:41:49,640 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:41:49,641 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:41:49,648 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 06:41:49,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:41:49,742 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 06:41:49,808 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 06:41:49,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:49,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:49,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480198126] [2023-11-29 06:41:49,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480198126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:49,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:49,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:49,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021325225] [2023-11-29 06:41:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:49,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:49,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:49,811 INFO L87 Difference]: Start difference. First operand 223 states and 266 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 06:41:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:50,533 INFO L93 Difference]: Finished difference Result 254 states and 314 transitions. [2023-11-29 06:41:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:41:50,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 48 [2023-11-29 06:41:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:50,535 INFO L225 Difference]: With dead ends: 254 [2023-11-29 06:41:50,536 INFO L226 Difference]: Without dead ends: 251 [2023-11-29 06:41:50,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:41:50,536 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 111 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:50,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 718 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:41:50,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-29 06:41:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 163. [2023-11-29 06:41:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 157 states have (on average 1.21656050955414) internal successors, (191), 158 states have internal predecessors, (191), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2023-11-29 06:41:50,544 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 197 transitions. Word has length 48 [2023-11-29 06:41:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:50,545 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 197 transitions. [2023-11-29 06:41:50,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 06:41:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 197 transitions. [2023-11-29 06:41:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 06:41:50,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:50,548 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:41:50,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-29 06:41:50,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:50,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:50,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:50,753 INFO L85 PathProgramCache]: Analyzing trace with hash -784778281, now seen corresponding path program 1 times [2023-11-29 06:41:50,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:50,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123856341] [2023-11-29 06:41:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:50,753 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 06:41:50,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:50,754 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:50,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:51,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:41:51,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:51,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:51,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:51,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123856341] [2023-11-29 06:41:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123856341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:51,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:51,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:51,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501191399] [2023-11-29 06:41:51,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:51,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:51,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:51,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:51,148 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 06:41:51,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:51,308 INFO L93 Difference]: Finished difference Result 167 states and 193 transitions. [2023-11-29 06:41:51,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:51,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2023-11-29 06:41:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:51,311 INFO L225 Difference]: With dead ends: 167 [2023-11-29 06:41:51,311 INFO L226 Difference]: Without dead ends: 167 [2023-11-29 06:41:51,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:51,312 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 37 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:51,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 465 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:41:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-29 06:41:51,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2023-11-29 06:41:51,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 160 states have (on average 1.1625) internal successors, (186), 161 states have internal predecessors, (186), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 192 transitions. [2023-11-29 06:41:51,319 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 192 transitions. Word has length 65 [2023-11-29 06:41:51,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:51,319 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 192 transitions. [2023-11-29 06:41:51,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 06:41:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 192 transitions. [2023-11-29 06:41:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 06:41:51,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:51,321 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:41:51,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:51,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:51,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:51,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:51,529 INFO L85 PathProgramCache]: Analyzing trace with hash 94691593, now seen corresponding path program 1 times [2023-11-29 06:41:51,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:51,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367350877] [2023-11-29 06:41:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:51,529 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 06:41:51,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:51,530 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:51,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:51,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:41:51,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:52,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:52,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:52,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367350877] [2023-11-29 06:41:52,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367350877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:52,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:52,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:52,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317622956] [2023-11-29 06:41:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:52,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:52,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:52,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:52,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:52,022 INFO L87 Difference]: Start difference. First operand 166 states and 192 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 06:41:52,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:52,133 INFO L93 Difference]: Finished difference Result 160 states and 182 transitions. [2023-11-29 06:41:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2023-11-29 06:41:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:52,136 INFO L225 Difference]: With dead ends: 160 [2023-11-29 06:41:52,136 INFO L226 Difference]: Without dead ends: 160 [2023-11-29 06:41:52,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:52,137 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 11 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:52,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 463 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-29 06:41:52,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-29 06:41:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 154 states have (on average 1.1428571428571428) internal successors, (176), 155 states have internal predecessors, (176), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 182 transitions. [2023-11-29 06:41:52,143 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 182 transitions. Word has length 65 [2023-11-29 06:41:52,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:52,144 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 182 transitions. [2023-11-29 06:41:52,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 06:41:52,144 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 182 transitions. [2023-11-29 06:41:52,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 06:41:52,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:52,145 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 06:41:52,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:52,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:52,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:52,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:52,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1561925619, now seen corresponding path program 1 times [2023-11-29 06:41:52,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:52,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66076842] [2023-11-29 06:41:52,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:52,354 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 06:41:52,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:52,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:52,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:52,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:41:52,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:53,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:53,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:53,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66076842] [2023-11-29 06:41:53,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66076842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:53,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:53,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:41:53,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957434184] [2023-11-29 06:41:53,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:53,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:41:53,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:41:53,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:41:53,007 INFO L87 Difference]: Start difference. First operand 160 states and 182 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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 06:41:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:53,706 INFO L93 Difference]: Finished difference Result 244 states and 266 transitions. [2023-11-29 06:41:53,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:41:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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 65 [2023-11-29 06:41:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:53,708 INFO L225 Difference]: With dead ends: 244 [2023-11-29 06:41:53,708 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 06:41:53,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:41:53,709 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 54 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:53,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 369 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:41:53,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 06:41:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 238. [2023-11-29 06:41:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 232 states have (on average 1.103448275862069) internal successors, (256), 233 states have internal predecessors, (256), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:41:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 262 transitions. [2023-11-29 06:41:53,716 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 262 transitions. Word has length 65 [2023-11-29 06:41:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:53,716 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 262 transitions. [2023-11-29 06:41:53,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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 06:41:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 262 transitions. [2023-11-29 06:41:53,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 06:41:53,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:53,718 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] [2023-11-29 06:41:53,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:53,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:53,919 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:53,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1817112434, now seen corresponding path program 1 times [2023-11-29 06:41:53,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:53,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853163322] [2023-11-29 06:41:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:53,920 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 06:41:53,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:53,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:53,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:54,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:41:54,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:54,391 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 06:41:54,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:54,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:54,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853163322] [2023-11-29 06:41:54,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853163322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:54,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:54,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:54,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664756922] [2023-11-29 06:41:54,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:54,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:54,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:54,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:54,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:54,394 INFO L87 Difference]: Start difference. First operand 238 states and 262 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:41:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:54,487 INFO L93 Difference]: Finished difference Result 240 states and 265 transitions. [2023-11-29 06:41:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 78 [2023-11-29 06:41:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:54,491 INFO L225 Difference]: With dead ends: 240 [2023-11-29 06:41:54,491 INFO L226 Difference]: Without dead ends: 240 [2023-11-29 06:41:54,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 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 06:41:54,492 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 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 06:41:54,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-29 06:41:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-11-29 06:41:54,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 233 states have (on average 1.1072961373390557) internal successors, (258), 235 states have internal predecessors, (258), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:41:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 265 transitions. [2023-11-29 06:41:54,501 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 265 transitions. Word has length 78 [2023-11-29 06:41:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:54,502 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 265 transitions. [2023-11-29 06:41:54,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:41:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 265 transitions. [2023-11-29 06:41:54,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 06:41:54,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:54,503 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] [2023-11-29 06:41:54,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:54,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:54,704 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:54,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:54,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1311912742, now seen corresponding path program 1 times [2023-11-29 06:41:54,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:54,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604038907] [2023-11-29 06:41:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:54,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:41:54,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:54,706 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:54,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:55,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:41:55,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:55,183 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 06:41:55,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:55,271 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 06:41:55,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:55,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604038907] [2023-11-29 06:41:55,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604038907] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:41:55,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:41:55,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:41:55,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646817294] [2023-11-29 06:41:55,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:55,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:41:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:41:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:41:55,279 INFO L87 Difference]: Start difference. First operand 240 states and 265 transitions. Second operand has 8 states, 6 states have (on average 13.666666666666666) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:41:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:55,488 INFO L93 Difference]: Finished difference Result 249 states and 279 transitions. [2023-11-29 06:41:55,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:41:55,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.666666666666666) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 80 [2023-11-29 06:41:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:55,490 INFO L225 Difference]: With dead ends: 249 [2023-11-29 06:41:55,490 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 06:41:55,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:41:55,491 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 7 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:55,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 692 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:55,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 06:41:55,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2023-11-29 06:41:55,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 240 states have (on average 1.1291666666666667) internal successors, (271), 242 states have internal predecessors, (271), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:41:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 278 transitions. [2023-11-29 06:41:55,497 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 278 transitions. Word has length 80 [2023-11-29 06:41:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:55,497 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 278 transitions. [2023-11-29 06:41:55,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.666666666666666) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:41:55,498 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 278 transitions. [2023-11-29 06:41:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 06:41:55,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:55,498 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] [2023-11-29 06:41:55,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:55,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:55,699 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:55,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash -491673102, now seen corresponding path program 2 times [2023-11-29 06:41:55,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:55,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068002953] [2023-11-29 06:41:55,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:41:55,700 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 06:41:55,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:55,701 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:55,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:56,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:41:56,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:41:56,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:41:56,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:56,289 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 06:41:56,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:56,517 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 06:41:56,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:56,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068002953] [2023-11-29 06:41:56,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068002953] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:41:56,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:41:56,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 06:41:56,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311097473] [2023-11-29 06:41:56,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:56,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:41:56,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:56,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:41:56,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:41:56,518 INFO L87 Difference]: Start difference. First operand 248 states and 278 transitions. Second operand has 14 states, 12 states have (on average 7.333333333333333) internal successors, (88), 14 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:41:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:57,308 INFO L93 Difference]: Finished difference Result 263 states and 300 transitions. [2023-11-29 06:41:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 06:41:57,309 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.333333333333333) internal successors, (88), 14 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 84 [2023-11-29 06:41:57,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:57,311 INFO L225 Difference]: With dead ends: 263 [2023-11-29 06:41:57,311 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 06:41:57,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:41:57,312 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 12 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:57,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1208 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:41:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 06:41:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 257. [2023-11-29 06:41:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 249 states have (on average 1.1365461847389557) internal successors, (283), 251 states have internal predecessors, (283), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:41:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 290 transitions. [2023-11-29 06:41:57,321 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 290 transitions. Word has length 84 [2023-11-29 06:41:57,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:57,321 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 290 transitions. [2023-11-29 06:41:57,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.333333333333333) internal successors, (88), 14 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:41:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 290 transitions. [2023-11-29 06:41:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 06:41:57,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:57,323 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] [2023-11-29 06:41:57,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:57,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:57,524 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:57,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:57,524 INFO L85 PathProgramCache]: Analyzing trace with hash 766786950, now seen corresponding path program 3 times [2023-11-29 06:41:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993907535] [2023-11-29 06:41:57,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:41:57,525 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 06:41:57,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:57,526 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:57,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:57,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:41:57,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:41:57,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:41:57,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:58,373 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:41:58,374 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:41:58,374 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 06:41:58,379 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 06:41:58,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:41:58,469 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 06:41:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-29 06:41:58,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:58,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:58,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993907535] [2023-11-29 06:41:58,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993907535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:58,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:58,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:41:58,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501089681] [2023-11-29 06:41:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:58,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:41:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:41:58,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:41:58,505 INFO L87 Difference]: Start difference. First operand 257 states and 290 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:41:58,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:58,949 INFO L93 Difference]: Finished difference Result 325 states and 366 transitions. [2023-11-29 06:41:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:58,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-29 06:41:58,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:58,951 INFO L225 Difference]: With dead ends: 325 [2023-11-29 06:41:58,951 INFO L226 Difference]: Without dead ends: 325 [2023-11-29 06:41:58,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:41:58,952 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 282 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:58,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 496 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:41:58,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-29 06:41:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 259. [2023-11-29 06:41:58,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.1354581673306774) internal successors, (285), 253 states have internal predecessors, (285), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:41:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 292 transitions. [2023-11-29 06:41:58,961 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 292 transitions. Word has length 93 [2023-11-29 06:41:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:58,961 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 292 transitions. [2023-11-29 06:41:58,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:41:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 292 transitions. [2023-11-29 06:41:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 06:41:58,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:58,963 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, 1] [2023-11-29 06:41:58,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:59,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:59,163 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:41:59,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:59,164 INFO L85 PathProgramCache]: Analyzing trace with hash 605199346, now seen corresponding path program 1 times [2023-11-29 06:41:59,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:59,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840495473] [2023-11-29 06:41:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:59,165 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 06:41:59,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:59,166 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:59,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:41:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:59,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:41:59,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:59,964 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 06:41:59,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:00,590 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 06:42:00,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:42:00,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840495473] [2023-11-29 06:42:00,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840495473] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:42:00,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:42:00,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 06:42:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609239552] [2023-11-29 06:42:00,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:00,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:42:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:42:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:42:00,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:42:00,593 INFO L87 Difference]: Start difference. First operand 259 states and 292 transitions. Second operand has 26 states, 24 states have (on average 5.791666666666667) internal successors, (139), 26 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:42:03,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:03,341 INFO L93 Difference]: Finished difference Result 289 states and 338 transitions. [2023-11-29 06:42:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 06:42:03,342 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.791666666666667) internal successors, (139), 26 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 132 [2023-11-29 06:42:03,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:03,345 INFO L225 Difference]: With dead ends: 289 [2023-11-29 06:42:03,345 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 06:42:03,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 06:42:03,348 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 24 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:03,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2070 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:42:03,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 06:42:03,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 277. [2023-11-29 06:42:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 269 states have (on average 1.1486988847583643) internal successors, (309), 271 states have internal predecessors, (309), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:42:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 316 transitions. [2023-11-29 06:42:03,360 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 316 transitions. Word has length 132 [2023-11-29 06:42:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:03,361 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 316 transitions. [2023-11-29 06:42:03,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.791666666666667) internal successors, (139), 26 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:42:03,361 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 316 transitions. [2023-11-29 06:42:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 06:42:03,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:03,363 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, 1] [2023-11-29 06:42:03,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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)] Ended with exit code 0 [2023-11-29 06:42:03,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:03,564 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:42:03,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1611049842, now seen corresponding path program 2 times [2023-11-29 06:42:03,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:42:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754548761] [2023-11-29 06:42:03,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:42:03,566 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 06:42:03,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:42:03,567 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:03,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:04,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:42:04,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:42:04,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 06:42:04,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:05,153 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 06:42:05,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:07,204 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 06:42:07,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:42:07,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754548761] [2023-11-29 06:42:07,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754548761] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:42:07,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:42:07,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 06:42:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049507547] [2023-11-29 06:42:07,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:07,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 06:42:07,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:42:07,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 06:42:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 06:42:07,208 INFO L87 Difference]: Start difference. First operand 277 states and 316 transitions. Second operand has 50 states, 48 states have (on average 3.3958333333333335) internal successors, (163), 50 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:42:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:17,161 INFO L93 Difference]: Finished difference Result 335 states and 406 transitions. [2023-11-29 06:42:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 06:42:17,164 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.3958333333333335) internal successors, (163), 50 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 150 [2023-11-29 06:42:17,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:17,166 INFO L225 Difference]: With dead ends: 335 [2023-11-29 06:42:17,166 INFO L226 Difference]: Without dead ends: 333 [2023-11-29 06:42:17,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 06:42:17,171 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 49 mSDsluCounter, 4300 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:17,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 4475 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 06:42:17,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-29 06:42:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 311. [2023-11-29 06:42:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 303 states have (on average 1.1716171617161717) internal successors, (355), 305 states have internal predecessors, (355), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:42:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 362 transitions. [2023-11-29 06:42:17,181 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 362 transitions. Word has length 150 [2023-11-29 06:42:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:17,182 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 362 transitions. [2023-11-29 06:42:17,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.3958333333333335) internal successors, (163), 50 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:42:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 362 transitions. [2023-11-29 06:42:17,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-29 06:42:17,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:17,184 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] [2023-11-29 06:42:17,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 06:42:17,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:17,385 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:42:17,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:17,385 INFO L85 PathProgramCache]: Analyzing trace with hash -597164430, now seen corresponding path program 3 times [2023-11-29 06:42:17,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:42:17,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615131041] [2023-11-29 06:42:17,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:42:17,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:42:17,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:42:17,387 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:17,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:17,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:42:17,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:42:17,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:42:17,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:18,299 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 06:42:18,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:42:18,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:42:18,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615131041] [2023-11-29 06:42:18,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615131041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:18,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:42:18,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:42:18,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788109754] [2023-11-29 06:42:18,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:18,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:42:18,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:42:18,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:42:18,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:42:18,302 INFO L87 Difference]: Start difference. First operand 311 states and 362 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:42:22,972 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 06:42:26,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:42:29,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:42:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:29,393 INFO L93 Difference]: Finished difference Result 269 states and 316 transitions. [2023-11-29 06:42:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:42:29,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 184 [2023-11-29 06:42:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:29,398 INFO L225 Difference]: With dead ends: 269 [2023-11-29 06:42:29,398 INFO L226 Difference]: Without dead ends: 269 [2023-11-29 06:42:29,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 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 06:42:29,399 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 231 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:29,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 224 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2023-11-29 06:42:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-29 06:42:29,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2023-11-29 06:42:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 261 states have (on average 1.1839080459770115) internal successors, (309), 263 states have internal predecessors, (309), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:42:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 316 transitions. [2023-11-29 06:42:29,405 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 316 transitions. Word has length 184 [2023-11-29 06:42:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:29,406 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 316 transitions. [2023-11-29 06:42:29,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:42:29,406 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 316 transitions. [2023-11-29 06:42:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 06:42:29,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:29,408 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, 1] [2023-11-29 06:42:29,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:29,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:29,608 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:42:29,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:29,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1850380996, now seen corresponding path program 1 times [2023-11-29 06:42:29,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:42:29,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497608320] [2023-11-29 06:42:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:29,610 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 06:42:29,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:42:29,611 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:29,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:30,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 06:42:30,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:31,610 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 06:42:31,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:34,230 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 06:42:34,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:42:34,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497608320] [2023-11-29 06:42:34,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497608320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:42:34,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:42:34,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 06:42:34,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422942461] [2023-11-29 06:42:34,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:34,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 06:42:34,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:42:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 06:42:34,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 06:42:34,234 INFO L87 Difference]: Start difference. First operand 269 states and 316 transitions. Second operand has 52 states, 50 states have (on average 3.4) internal successors, (170), 52 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:42:45,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:45,342 INFO L93 Difference]: Finished difference Result 318 states and 390 transitions. [2023-11-29 06:42:45,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 06:42:45,343 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.4) internal successors, (170), 52 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 192 [2023-11-29 06:42:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:45,345 INFO L225 Difference]: With dead ends: 318 [2023-11-29 06:42:45,345 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 06:42:45,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3563 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 06:42:45,349 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 54 mSDsluCounter, 4424 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:45,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4597 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 06:42:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 06:42:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 294. [2023-11-29 06:42:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 286 states have (on average 1.2552447552447552) internal successors, (359), 288 states have internal predecessors, (359), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:42:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 366 transitions. [2023-11-29 06:42:45,358 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 366 transitions. Word has length 192 [2023-11-29 06:42:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:45,359 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 366 transitions. [2023-11-29 06:42:45,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.4) internal successors, (170), 52 states have internal predecessors, (170), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:42:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 366 transitions. [2023-11-29 06:42:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 06:42:45,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:45,361 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, 1] [2023-11-29 06:42:45,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:45,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:45,561 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:42:45,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:45,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1841590096, now seen corresponding path program 2 times [2023-11-29 06:42:45,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:42:45,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497288116] [2023-11-29 06:42:45,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:42:45,563 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 06:42:45,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:42:45,564 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:45,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:42:47,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:42:47,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:42:47,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 06:42:47,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:49,855 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 06:42:49,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:58,589 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 06:42:58,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:42:58,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497288116] [2023-11-29 06:42:58,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497288116] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:42:58,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:42:58,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 06:42:58,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418525141] [2023-11-29 06:42:58,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:42:58,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 06:42:58,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:42:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 06:42:58,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 06:42:58,596 INFO L87 Difference]: Start difference. First operand 294 states and 366 transitions. Second operand has 102 states, 100 states have (on average 2.2) internal successors, (220), 102 states have internal predecessors, (220), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:43:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:43:51,555 INFO L93 Difference]: Finished difference Result 401 states and 526 transitions. [2023-11-29 06:43:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 06:43:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.2) internal successors, (220), 102 states have internal predecessors, (220), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 217 [2023-11-29 06:43:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:43:51,558 INFO L225 Difference]: With dead ends: 401 [2023-11-29 06:43:51,558 INFO L226 Difference]: Without dead ends: 401 [2023-11-29 06:43:51,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 47.3s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 06:43:51,564 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 115 mSDsluCounter, 8332 mSDsCounter, 0 mSdLazyCounter, 7946 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8505 SdHoareTripleChecker+Invalid, 8010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 7946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:43:51,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8505 Invalid, 8010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 7946 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-11-29 06:43:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-29 06:43:51,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 348. [2023-11-29 06:43:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 340 states have (on average 1.3705882352941177) internal successors, (466), 342 states have internal predecessors, (466), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:43:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 473 transitions. [2023-11-29 06:43:51,575 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 473 transitions. Word has length 217 [2023-11-29 06:43:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:43:51,576 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 473 transitions. [2023-11-29 06:43:51,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.2) internal successors, (220), 102 states have internal predecessors, (220), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:43:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 473 transitions. [2023-11-29 06:43:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 06:43:51,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:43:51,577 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, 1] [2023-11-29 06:43:51,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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)] Ended with exit code 0 [2023-11-29 06:43:51,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:43:51,778 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 06:43:51,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:51,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1080098608, now seen corresponding path program 3 times [2023-11-29 06:43:51,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:43:51,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276656510] [2023-11-29 06:43:51,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:43:51,780 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 06:43:51,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:43:51,781 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 06:43:51,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a187cb-8ce6-43bf-afc8-3109aa3b531f/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 (19)] Waiting until timeout for monitored process